diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index e9cb6cf..3bc22af 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -26,3 +26,6 @@
 
 # bulk format python code with black
 494bd9ef78313436f0424b918f200dab8fc7c20b
+
+# bulk format python code with black
+baec607ff5905b1c67531096a9cf50ec7ff00a5d
\ No newline at end of file
diff --git a/.github/workflows/server-tests-mariadb.yml b/.github/workflows/server-tests-mariadb.yml
index 69be765..8cc5826 100644
--- a/.github/workflows/server-tests-mariadb.yml
+++ b/.github/workflows/server-tests-mariadb.yml
@@ -119,9 +119,22 @@
           ORCHESTRATOR_URL: http://test-orchestrator.frappe.io
 
       - name: Upload coverage data
+        uses: actions/upload-artifact@v3
+        with:
+          name: coverage-${{ matrix.container }}
+          path: /home/runner/frappe-bench/sites/coverage.xml
+
+  coverage:
+    name: Coverage Wrap Up
+    needs: test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v3
+
+      - name: Upload coverage data
         uses: codecov/codecov-action@v2
         with:
           name: MariaDB
           fail_ci_if_error: true
-          files: /home/runner/frappe-bench/sites/coverage.xml
           verbose: true
diff --git a/.mergify.yml b/.mergify.yml
index 315d90f..cc8c080 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -88,3 +88,37 @@
           - version-12-pre-release
         assignees:
           - "{{ author }}"
+
+  - name: Automatic merge on CI success and review
+    conditions:
+      - status-success=linters
+      - status-success=Sider
+      - status-success=Semantic Pull Request
+      - status-success=Patch Test
+      - status-success=Python Unit Tests (1)
+      - status-success=Python Unit Tests (2)
+      - status-success=Python Unit Tests (3)
+      - label!=dont-merge
+      - label!=squash
+      - "#approved-reviews-by>=1"
+    actions:
+      merge:
+        method: merge
+  - name: Automatic squash on CI success and review
+    conditions:
+      - status-success=linters
+      - status-success=Sider
+      - status-success=Patch Test
+      - status-success=Python Unit Tests (1)
+      - status-success=Python Unit Tests (2)
+      - status-success=Python Unit Tests (3)
+      - label!=dont-merge
+      - label=squash
+      - "#approved-reviews-by>=1"
+    actions:
+      merge:
+        method: squash
+        commit_message_template: |
+            {{ title }} (#{{ number }})
+
+            {{ body }}
diff --git a/codecov.yml b/codecov.yml
index 1fa602a..7d9c37d 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -21,7 +21,6 @@
 comment:
   layout: "diff, files"
   require_changes: true
-  after_n_builds: 3
 
 ignore:
   - "erpnext/demo"
diff --git a/erpnext/accounts/doctype/gl_entry/gl_entry.js b/erpnext/accounts/doctype/gl_entry/gl_entry.js
index 491cf4d..4d2a513 100644
--- a/erpnext/accounts/doctype/gl_entry/gl_entry.js
+++ b/erpnext/accounts/doctype/gl_entry/gl_entry.js
@@ -3,6 +3,6 @@
 
 frappe.ui.form.on('GL Entry', {
 	refresh: function(frm) {
-
+		frm.page.btn_secondary.hide()
 	}
 });
diff --git a/erpnext/accounts/doctype/gl_entry/gl_entry.py b/erpnext/accounts/doctype/gl_entry/gl_entry.py
index aee7f0e..e5fa57d 100644
--- a/erpnext/accounts/doctype/gl_entry/gl_entry.py
+++ b/erpnext/accounts/doctype/gl_entry/gl_entry.py
@@ -269,6 +269,11 @@
 		if not self.fiscal_year:
 			self.fiscal_year = get_fiscal_year(self.posting_date, company=self.company)[0]
 
+	def on_cancel(self):
+		msg = _("Individual GL Entry cannot be cancelled.")
+		msg += "<br>" + _("Please cancel related transaction.")
+		frappe.throw(msg)
+
 
 def validate_balance_type(account, adv_adj=False):
 	if not adv_adj and account:
diff --git a/erpnext/accounts/doctype/gst_account/gst_account.json b/erpnext/accounts/doctype/gst_account/gst_account.json
index b6ec884..be5124c 100644
--- a/erpnext/accounts/doctype/gst_account/gst_account.json
+++ b/erpnext/accounts/doctype/gst_account/gst_account.json
@@ -10,6 +10,7 @@
   "sgst_account",
   "igst_account",
   "cess_account",
+  "utgst_account",
   "is_reverse_charge_account"
  ],
  "fields": [
@@ -64,12 +65,18 @@
    "fieldtype": "Check",
    "in_list_view": 1,
    "label": "Is Reverse Charge Account"
+  },
+  {
+   "fieldname": "utgst_account",
+   "fieldtype": "Link",
+   "label": "UTGST Account",
+   "options": "Account"
   }
  ],
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-04-09 12:30:25.889993",
+ "modified": "2022-04-07 12:59:14.039768",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "GST Account",
@@ -78,5 +85,6 @@
  "quick_entry": 1,
  "sort_field": "modified",
  "sort_order": "DESC",
+ "states": [],
  "track_changes": 1
 }
\ No newline at end of file
diff --git a/erpnext/accounts/doctype/party_account/party_account.json b/erpnext/accounts/doctype/party_account/party_account.json
index c9f15a6..6933057 100644
--- a/erpnext/accounts/doctype/party_account/party_account.json
+++ b/erpnext/accounts/doctype/party_account/party_account.json
@@ -3,6 +3,7 @@
  "creation": "2014-08-29 16:02:39.740505",
  "doctype": "DocType",
  "editable_grid": 1,
+ "engine": "InnoDB",
  "field_order": [
   "company",
   "account"
@@ -11,6 +12,7 @@
   {
    "fieldname": "company",
    "fieldtype": "Link",
+   "ignore_user_permissions": 1,
    "in_list_view": 1,
    "label": "Company",
    "options": "Company",
@@ -27,7 +29,7 @@
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-04-07 18:13:08.833822",
+ "modified": "2022-04-04 12:31:02.994197",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Party Account",
@@ -35,5 +37,6 @@
  "permissions": [],
  "quick_entry": 1,
  "sort_field": "modified",
- "sort_order": "DESC"
+ "sort_order": "DESC",
+ "states": []
 }
\ No newline at end of file
diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.js b/erpnext/accounts/doctype/payment_entry/payment_entry.js
index 7315ae8..403e2bd 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.js
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.js
@@ -224,10 +224,7 @@
 			(frm.doc.total_allocated_amount > party_amount)));
 
 		frm.toggle_display("set_exchange_gain_loss",
-			(frm.doc.paid_amount && frm.doc.received_amount && frm.doc.difference_amount &&
-				((frm.doc.paid_from_account_currency != company_currency ||
-					frm.doc.paid_to_account_currency != company_currency) &&
-					frm.doc.paid_from_account_currency != frm.doc.paid_to_account_currency)));
+			frm.doc.paid_amount && frm.doc.received_amount && frm.doc.difference_amount);
 
 		frm.refresh_fields();
 	},
diff --git a/erpnext/accounts/doctype/pricing_rule/pricing_rule.py b/erpnext/accounts/doctype/pricing_rule/pricing_rule.py
index c45b069..2438f4b 100644
--- a/erpnext/accounts/doctype/pricing_rule/pricing_rule.py
+++ b/erpnext/accounts/doctype/pricing_rule/pricing_rule.py
@@ -35,10 +35,11 @@
 			self.margin_rate_or_amount = 0.0
 
 	def validate_duplicate_apply_on(self):
-		field = apply_on_dict.get(self.apply_on)
-		values = [d.get(frappe.scrub(self.apply_on)) for d in self.get(field) if field]
-		if len(values) != len(set(values)):
-			frappe.throw(_("Duplicate {0} found in the table").format(self.apply_on))
+		if self.apply_on != "Transaction":
+			field = apply_on_dict.get(self.apply_on)
+			values = [d.get(frappe.scrub(self.apply_on)) for d in self.get(field) if field]
+			if len(values) != len(set(values)):
+				frappe.throw(_("Duplicate {0} found in the table").format(self.apply_on))
 
 	def validate_mandatory(self):
 		for apply_on, field in apply_on_dict.items():
diff --git a/erpnext/accounts/report/purchase_register/purchase_register.py b/erpnext/accounts/report/purchase_register/purchase_register.py
index c359959..a73c72c 100644
--- a/erpnext/accounts/report/purchase_register/purchase_register.py
+++ b/erpnext/accounts/report/purchase_register/purchase_register.py
@@ -124,11 +124,10 @@
 		_("Purchase Receipt") + ":Link/Purchase Receipt:100",
 		{"fieldname": "currency", "label": _("Currency"), "fieldtype": "Data", "width": 80},
 	]
-	expense_accounts = (
-		tax_accounts
-	) = (
-		expense_columns
-	) = tax_columns = unrealized_profit_loss_accounts = unrealized_profit_loss_account_columns = []
+
+	expense_accounts = []
+	tax_accounts = []
+	unrealized_profit_loss_accounts = []
 
 	if invoice_list:
 		expense_accounts = frappe.db.sql_list(
@@ -163,10 +162,11 @@
 	unrealized_profit_loss_account_columns = [
 		(account + ":Currency/currency:120") for account in unrealized_profit_loss_accounts
 	]
-
-	for account in tax_accounts:
-		if account not in expense_accounts:
-			tax_columns.append(account + ":Currency/currency:120")
+	tax_columns = [
+		(account + ":Currency/currency:120")
+		for account in tax_accounts
+		if account not in expense_accounts
+	]
 
 	columns = (
 		columns
diff --git a/erpnext/controllers/sales_and_purchase_return.py b/erpnext/controllers/sales_and_purchase_return.py
index bdde3a1..bd4b59b 100644
--- a/erpnext/controllers/sales_and_purchase_return.py
+++ b/erpnext/controllers/sales_and_purchase_return.py
@@ -330,7 +330,6 @@
 		doc = frappe.get_doc(target)
 		doc.is_return = 1
 		doc.return_against = source.name
-		doc.ignore_pricing_rule = 1
 		doc.set_warehouse = ""
 		if doctype == "Sales Invoice" or doctype == "POS Invoice":
 			doc.is_pos = source.is_pos
diff --git a/erpnext/crm/doctype/opportunity/opportunity.py b/erpnext/crm/doctype/opportunity/opportunity.py
index 03ff269..96c730c 100644
--- a/erpnext/crm/doctype/opportunity/opportunity.py
+++ b/erpnext/crm/doctype/opportunity/opportunity.py
@@ -126,7 +126,8 @@
 	def declare_enquiry_lost(self, lost_reasons_list, competitors, detailed_reason=None):
 		if not self.has_active_quotation():
 			self.status = "Lost"
-			self.lost_reasons = self.competitors = []
+			self.lost_reasons = []
+			self.competitors = []
 
 			if detailed_reason:
 				self.order_lost_reason = detailed_reason
diff --git a/erpnext/crm/report/opportunity_summary_by_sales_stage/opportunity_summary_by_sales_stage.py b/erpnext/crm/report/opportunity_summary_by_sales_stage/opportunity_summary_by_sales_stage.py
index 77e6ae2..3a46fb0 100644
--- a/erpnext/crm/report/opportunity_summary_by_sales_stage/opportunity_summary_by_sales_stage.py
+++ b/erpnext/crm/report/opportunity_summary_by_sales_stage/opportunity_summary_by_sales_stage.py
@@ -1,9 +1,9 @@
 # Copyright (c) 2013, Frappe Technologies Pvt. Ltd. and contributors
 # For license information, please see license.txt
 import json
+from itertools import groupby
 
 import frappe
-import pandas
 from frappe import _
 from frappe.utils import flt
 
@@ -101,18 +101,19 @@
 
 			self.convert_to_base_currency()
 
-			dataframe = pandas.DataFrame.from_records(self.query_result)
-			dataframe.replace(to_replace=[None], value="Not Assigned", inplace=True)
-			result = dataframe.groupby(["sales_stage", based_on], as_index=False)["amount"].sum()
+			for row in self.query_result:
+				if not row.get(based_on):
+					row[based_on] = "Not Assigned"
 
 			self.grouped_data = []
 
-			for i in range(len(result["amount"])):
+			grouping_key = lambda o: (o["sales_stage"], o[based_on])  # noqa
+			for (sales_stage, _based_on), rows in groupby(self.query_result, grouping_key):
 				self.grouped_data.append(
 					{
-						"sales_stage": result["sales_stage"][i],
-						based_on: result[based_on][i],
-						"amount": result["amount"][i],
+						"sales_stage": sales_stage,
+						based_on: _based_on,
+						"amount": sum(flt(r["amount"]) for r in rows),
 					}
 				)
 
diff --git a/erpnext/crm/report/sales_pipeline_analytics/sales_pipeline_analytics.py b/erpnext/crm/report/sales_pipeline_analytics/sales_pipeline_analytics.py
index b0c174b..d23a22a 100644
--- a/erpnext/crm/report/sales_pipeline_analytics/sales_pipeline_analytics.py
+++ b/erpnext/crm/report/sales_pipeline_analytics/sales_pipeline_analytics.py
@@ -3,9 +3,9 @@
 
 import json
 from datetime import date
+from itertools import groupby
 
 import frappe
-import pandas
 from dateutil.relativedelta import relativedelta
 from frappe import _
 from frappe.utils import cint, flt
@@ -109,18 +109,15 @@
 
 			self.convert_to_base_currency()
 
-			dataframe = pandas.DataFrame.from_records(self.query_result)
-			dataframe.replace(to_replace=[None], value="Not Assigned", inplace=True)
-			result = dataframe.groupby([self.pipeline_by, self.period_by], as_index=False)["amount"].sum()
-
 			self.grouped_data = []
 
-			for i in range(len(result["amount"])):
+			grouping_key = lambda o: (o.get(self.pipeline_by) or "Not Assigned", o[self.period_by])  # noqa
+			for (pipeline_by, period_by), rows in groupby(self.query_result, grouping_key):
 				self.grouped_data.append(
 					{
-						self.pipeline_by: result[self.pipeline_by][i],
-						self.period_by: result[self.period_by][i],
-						"amount": result["amount"][i],
+						self.pipeline_by: pipeline_by,
+						self.period_by: period_by,
+						"amount": sum(flt(r["amount"]) for r in rows),
 					}
 				)
 
diff --git a/erpnext/hr/doctype/attendance/attendance.py b/erpnext/hr/doctype/attendance/attendance.py
index 7f4bd83..e43d40e 100644
--- a/erpnext/hr/doctype/attendance/attendance.py
+++ b/erpnext/hr/doctype/attendance/attendance.py
@@ -5,11 +5,21 @@
 import frappe
 from frappe import _
 from frappe.model.document import Document
-from frappe.utils import cint, cstr, formatdate, get_datetime, getdate, nowdate
+from frappe.query_builder import Criterion
+from frappe.utils import cint, cstr, formatdate, get_datetime, get_link_to_form, getdate, nowdate
 
+from erpnext.hr.doctype.shift_assignment.shift_assignment import has_overlapping_timings
 from erpnext.hr.utils import get_holiday_dates_for_employee, validate_active_employee
 
 
+class DuplicateAttendanceError(frappe.ValidationError):
+	pass
+
+
+class OverlappingShiftAttendanceError(frappe.ValidationError):
+	pass
+
+
 class Attendance(Document):
 	def validate(self):
 		from erpnext.controllers.status_updater import validate_status
@@ -18,6 +28,7 @@
 		validate_active_employee(self.employee)
 		self.validate_attendance_date()
 		self.validate_duplicate_record()
+		self.validate_overlapping_shift_attendance()
 		self.validate_employee_status()
 		self.check_leave_record()
 
@@ -35,21 +46,35 @@
 			frappe.throw(_("Attendance date can not be less than employee's joining date"))
 
 	def validate_duplicate_record(self):
-		res = frappe.db.sql(
-			"""
-			select name from `tabAttendance`
-			where employee = %s
-				and attendance_date = %s
-				and name != %s
-				and docstatus != 2
-		""",
-			(self.employee, getdate(self.attendance_date), self.name),
+		duplicate = get_duplicate_attendance_record(
+			self.employee, self.attendance_date, self.shift, self.name
 		)
-		if res:
+
+		if duplicate:
 			frappe.throw(
-				_("Attendance for employee {0} is already marked for the date {1}").format(
-					frappe.bold(self.employee), frappe.bold(self.attendance_date)
-				)
+				_("Attendance for employee {0} is already marked for the date {1}: {2}").format(
+					frappe.bold(self.employee),
+					frappe.bold(self.attendance_date),
+					get_link_to_form("Attendance", duplicate[0].name),
+				),
+				title=_("Duplicate Attendance"),
+				exc=DuplicateAttendanceError,
+			)
+
+	def validate_overlapping_shift_attendance(self):
+		attendance = get_overlapping_shift_attendance(
+			self.employee, self.attendance_date, self.shift, self.name
+		)
+
+		if attendance:
+			frappe.throw(
+				_("Attendance for employee {0} is already marked for an overlapping shift {1}: {2}").format(
+					frappe.bold(self.employee),
+					frappe.bold(attendance.shift),
+					get_link_to_form("Attendance", attendance.name),
+				),
+				title=_("Overlapping Shift Attendance"),
+				exc=OverlappingShiftAttendanceError,
 			)
 
 	def validate_employee_status(self):
@@ -103,6 +128,69 @@
 			frappe.throw(_("Employee {0} is not active or does not exist").format(self.employee))
 
 
+def get_duplicate_attendance_record(employee, attendance_date, shift, name=None):
+	attendance = frappe.qb.DocType("Attendance")
+	query = (
+		frappe.qb.from_(attendance)
+		.select(attendance.name)
+		.where((attendance.employee == employee) & (attendance.docstatus < 2))
+	)
+
+	if shift:
+		query = query.where(
+			Criterion.any(
+				[
+					Criterion.all(
+						[
+							((attendance.shift.isnull()) | (attendance.shift == "")),
+							(attendance.attendance_date == attendance_date),
+						]
+					),
+					Criterion.all(
+						[
+							((attendance.shift.isnotnull()) | (attendance.shift != "")),
+							(attendance.attendance_date == attendance_date),
+							(attendance.shift == shift),
+						]
+					),
+				]
+			)
+		)
+	else:
+		query = query.where((attendance.attendance_date == attendance_date))
+
+	if name:
+		query = query.where(attendance.name != name)
+
+	return query.run(as_dict=True)
+
+
+def get_overlapping_shift_attendance(employee, attendance_date, shift, name=None):
+	if not shift:
+		return {}
+
+	attendance = frappe.qb.DocType("Attendance")
+	query = (
+		frappe.qb.from_(attendance)
+		.select(attendance.name, attendance.shift)
+		.where(
+			(attendance.employee == employee)
+			& (attendance.docstatus < 2)
+			& (attendance.attendance_date == attendance_date)
+			& (attendance.shift != shift)
+		)
+	)
+
+	if name:
+		query = query.where(attendance.name != name)
+
+	overlapping_attendance = query.run(as_dict=True)
+
+	if overlapping_attendance and has_overlapping_timings(shift, overlapping_attendance[0].shift):
+		return overlapping_attendance[0]
+	return {}
+
+
 @frappe.whitelist()
 def get_events(start, end, filters=None):
 	events = []
@@ -141,28 +229,39 @@
 
 
 def mark_attendance(
-	employee, attendance_date, status, shift=None, leave_type=None, ignore_validate=False
+	employee,
+	attendance_date,
+	status,
+	shift=None,
+	leave_type=None,
+	ignore_validate=False,
+	late_entry=False,
+	early_exit=False,
 ):
-	if not frappe.db.exists(
-		"Attendance",
-		{"employee": employee, "attendance_date": attendance_date, "docstatus": ("!=", "2")},
-	):
-		company = frappe.db.get_value("Employee", employee, "company")
-		attendance = frappe.get_doc(
-			{
-				"doctype": "Attendance",
-				"employee": employee,
-				"attendance_date": attendance_date,
-				"status": status,
-				"company": company,
-				"shift": shift,
-				"leave_type": leave_type,
-			}
-		)
-		attendance.flags.ignore_validate = ignore_validate
-		attendance.insert()
-		attendance.submit()
-		return attendance.name
+	if get_duplicate_attendance_record(employee, attendance_date, shift):
+		return
+
+	if get_overlapping_shift_attendance(employee, attendance_date, shift):
+		return
+
+	company = frappe.db.get_value("Employee", employee, "company")
+	attendance = frappe.get_doc(
+		{
+			"doctype": "Attendance",
+			"employee": employee,
+			"attendance_date": attendance_date,
+			"status": status,
+			"company": company,
+			"shift": shift,
+			"leave_type": leave_type,
+			"late_entry": late_entry,
+			"early_exit": early_exit,
+		}
+	)
+	attendance.flags.ignore_validate = ignore_validate
+	attendance.insert()
+	attendance.submit()
+	return attendance.name
 
 
 @frappe.whitelist()
diff --git a/erpnext/hr/doctype/attendance/test_attendance.py b/erpnext/hr/doctype/attendance/test_attendance.py
index 058bc93..762d0f7 100644
--- a/erpnext/hr/doctype/attendance/test_attendance.py
+++ b/erpnext/hr/doctype/attendance/test_attendance.py
@@ -6,6 +6,8 @@
 from frappe.utils import add_days, get_year_ending, get_year_start, getdate, now_datetime, nowdate
 
 from erpnext.hr.doctype.attendance.attendance import (
+	DuplicateAttendanceError,
+	OverlappingShiftAttendanceError,
 	get_month_map,
 	get_unmarked_days,
 	mark_attendance,
@@ -23,11 +25,112 @@
 		from_date = get_year_start(getdate())
 		to_date = get_year_ending(getdate())
 		self.holiday_list = make_holiday_list(from_date=from_date, to_date=to_date)
+		frappe.db.delete("Attendance")
+
+	def test_duplicate_attendance(self):
+		employee = make_employee("test_duplicate_attendance@example.com", company="_Test Company")
+		date = nowdate()
+
+		mark_attendance(employee, date, "Present")
+		attendance = frappe.get_doc(
+			{
+				"doctype": "Attendance",
+				"employee": employee,
+				"attendance_date": date,
+				"status": "Absent",
+				"company": "_Test Company",
+			}
+		)
+
+		self.assertRaises(DuplicateAttendanceError, attendance.insert)
+
+	def test_duplicate_attendance_with_shift(self):
+		from erpnext.hr.doctype.shift_type.test_shift_type import setup_shift_type
+
+		employee = make_employee("test_duplicate_attendance@example.com", company="_Test Company")
+		date = nowdate()
+
+		shift_1 = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="10:00:00")
+		mark_attendance(employee, date, "Present", shift=shift_1.name)
+
+		# attendance record with shift
+		attendance = frappe.get_doc(
+			{
+				"doctype": "Attendance",
+				"employee": employee,
+				"attendance_date": date,
+				"status": "Absent",
+				"company": "_Test Company",
+				"shift": shift_1.name,
+			}
+		)
+
+		self.assertRaises(DuplicateAttendanceError, attendance.insert)
+
+		# attendance record without any shift
+		attendance = frappe.get_doc(
+			{
+				"doctype": "Attendance",
+				"employee": employee,
+				"attendance_date": date,
+				"status": "Absent",
+				"company": "_Test Company",
+			}
+		)
+
+		self.assertRaises(DuplicateAttendanceError, attendance.insert)
+
+	def test_overlapping_shift_attendance_validation(self):
+		from erpnext.hr.doctype.shift_type.test_shift_type import setup_shift_type
+
+		employee = make_employee("test_overlap_attendance@example.com", company="_Test Company")
+		date = nowdate()
+
+		shift_1 = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="10:00:00")
+		shift_2 = setup_shift_type(shift_type="Shift 2", start_time="09:30:00", end_time="11:00:00")
+
+		mark_attendance(employee, date, "Present", shift=shift_1.name)
+
+		# attendance record with overlapping shift
+		attendance = frappe.get_doc(
+			{
+				"doctype": "Attendance",
+				"employee": employee,
+				"attendance_date": date,
+				"status": "Absent",
+				"company": "_Test Company",
+				"shift": shift_2.name,
+			}
+		)
+
+		self.assertRaises(OverlappingShiftAttendanceError, attendance.insert)
+
+	def test_allow_attendance_with_different_shifts(self):
+		# allows attendance with 2 different non-overlapping shifts
+		from erpnext.hr.doctype.shift_type.test_shift_type import setup_shift_type
+
+		employee = make_employee("test_duplicate_attendance@example.com", company="_Test Company")
+		date = nowdate()
+
+		shift_1 = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="10:00:00")
+		shift_2 = setup_shift_type(shift_type="Shift 2", start_time="11:00:00", end_time="12:00:00")
+
+		mark_attendance(employee, date, "Present", shift_1.name)
+		frappe.get_doc(
+			{
+				"doctype": "Attendance",
+				"employee": employee,
+				"attendance_date": date,
+				"status": "Absent",
+				"company": "_Test Company",
+				"shift": shift_2.name,
+			}
+		).insert()
 
 	def test_mark_absent(self):
 		employee = make_employee("test_mark_absent@example.com")
 		date = nowdate()
-		frappe.db.delete("Attendance", {"employee": employee, "attendance_date": date})
+
 		attendance = mark_attendance(employee, date, "Absent")
 		fetch_attendance = frappe.get_value(
 			"Attendance", {"employee": employee, "attendance_date": date, "status": "Absent"}
@@ -42,7 +145,6 @@
 		employee = make_employee(
 			"test_unmarked_days@example.com", date_of_joining=add_days(first_day, -1)
 		)
-		frappe.db.delete("Attendance", {"employee": employee})
 		frappe.db.set_value("Employee", employee, "holiday_list", self.holiday_list)
 
 		first_sunday = get_first_sunday(self.holiday_list, for_date=first_day)
@@ -67,8 +169,6 @@
 		employee = make_employee(
 			"test_unmarked_days@example.com", date_of_joining=add_days(first_day, -1)
 		)
-		frappe.db.delete("Attendance", {"employee": employee})
-
 		frappe.db.set_value("Employee", employee, "holiday_list", self.holiday_list)
 
 		first_sunday = get_first_sunday(self.holiday_list, for_date=first_day)
@@ -95,7 +195,6 @@
 		employee = make_employee(
 			"test_unmarked_days_as_per_doj@example.com", date_of_joining=doj, relieving_date=relieving_date
 		)
-		frappe.db.delete("Attendance", {"employee": employee})
 
 		frappe.db.set_value("Employee", employee, "holiday_list", self.holiday_list)
 
diff --git a/erpnext/hr/doctype/employee_checkin/employee_checkin.py b/erpnext/hr/doctype/employee_checkin/employee_checkin.py
index 87f48b7..64eb019 100644
--- a/erpnext/hr/doctype/employee_checkin/employee_checkin.py
+++ b/erpnext/hr/doctype/employee_checkin/employee_checkin.py
@@ -7,6 +7,10 @@
 from frappe.model.document import Document
 from frappe.utils import cint, get_datetime
 
+from erpnext.hr.doctype.attendance.attendance import (
+	get_duplicate_attendance_record,
+	get_overlapping_shift_attendance,
+)
 from erpnext.hr.doctype.shift_assignment.shift_assignment import (
 	get_actual_start_end_datetime_of_shift,
 )
@@ -33,24 +37,24 @@
 		shift_actual_timings = get_actual_start_end_datetime_of_shift(
 			self.employee, get_datetime(self.time), True
 		)
-		if shift_actual_timings[0] and shift_actual_timings[1]:
+		if shift_actual_timings:
 			if (
-				shift_actual_timings[2].shift_type.determine_check_in_and_check_out
+				shift_actual_timings.shift_type.determine_check_in_and_check_out
 				== "Strictly based on Log Type in Employee Checkin"
 				and not self.log_type
 				and not self.skip_auto_attendance
 			):
 				frappe.throw(
 					_("Log Type is required for check-ins falling in the shift: {0}.").format(
-						shift_actual_timings[2].shift_type.name
+						shift_actual_timings.shift_type.name
 					)
 				)
 			if not self.attendance:
-				self.shift = shift_actual_timings[2].shift_type.name
-				self.shift_actual_start = shift_actual_timings[0]
-				self.shift_actual_end = shift_actual_timings[1]
-				self.shift_start = shift_actual_timings[2].start_datetime
-				self.shift_end = shift_actual_timings[2].end_datetime
+				self.shift = shift_actual_timings.shift_type.name
+				self.shift_actual_start = shift_actual_timings.actual_start
+				self.shift_actual_end = shift_actual_timings.actual_end
+				self.shift_start = shift_actual_timings.start_datetime
+				self.shift_end = shift_actual_timings.end_datetime
 		else:
 			self.shift = None
 
@@ -136,10 +140,10 @@
 		return None
 	elif attendance_status in ("Present", "Absent", "Half Day"):
 		employee_doc = frappe.get_doc("Employee", employee)
-		if not frappe.db.exists(
-			"Attendance",
-			{"employee": employee, "attendance_date": attendance_date, "docstatus": ("!=", "2")},
-		):
+		duplicate = get_duplicate_attendance_record(employee, attendance_date, shift)
+		overlapping = get_overlapping_shift_attendance(employee, attendance_date, shift)
+
+		if not duplicate and not overlapping:
 			doc_dict = {
 				"doctype": "Attendance",
 				"employee": employee,
@@ -232,7 +236,7 @@
 
 
 def time_diff_in_hours(start, end):
-	return round((end - start).total_seconds() / 3600, 1)
+	return round(float((end - start).total_seconds()) / 3600, 2)
 
 
 def find_index_in_dict(dict_list, key, value):
diff --git a/erpnext/hr/doctype/employee_checkin/test_employee_checkin.py b/erpnext/hr/doctype/employee_checkin/test_employee_checkin.py
index 97f76b0..81b44f8 100644
--- a/erpnext/hr/doctype/employee_checkin/test_employee_checkin.py
+++ b/erpnext/hr/doctype/employee_checkin/test_employee_checkin.py
@@ -2,10 +2,19 @@
 # See license.txt
 
 import unittest
-from datetime import timedelta
+from datetime import datetime, timedelta
 
 import frappe
-from frappe.utils import now_datetime, nowdate
+from frappe.tests.utils import FrappeTestCase
+from frappe.utils import (
+	add_days,
+	get_time,
+	get_year_ending,
+	get_year_start,
+	getdate,
+	now_datetime,
+	nowdate,
+)
 
 from erpnext.hr.doctype.employee.test_employee import make_employee
 from erpnext.hr.doctype.employee_checkin.employee_checkin import (
@@ -13,9 +22,22 @@
 	calculate_working_hours,
 	mark_attendance_and_link_log,
 )
+from erpnext.hr.doctype.holiday_list.test_holiday_list import set_holiday_list
+from erpnext.hr.doctype.leave_application.test_leave_application import get_first_sunday
+from erpnext.hr.doctype.shift_type.test_shift_type import make_shift_assignment, setup_shift_type
+from erpnext.payroll.doctype.salary_slip.test_salary_slip import make_holiday_list
 
 
-class TestEmployeeCheckin(unittest.TestCase):
+class TestEmployeeCheckin(FrappeTestCase):
+	def setUp(self):
+		frappe.db.delete("Shift Type")
+		frappe.db.delete("Shift Assignment")
+		frappe.db.delete("Employee Checkin")
+
+		from_date = get_year_start(getdate())
+		to_date = get_year_ending(getdate())
+		self.holiday_list = make_holiday_list(from_date=from_date, to_date=to_date)
+
 	def test_add_log_based_on_employee_field(self):
 		employee = make_employee("test_add_log_based_on_employee_field@example.com")
 		employee = frappe.get_doc("Employee", employee)
@@ -103,6 +125,163 @@
 		)
 		self.assertEqual(working_hours, (4.5, logs_type_2[1].time, logs_type_2[-1].time))
 
+	def test_fetch_shift(self):
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+
+		# shift setup for 8-12
+		shift_type = setup_shift_type()
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		# within shift time
+		timestamp = datetime.combine(date, get_time("08:45:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertEqual(log.shift, shift_type.name)
+
+		# "begin checkin before shift time" = 60 mins, so should work for 7:00:00
+		timestamp = datetime.combine(date, get_time("07:00:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertEqual(log.shift, shift_type.name)
+
+		# "allow checkout after shift end time" = 60 mins, so should work for 13:00:00
+		timestamp = datetime.combine(date, get_time("13:00:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertEqual(log.shift, shift_type.name)
+
+		# should not fetch this shift beyond allowed time
+		timestamp = datetime.combine(date, get_time("13:01:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertIsNone(log.shift)
+
+	def test_shift_start_and_end_timings(self):
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+
+		# shift setup for 8-12
+		shift_type = setup_shift_type()
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("08:45:00"))
+		log = make_checkin(employee, timestamp)
+
+		self.assertEqual(log.shift, shift_type.name)
+		self.assertEqual(log.shift_start, datetime.combine(date, get_time("08:00:00")))
+		self.assertEqual(log.shift_end, datetime.combine(date, get_time("12:00:00")))
+		self.assertEqual(log.shift_actual_start, datetime.combine(date, get_time("07:00:00")))
+		self.assertEqual(log.shift_actual_end, datetime.combine(date, get_time("13:00:00")))
+
+	def test_fetch_shift_based_on_default_shift(self):
+		employee = make_employee("test_default_shift@example.com", company="_Test Company")
+		default_shift = setup_shift_type(
+			shift_type="Default Shift", start_time="14:00:00", end_time="16:00:00"
+		)
+
+		date = getdate()
+		frappe.db.set_value("Employee", employee, "default_shift", default_shift.name)
+
+		timestamp = datetime.combine(date, get_time("14:45:00"))
+		log = make_checkin(employee, timestamp)
+
+		# should consider default shift
+		self.assertEqual(log.shift, default_shift.name)
+
+	def test_fetch_shift_spanning_over_two_days(self):
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_type = setup_shift_type(
+			shift_type="Midnight Shift", start_time="23:00:00", end_time="01:00:00"
+		)
+		date = getdate()
+		next_day = add_days(date, 1)
+		make_shift_assignment(shift_type.name, employee, date)
+
+		# log falls in the first day
+		timestamp = datetime.combine(date, get_time("23:00:00"))
+		log = make_checkin(employee, timestamp)
+
+		self.assertEqual(log.shift, shift_type.name)
+		self.assertEqual(log.shift_start, datetime.combine(date, get_time("23:00:00")))
+		self.assertEqual(log.shift_end, datetime.combine(next_day, get_time("01:00:00")))
+		self.assertEqual(log.shift_actual_start, datetime.combine(date, get_time("22:00:00")))
+		self.assertEqual(log.shift_actual_end, datetime.combine(next_day, get_time("02:00:00")))
+
+		log.delete()
+
+		# log falls in the second day
+		prev_day = add_days(date, -1)
+		timestamp = datetime.combine(date, get_time("01:30:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertEqual(log.shift, shift_type.name)
+		self.assertEqual(log.shift_start, datetime.combine(prev_day, get_time("23:00:00")))
+		self.assertEqual(log.shift_end, datetime.combine(date, get_time("01:00:00")))
+		self.assertEqual(log.shift_actual_start, datetime.combine(prev_day, get_time("22:00:00")))
+		self.assertEqual(log.shift_actual_end, datetime.combine(date, get_time("02:00:00")))
+
+	def test_no_shift_fetched_on_holiday_as_per_shift_holiday_list(self):
+		date = getdate()
+		from_date = get_year_start(date)
+		to_date = get_year_ending(date)
+		holiday_list = make_holiday_list(from_date=from_date, to_date=to_date)
+
+		employee = make_employee("test_shift_with_holiday@example.com", company="_Test Company")
+		setup_shift_type(shift_type="Test Holiday Shift", holiday_list=holiday_list)
+
+		first_sunday = get_first_sunday(holiday_list, for_date=date)
+		timestamp = datetime.combine(first_sunday, get_time("08:00:00"))
+		log = make_checkin(employee, timestamp)
+
+		self.assertIsNone(log.shift)
+
+	@set_holiday_list("Salary Slip Test Holiday List", "_Test Company")
+	def test_no_shift_fetched_on_holiday_as_per_employee_holiday_list(self):
+		employee = make_employee("test_shift_with_holiday@example.com", company="_Test Company")
+		shift_type = setup_shift_type(shift_type="Test Holiday Shift")
+		shift_type.holiday_list = None
+		shift_type.save()
+
+		date = getdate()
+
+		first_sunday = get_first_sunday(self.holiday_list, for_date=date)
+		timestamp = datetime.combine(first_sunday, get_time("08:00:00"))
+		log = make_checkin(employee, timestamp)
+
+		self.assertIsNone(log.shift)
+
+	def test_consecutive_shift_assignments_overlapping_within_grace_period(self):
+		# test adjustment for start and end times if they are overlapping
+		# within "begin_check_in_before_shift_start_time" and "allow_check_out_after_shift_end_time" periods
+		employee = make_employee("test_shift@example.com", company="_Test Company")
+
+		# 8 - 12
+		shift1 = setup_shift_type()
+		# 12:30 - 16:30
+		shift2 = setup_shift_type(
+			shift_type="Consecutive Shift", start_time="12:30:00", end_time="16:30:00"
+		)
+
+		# the actual start and end times (with grace) for these shifts are 7 - 13 and 11:30 - 17:30
+		date = getdate()
+		make_shift_assignment(shift1.name, employee, date)
+		make_shift_assignment(shift2.name, employee, date)
+
+		# log at 12:30 should set shift2 and actual start as 12 and not 11:30
+		timestamp = datetime.combine(date, get_time("12:30:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertEqual(log.shift, shift2.name)
+		self.assertEqual(log.shift_start, datetime.combine(date, get_time("12:30:00")))
+		self.assertEqual(log.shift_actual_start, datetime.combine(date, get_time("12:00:00")))
+
+		# log at 12:00 should set shift1 and actual end as 12 and not 1 since the next shift's grace starts
+		timestamp = datetime.combine(date, get_time("12:00:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertEqual(log.shift, shift1.name)
+		self.assertEqual(log.shift_end, datetime.combine(date, get_time("12:00:00")))
+		self.assertEqual(log.shift_actual_end, datetime.combine(date, get_time("12:00:00")))
+
+		# log at 12:01 should set shift2
+		timestamp = datetime.combine(date, get_time("12:01:00"))
+		log = make_checkin(employee, timestamp)
+		self.assertEqual(log.shift, shift2.name)
+
 
 def make_n_checkins(employee, n, hours_to_reverse=1):
 	logs = [make_checkin(employee, now_datetime() - timedelta(hours=hours_to_reverse, minutes=n + 1))]
diff --git a/erpnext/hr/doctype/leave_allocation/leave_allocation.js b/erpnext/hr/doctype/leave_allocation/leave_allocation.js
index 9742387..aef4412 100755
--- a/erpnext/hr/doctype/leave_allocation/leave_allocation.js
+++ b/erpnext/hr/doctype/leave_allocation/leave_allocation.js
@@ -34,6 +34,15 @@
 				});
 			}
 		}
+
+		// make new leaves allocated field read only if allocation is created via leave policy assignment
+		// and leave type is earned leave, since these leaves would be allocated via the scheduler
+		if (frm.doc.leave_policy_assignment) {
+			frappe.db.get_value("Leave Type", frm.doc.leave_type, "is_earned_leave", (r) => {
+				if (r && cint(r.is_earned_leave))
+					frm.set_df_property("new_leaves_allocated", "read_only", 1);
+			});
+		}
 	},
 
 	expire_allocation: function(frm) {
diff --git a/erpnext/hr/doctype/leave_allocation/leave_allocation.json b/erpnext/hr/doctype/leave_allocation/leave_allocation.json
index 9ecbe01..9d1db9b 100644
--- a/erpnext/hr/doctype/leave_allocation/leave_allocation.json
+++ b/erpnext/hr/doctype/leave_allocation/leave_allocation.json
@@ -237,7 +237,7 @@
  "index_web_pages_for_search": 1,
  "is_submittable": 1,
  "links": [],
- "modified": "2022-01-18 19:15:53.262536",
+ "modified": "2022-04-07 09:50:33.145825",
  "modified_by": "Administrator",
  "module": "HR",
  "name": "Leave Allocation",
@@ -281,5 +281,6 @@
  "sort_order": "DESC",
  "states": [],
  "timeline_field": "employee",
- "title_field": "employee_name"
+ "title_field": "employee_name",
+ "track_changes": 1
 }
\ No newline at end of file
diff --git a/erpnext/hr/doctype/shift_assignment/shift_assignment.py b/erpnext/hr/doctype/shift_assignment/shift_assignment.py
index f6bd159..0b21c00 100644
--- a/erpnext/hr/doctype/shift_assignment/shift_assignment.py
+++ b/erpnext/hr/doctype/shift_assignment/shift_assignment.py
@@ -3,83 +3,120 @@
 
 
 from datetime import datetime, timedelta
+from typing import Dict, List
 
 import frappe
 from frappe import _
 from frappe.model.document import Document
-from frappe.utils import cstr, getdate, now_datetime, nowdate
+from frappe.query_builder import Criterion
+from frappe.utils import cstr, get_datetime, get_link_to_form, get_time, getdate, now_datetime
 
 from erpnext.hr.doctype.employee.employee import get_holiday_list_for_employee
 from erpnext.hr.doctype.holiday_list.holiday_list import is_holiday
 from erpnext.hr.utils import validate_active_employee
 
 
+class OverlappingShiftError(frappe.ValidationError):
+	pass
+
+
 class ShiftAssignment(Document):
 	def validate(self):
 		validate_active_employee(self.employee)
-		self.validate_overlapping_dates()
+		self.validate_overlapping_shifts()
 
 		if self.end_date:
 			self.validate_from_to_dates("start_date", "end_date")
 
-	def validate_overlapping_dates(self):
+	def validate_overlapping_shifts(self):
+		overlapping_dates = self.get_overlapping_dates()
+		if len(overlapping_dates):
+			# if dates are overlapping, check if timings are overlapping, else allow
+			overlapping_timings = has_overlapping_timings(self.shift_type, overlapping_dates[0].shift_type)
+			if overlapping_timings:
+				self.throw_overlap_error(overlapping_dates[0])
+
+	def get_overlapping_dates(self):
 		if not self.name:
 			self.name = "New Shift Assignment"
 
-		condition = """and (
-				end_date is null
-				or
-					%(start_date)s between start_date and end_date
-		"""
-
-		if self.end_date:
-			condition += """ or
-					%(end_date)s between start_date and end_date
-					or
-					start_date between %(start_date)s and %(end_date)s
-				) """
-		else:
-			condition += """ ) """
-
-		assigned_shifts = frappe.db.sql(
-			"""
-			select name, shift_type, start_date ,end_date, docstatus, status
-			from `tabShift Assignment`
-			where
-				employee=%(employee)s and docstatus = 1
-				and name != %(name)s
-				and status = "Active"
-				{0}
-		""".format(
-				condition
-			),
-			{
-				"employee": self.employee,
-				"shift_type": self.shift_type,
-				"start_date": self.start_date,
-				"end_date": self.end_date,
-				"name": self.name,
-			},
-			as_dict=1,
+		shift = frappe.qb.DocType("Shift Assignment")
+		query = (
+			frappe.qb.from_(shift)
+			.select(shift.name, shift.shift_type, shift.docstatus, shift.status)
+			.where(
+				(shift.employee == self.employee)
+				& (shift.docstatus == 1)
+				& (shift.name != self.name)
+				& (shift.status == "Active")
+			)
 		)
 
-		if len(assigned_shifts):
-			self.throw_overlap_error(assigned_shifts[0])
+		if self.end_date:
+			query = query.where(
+				Criterion.any(
+					[
+						Criterion.any(
+							[
+								shift.end_date.isnull(),
+								((self.start_date >= shift.start_date) & (self.start_date <= shift.end_date)),
+							]
+						),
+						Criterion.any(
+							[
+								((self.end_date >= shift.start_date) & (self.end_date <= shift.end_date)),
+								shift.start_date.between(self.start_date, self.end_date),
+							]
+						),
+					]
+				)
+			)
+		else:
+			query = query.where(
+				shift.end_date.isnull()
+				| ((self.start_date >= shift.start_date) & (self.start_date <= shift.end_date))
+			)
+
+		return query.run(as_dict=True)
 
 	def throw_overlap_error(self, shift_details):
 		shift_details = frappe._dict(shift_details)
 		if shift_details.docstatus == 1 and shift_details.status == "Active":
-			msg = _("Employee {0} already has Active Shift {1}: {2}").format(
-				frappe.bold(self.employee), frappe.bold(self.shift_type), frappe.bold(shift_details.name)
+			msg = _(
+				"Employee {0} already has an active Shift {1}: {2} that overlaps within this period."
+			).format(
+				frappe.bold(self.employee),
+				frappe.bold(shift_details.shift_type),
+				get_link_to_form("Shift Assignment", shift_details.name),
 			)
-		if shift_details.start_date:
-			msg += " " + _("from {0}").format(getdate(self.start_date).strftime("%d-%m-%Y"))
-			title = "Ongoing Shift"
-			if shift_details.end_date:
-				msg += " " + _("to {0}").format(getdate(self.end_date).strftime("%d-%m-%Y"))
-				title = "Active Shift"
-		if msg:
-			frappe.throw(msg, title=title)
+			frappe.throw(msg, title=_("Overlapping Shifts"), exc=OverlappingShiftError)
+
+
+def has_overlapping_timings(shift_1: str, shift_2: str) -> bool:
+	"""
+	Accepts two shift types and checks whether their timings are overlapping
+	"""
+	curr_shift = frappe.db.get_value("Shift Type", shift_1, ["start_time", "end_time"], as_dict=True)
+	overlapping_shift = frappe.db.get_value(
+		"Shift Type", shift_2, ["start_time", "end_time"], as_dict=True
+	)
+
+	if (
+		(
+			curr_shift.start_time > overlapping_shift.start_time
+			and curr_shift.start_time < overlapping_shift.end_time
+		)
+		or (
+			curr_shift.end_time > overlapping_shift.start_time
+			and curr_shift.end_time < overlapping_shift.end_time
+		)
+		or (
+			curr_shift.start_time <= overlapping_shift.start_time
+			and curr_shift.end_time >= overlapping_shift.end_time
+		)
+	):
+		return True
+	return False
 
 
 @frappe.whitelist()
@@ -155,102 +192,195 @@
 	return shift_timing_map
 
 
+def get_shift_for_time(shifts: List[Dict], for_timestamp: datetime) -> Dict:
+	"""Returns shift with details for given timestamp"""
+	valid_shifts = []
+
+	for entry in shifts:
+		shift_details = get_shift_details(entry.shift_type, for_timestamp=for_timestamp)
+
+		if (
+			get_datetime(shift_details.actual_start)
+			<= get_datetime(for_timestamp)
+			<= get_datetime(shift_details.actual_end)
+		):
+			valid_shifts.append(shift_details)
+
+	valid_shifts.sort(key=lambda x: x["actual_start"])
+
+	if len(valid_shifts) > 1:
+		for i in range(len(valid_shifts) - 1):
+			# comparing 2 consecutive shifts and adjusting start and end times
+			# if they are overlapping within grace period
+			curr_shift = valid_shifts[i]
+			next_shift = valid_shifts[i + 1]
+
+			if curr_shift and next_shift:
+				next_shift.actual_start = (
+					curr_shift.end_datetime
+					if next_shift.actual_start < curr_shift.end_datetime
+					else next_shift.actual_start
+				)
+				curr_shift.actual_end = (
+					next_shift.actual_start
+					if curr_shift.actual_end > next_shift.actual_start
+					else curr_shift.actual_end
+				)
+
+			valid_shifts[i] = curr_shift
+			valid_shifts[i + 1] = next_shift
+
+		return get_exact_shift(valid_shifts, for_timestamp) or {}
+
+	return (valid_shifts and valid_shifts[0]) or {}
+
+
+def get_shifts_for_date(employee: str, for_timestamp: datetime) -> List[Dict[str, str]]:
+	"""Returns list of shifts with details for given date"""
+	assignment = frappe.qb.DocType("Shift Assignment")
+
+	return (
+		frappe.qb.from_(assignment)
+		.select(assignment.name, assignment.shift_type)
+		.where(
+			(assignment.employee == employee)
+			& (assignment.docstatus == 1)
+			& (assignment.status == "Active")
+			& (assignment.start_date <= getdate(for_timestamp.date()))
+			& (
+				Criterion.any(
+					[
+						assignment.end_date.isnull(),
+						(assignment.end_date.isnotnull() & (getdate(for_timestamp.date()) >= assignment.end_date)),
+					]
+				)
+			)
+		)
+	).run(as_dict=True)
+
+
+def get_shift_for_timestamp(employee: str, for_timestamp: datetime) -> Dict:
+	shifts = get_shifts_for_date(employee, for_timestamp)
+	if shifts:
+		return get_shift_for_time(shifts, for_timestamp)
+	return {}
+
+
 def get_employee_shift(
-	employee, for_date=None, consider_default_shift=False, next_shift_direction=None
-):
+	employee: str,
+	for_timestamp: datetime = None,
+	consider_default_shift: bool = False,
+	next_shift_direction: str = None,
+) -> Dict:
 	"""Returns a Shift Type for the given employee on the given date. (excluding the holidays)
 
 	:param employee: Employee for which shift is required.
-	:param for_date: Date on which shift are required
+	:param for_timestamp: DateTime on which shift is required
 	:param consider_default_shift: If set to true, default shift is taken when no shift assignment is found.
 	:param next_shift_direction: One of: None, 'forward', 'reverse'. Direction to look for next shift if shift not found on given date.
 	"""
-	if for_date is None:
-		for_date = nowdate()
+	if for_timestamp is None:
+		for_timestamp = now_datetime()
+
+	shift_details = get_shift_for_timestamp(employee, for_timestamp)
+
+	# if shift assignment is not found, consider default shift
 	default_shift = frappe.db.get_value("Employee", employee, "default_shift")
-	shift_type_name = None
-	shift_assignment_details = frappe.db.get_value(
-		"Shift Assignment",
-		{"employee": employee, "start_date": ("<=", for_date), "docstatus": "1", "status": "Active"},
-		["shift_type", "end_date"],
+	if not shift_details and consider_default_shift:
+		shift_details = get_shift_details(default_shift, for_timestamp)
+
+	# if its a holiday, reset
+	if shift_details and is_holiday_date(employee, shift_details):
+		shift_details = None
+
+	# if no shift is found, find next or prev shift assignment based on direction
+	if not shift_details and next_shift_direction:
+		shift_details = get_prev_or_next_shift(
+			employee, for_timestamp, consider_default_shift, default_shift, next_shift_direction
+		)
+
+	return shift_details or {}
+
+
+def get_prev_or_next_shift(
+	employee: str,
+	for_timestamp: datetime,
+	consider_default_shift: bool,
+	default_shift: str,
+	next_shift_direction: str,
+) -> Dict:
+	"""Returns a dict of shift details for the next or prev shift based on the next_shift_direction"""
+	MAX_DAYS = 366
+	shift_details = {}
+
+	if consider_default_shift and default_shift:
+		direction = -1 if next_shift_direction == "reverse" else 1
+		for i in range(MAX_DAYS):
+			date = for_timestamp + timedelta(days=direction * (i + 1))
+			shift_details = get_employee_shift(employee, date, consider_default_shift, None)
+			if shift_details:
+				break
+	else:
+		direction = "<" if next_shift_direction == "reverse" else ">"
+		sort_order = "desc" if next_shift_direction == "reverse" else "asc"
+		dates = frappe.db.get_all(
+			"Shift Assignment",
+			["start_date", "end_date"],
+			{
+				"employee": employee,
+				"start_date": (direction, for_timestamp.date()),
+				"docstatus": 1,
+				"status": "Active",
+			},
+			as_list=True,
+			limit=MAX_DAYS,
+			order_by="start_date " + sort_order,
+		)
+
+		if dates:
+			for date in dates:
+				if date[1] and date[1] < for_timestamp.date():
+					continue
+				shift_details = get_employee_shift(
+					employee, datetime.combine(date[0], for_timestamp.time()), consider_default_shift, None
+				)
+				if shift_details:
+					break
+
+	return shift_details or {}
+
+
+def is_holiday_date(employee: str, shift_details: Dict) -> bool:
+	holiday_list_name = frappe.db.get_value(
+		"Shift Type", shift_details.shift_type.name, "holiday_list"
 	)
 
-	if shift_assignment_details:
-		shift_type_name = shift_assignment_details[0]
+	if not holiday_list_name:
+		holiday_list_name = get_holiday_list_for_employee(employee, False)
 
-		# if end_date present means that shift is over after end_date else it is a ongoing shift.
-		if shift_assignment_details[1] and for_date >= shift_assignment_details[1]:
-			shift_type_name = None
-
-	if not shift_type_name and consider_default_shift:
-		shift_type_name = default_shift
-	if shift_type_name:
-		holiday_list_name = frappe.db.get_value("Shift Type", shift_type_name, "holiday_list")
-		if not holiday_list_name:
-			holiday_list_name = get_holiday_list_for_employee(employee, False)
-		if holiday_list_name and is_holiday(holiday_list_name, for_date):
-			shift_type_name = None
-
-	if not shift_type_name and next_shift_direction:
-		MAX_DAYS = 366
-		if consider_default_shift and default_shift:
-			direction = -1 if next_shift_direction == "reverse" else +1
-			for i in range(MAX_DAYS):
-				date = for_date + timedelta(days=direction * (i + 1))
-				shift_details = get_employee_shift(employee, date, consider_default_shift, None)
-				if shift_details:
-					shift_type_name = shift_details.shift_type.name
-					for_date = date
-					break
-		else:
-			direction = "<" if next_shift_direction == "reverse" else ">"
-			sort_order = "desc" if next_shift_direction == "reverse" else "asc"
-			dates = frappe.db.get_all(
-				"Shift Assignment",
-				["start_date", "end_date"],
-				{
-					"employee": employee,
-					"start_date": (direction, for_date),
-					"docstatus": "1",
-					"status": "Active",
-				},
-				as_list=True,
-				limit=MAX_DAYS,
-				order_by="start_date " + sort_order,
-			)
-
-			if dates:
-				for date in dates:
-					if date[1] and date[1] < for_date:
-						continue
-					shift_details = get_employee_shift(employee, date[0], consider_default_shift, None)
-					if shift_details:
-						shift_type_name = shift_details.shift_type.name
-						for_date = date[0]
-						break
-
-	return get_shift_details(shift_type_name, for_date)
+	return holiday_list_name and is_holiday(holiday_list_name, shift_details.start_datetime.date())
 
 
-def get_employee_shift_timings(employee, for_timestamp=None, consider_default_shift=False):
+def get_employee_shift_timings(
+	employee: str, for_timestamp: datetime = None, consider_default_shift: bool = False
+) -> List[Dict]:
 	"""Returns previous shift, current/upcoming shift, next_shift for the given timestamp and employee"""
 	if for_timestamp is None:
 		for_timestamp = now_datetime()
+
 	# write and verify a test case for midnight shift.
 	prev_shift = curr_shift = next_shift = None
-	curr_shift = get_employee_shift(employee, for_timestamp.date(), consider_default_shift, "forward")
+	curr_shift = get_employee_shift(employee, for_timestamp, consider_default_shift, "forward")
 	if curr_shift:
 		next_shift = get_employee_shift(
-			employee,
-			curr_shift.start_datetime.date() + timedelta(days=1),
-			consider_default_shift,
-			"forward",
+			employee, curr_shift.start_datetime + timedelta(days=1), consider_default_shift, "forward"
 		)
 	prev_shift = get_employee_shift(
-		employee, for_timestamp.date() + timedelta(days=-1), consider_default_shift, "reverse"
+		employee, for_timestamp + timedelta(days=-1), consider_default_shift, "reverse"
 	)
 
 	if curr_shift:
+		# adjust actual start and end times if they are overlapping with grace period (before start and after end)
 		if prev_shift:
 			curr_shift.actual_start = (
 				prev_shift.end_datetime
@@ -273,31 +403,102 @@
 				if curr_shift.actual_end > next_shift.actual_start
 				else curr_shift.actual_end
 			)
+
 	return prev_shift, curr_shift, next_shift
 
 
-def get_shift_details(shift_type_name, for_date=None):
-	"""Returns Shift Details which contain some additional information as described below.
-	'shift_details' contains the following keys:
-	        'shift_type' - Object of DocType Shift Type,
-	        'start_datetime' - Date and Time of shift start on given date,
-	        'end_datetime' - Date and Time of shift end on given date,
-	        'actual_start' - datetime of shift start after adding 'begin_check_in_before_shift_start_time',
-	        'actual_end' - datetime of shift end after adding 'allow_check_out_after_shift_end_time'(None is returned if this is zero)
+def get_actual_start_end_datetime_of_shift(
+	employee: str, for_timestamp: datetime, consider_default_shift: bool = False
+) -> Dict:
+	"""Returns a Dict containing shift details with actual_start and actual_end datetime values
+	Here 'actual' means taking into account the "begin_check_in_before_shift_start_time" and "allow_check_out_after_shift_end_time".
+	Empty Dict is returned if the timestamp is outside any actual shift timings.
 
-	:param shift_type_name: shift type name for which shift_details is required.
-	:param for_date: Date on which shift_details are required
+	:param employee (str): Employee name
+	:param for_timestamp (datetime, optional): Datetime value of checkin, if not provided considers current datetime
+	:param consider_default_shift (bool, optional): Flag (defaults to False) to specify whether to consider
+	default shift in employee master if no shift assignment is found
+	"""
+	shift_timings_as_per_timestamp = get_employee_shift_timings(
+		employee, for_timestamp, consider_default_shift
+	)
+	return get_exact_shift(shift_timings_as_per_timestamp, for_timestamp)
+
+
+def get_exact_shift(shifts: List, for_timestamp: datetime) -> Dict:
+	"""Returns the shift details (dict) for the exact shift in which the 'for_timestamp' value falls among multiple shifts"""
+	shift_details = dict()
+	timestamp_list = []
+
+	for shift in shifts:
+		if shift:
+			timestamp_list.extend([shift.actual_start, shift.actual_end])
+		else:
+			timestamp_list.extend([None, None])
+
+	timestamp_index = None
+	for index, timestamp in enumerate(timestamp_list):
+		if not timestamp:
+			continue
+
+		if for_timestamp < timestamp:
+			timestamp_index = index
+		elif for_timestamp == timestamp:
+			# on timestamp boundary
+			if index % 2 == 1:
+				timestamp_index = index
+			else:
+				timestamp_index = index + 1
+
+		if timestamp_index:
+			break
+
+	if timestamp_index and timestamp_index % 2 == 1:
+		shift_details = shifts[int((timestamp_index - 1) / 2)]
+
+	return shift_details
+
+
+def get_shift_details(shift_type_name: str, for_timestamp: datetime = None) -> Dict:
+	"""Returns a Dict containing shift details with the following data:
+	'shift_type' - Object of DocType Shift Type,
+	'start_datetime' - datetime of shift start on given timestamp,
+	'end_datetime' - datetime of shift end on given timestamp,
+	'actual_start' - datetime of shift start after adding 'begin_check_in_before_shift_start_time',
+	'actual_end' - datetime of shift end after adding 'allow_check_out_after_shift_end_time' (None is returned if this is zero)
+
+	:param shift_type_name (str): shift type name for which shift_details are required.
+	:param for_timestamp (datetime, optional): Datetime value of checkin, if not provided considers current datetime
 	"""
 	if not shift_type_name:
-		return None
-	if not for_date:
-		for_date = nowdate()
+		return {}
+
+	if for_timestamp is None:
+		for_timestamp = now_datetime()
+
 	shift_type = frappe.get_doc("Shift Type", shift_type_name)
-	start_datetime = datetime.combine(for_date, datetime.min.time()) + shift_type.start_time
-	for_date = (
-		for_date + timedelta(days=1) if shift_type.start_time > shift_type.end_time else for_date
+	shift_actual_start = shift_type.start_time - timedelta(
+		minutes=shift_type.begin_check_in_before_shift_start_time
 	)
-	end_datetime = datetime.combine(for_date, datetime.min.time()) + shift_type.end_time
+
+	if shift_type.start_time > shift_type.end_time:
+		# shift spans accross 2 different days
+		if get_time(for_timestamp.time()) >= get_time(shift_actual_start):
+			# if for_timestamp is greater than start time, it's within the first day
+			start_datetime = datetime.combine(for_timestamp, datetime.min.time()) + shift_type.start_time
+			for_timestamp = for_timestamp + timedelta(days=1)
+			end_datetime = datetime.combine(for_timestamp, datetime.min.time()) + shift_type.end_time
+
+		elif get_time(for_timestamp.time()) < get_time(shift_actual_start):
+			# if for_timestamp is less than start time, it's within the second day
+			end_datetime = datetime.combine(for_timestamp, datetime.min.time()) + shift_type.end_time
+			for_timestamp = for_timestamp + timedelta(days=-1)
+			start_datetime = datetime.combine(for_timestamp, datetime.min.time()) + shift_type.start_time
+	else:
+		# start and end timings fall on the same day
+		start_datetime = datetime.combine(for_timestamp, datetime.min.time()) + shift_type.start_time
+		end_datetime = datetime.combine(for_timestamp, datetime.min.time()) + shift_type.end_time
+
 	actual_start = start_datetime - timedelta(
 		minutes=shift_type.begin_check_in_before_shift_start_time
 	)
@@ -312,34 +513,3 @@
 			"actual_end": actual_end,
 		}
 	)
-
-
-def get_actual_start_end_datetime_of_shift(employee, for_datetime, consider_default_shift=False):
-	"""Takes a datetime and returns the 'actual' start datetime and end datetime of the shift in which the timestamp belongs.
-	Here 'actual' means - taking in to account the "begin_check_in_before_shift_start_time" and "allow_check_out_after_shift_end_time".
-	None is returned if the timestamp is outside any actual shift timings.
-	Shift Details is also returned(current/upcoming i.e. if timestamp not in any actual shift then details of next shift returned)
-	"""
-	actual_shift_start = actual_shift_end = shift_details = None
-	shift_timings_as_per_timestamp = get_employee_shift_timings(
-		employee, for_datetime, consider_default_shift
-	)
-	timestamp_list = []
-	for shift in shift_timings_as_per_timestamp:
-		if shift:
-			timestamp_list.extend([shift.actual_start, shift.actual_end])
-		else:
-			timestamp_list.extend([None, None])
-	timestamp_index = None
-	for index, timestamp in enumerate(timestamp_list):
-		if timestamp and for_datetime <= timestamp:
-			timestamp_index = index
-			break
-	if timestamp_index and timestamp_index % 2 == 1:
-		shift_details = shift_timings_as_per_timestamp[int((timestamp_index - 1) / 2)]
-		actual_shift_start = shift_details.actual_start
-		actual_shift_end = shift_details.actual_end
-	elif timestamp_index:
-		shift_details = shift_timings_as_per_timestamp[int(timestamp_index / 2)]
-
-	return actual_shift_start, actual_shift_end, shift_details
diff --git a/erpnext/hr/doctype/shift_assignment/test_shift_assignment.py b/erpnext/hr/doctype/shift_assignment/test_shift_assignment.py
index 4a1ec29..0fe9108 100644
--- a/erpnext/hr/doctype/shift_assignment/test_shift_assignment.py
+++ b/erpnext/hr/doctype/shift_assignment/test_shift_assignment.py
@@ -4,16 +4,23 @@
 import unittest
 
 import frappe
-from frappe.utils import add_days, nowdate
+from frappe.tests.utils import FrappeTestCase
+from frappe.utils import add_days, getdate, nowdate
+
+from erpnext.hr.doctype.employee.test_employee import make_employee
+from erpnext.hr.doctype.shift_assignment.shift_assignment import OverlappingShiftError
+from erpnext.hr.doctype.shift_type.test_shift_type import make_shift_assignment, setup_shift_type
 
 test_dependencies = ["Shift Type"]
 
 
-class TestShiftAssignment(unittest.TestCase):
+class TestShiftAssignment(FrappeTestCase):
 	def setUp(self):
-		frappe.db.sql("delete from `tabShift Assignment`")
+		frappe.db.delete("Shift Assignment")
+		frappe.db.delete("Shift Type")
 
 	def test_make_shift_assignment(self):
+		setup_shift_type(shift_type="Day Shift")
 		shift_assignment = frappe.get_doc(
 			{
 				"doctype": "Shift Assignment",
@@ -29,7 +36,7 @@
 
 	def test_overlapping_for_ongoing_shift(self):
 		# shift should be Ongoing if Only start_date is present and status = Active
-
+		setup_shift_type(shift_type="Day Shift")
 		shift_assignment_1 = frappe.get_doc(
 			{
 				"doctype": "Shift Assignment",
@@ -54,11 +61,11 @@
 			}
 		)
 
-		self.assertRaises(frappe.ValidationError, shift_assignment.save)
+		self.assertRaises(OverlappingShiftError, shift_assignment.save)
 
 	def test_overlapping_for_fixed_period_shift(self):
 		# shift should is for Fixed period if Only start_date and end_date both are present and status = Active
-
+		setup_shift_type(shift_type="Day Shift")
 		shift_assignment_1 = frappe.get_doc(
 			{
 				"doctype": "Shift Assignment",
@@ -85,4 +92,65 @@
 			}
 		)
 
-		self.assertRaises(frappe.ValidationError, shift_assignment_3.save)
+		self.assertRaises(OverlappingShiftError, shift_assignment_3.save)
+
+	def test_overlapping_for_a_fixed_period_shift_and_ongoing_shift(self):
+		employee = make_employee("test_shift_assignment@example.com", company="_Test Company")
+
+		# shift setup for 8-12
+		shift_type = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="12:00:00")
+		date = getdate()
+		# shift with end date
+		make_shift_assignment(shift_type.name, employee, date, add_days(date, 30))
+
+		# shift setup for 11-15
+		shift_type = setup_shift_type(shift_type="Shift 2", start_time="11:00:00", end_time="15:00:00")
+		date = getdate()
+
+		# shift assignment without end date
+		shift2 = frappe.get_doc(
+			{
+				"doctype": "Shift Assignment",
+				"shift_type": shift_type.name,
+				"company": "_Test Company",
+				"employee": employee,
+				"start_date": date,
+			}
+		)
+		self.assertRaises(OverlappingShiftError, shift2.insert)
+
+	def test_overlap_validation_for_shifts_on_same_day_with_overlapping_timeslots(self):
+		employee = make_employee("test_shift_assignment@example.com", company="_Test Company")
+
+		# shift setup for 8-12
+		shift_type = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="12:00:00")
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		# shift setup for 11-15
+		shift_type = setup_shift_type(shift_type="Shift 2", start_time="11:00:00", end_time="15:00:00")
+		date = getdate()
+
+		shift2 = frappe.get_doc(
+			{
+				"doctype": "Shift Assignment",
+				"shift_type": shift_type.name,
+				"company": "_Test Company",
+				"employee": employee,
+				"start_date": date,
+			}
+		)
+		self.assertRaises(OverlappingShiftError, shift2.insert)
+
+	def test_multiple_shift_assignments_for_same_day(self):
+		employee = make_employee("test_shift_assignment@example.com", company="_Test Company")
+
+		# shift setup for 8-12
+		shift_type = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="12:00:00")
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		# shift setup for 13-15
+		shift_type = setup_shift_type(shift_type="Shift 2", start_time="13:00:00", end_time="15:00:00")
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
diff --git a/erpnext/hr/doctype/shift_request/shift_request.py b/erpnext/hr/doctype/shift_request/shift_request.py
index b5beef7..2bee240 100644
--- a/erpnext/hr/doctype/shift_request/shift_request.py
+++ b/erpnext/hr/doctype/shift_request/shift_request.py
@@ -5,12 +5,14 @@
 import frappe
 from frappe import _
 from frappe.model.document import Document
-from frappe.utils import formatdate, getdate
+from frappe.query_builder import Criterion
+from frappe.utils import get_link_to_form, getdate
 
+from erpnext.hr.doctype.shift_assignment.shift_assignment import has_overlapping_timings
 from erpnext.hr.utils import share_doc_with_approver, validate_active_employee
 
 
-class OverlapError(frappe.ValidationError):
+class OverlappingShiftRequestError(frappe.ValidationError):
 	pass
 
 
@@ -18,7 +20,7 @@
 	def validate(self):
 		validate_active_employee(self.employee)
 		self.validate_dates()
-		self.validate_shift_request_overlap_dates()
+		self.validate_overlapping_shift_requests()
 		self.validate_approver()
 		self.validate_default_shift()
 
@@ -79,37 +81,60 @@
 		if self.from_date and self.to_date and (getdate(self.to_date) < getdate(self.from_date)):
 			frappe.throw(_("To date cannot be before from date"))
 
-	def validate_shift_request_overlap_dates(self):
+	def validate_overlapping_shift_requests(self):
+		overlapping_dates = self.get_overlapping_dates()
+		if len(overlapping_dates):
+			# if dates are overlapping, check if timings are overlapping, else allow
+			overlapping_timings = has_overlapping_timings(self.shift_type, overlapping_dates[0].shift_type)
+			if overlapping_timings:
+				self.throw_overlap_error(overlapping_dates[0])
+
+	def get_overlapping_dates(self):
 		if not self.name:
 			self.name = "New Shift Request"
 
-		d = frappe.db.sql(
-			"""
-				select
-					name, shift_type, from_date, to_date
-				from `tabShift Request`
-				where employee = %(employee)s and docstatus < 2
-				and ((%(from_date)s >= from_date
-					and %(from_date)s <= to_date) or
-					( %(to_date)s >= from_date
-					and %(to_date)s <= to_date ))
-				and name != %(name)s""",
-			{
-				"employee": self.employee,
-				"shift_type": self.shift_type,
-				"from_date": self.from_date,
-				"to_date": self.to_date,
-				"name": self.name,
-			},
-			as_dict=1,
+		shift = frappe.qb.DocType("Shift Request")
+		query = (
+			frappe.qb.from_(shift)
+			.select(shift.name, shift.shift_type)
+			.where((shift.employee == self.employee) & (shift.docstatus < 2) & (shift.name != self.name))
 		)
 
-		for date_overlap in d:
-			if date_overlap["name"]:
-				self.throw_overlap_error(date_overlap)
+		if self.to_date:
+			query = query.where(
+				Criterion.any(
+					[
+						Criterion.any(
+							[
+								shift.to_date.isnull(),
+								((self.from_date >= shift.from_date) & (self.from_date <= shift.to_date)),
+							]
+						),
+						Criterion.any(
+							[
+								((self.to_date >= shift.from_date) & (self.to_date <= shift.to_date)),
+								shift.from_date.between(self.from_date, self.to_date),
+							]
+						),
+					]
+				)
+			)
+		else:
+			query = query.where(
+				shift.to_date.isnull()
+				| ((self.from_date >= shift.from_date) & (self.from_date <= shift.to_date))
+			)
 
-	def throw_overlap_error(self, d):
-		msg = _("Employee {0} has already applied for {1} between {2} and {3}").format(
-			self.employee, d["shift_type"], formatdate(d["from_date"]), formatdate(d["to_date"])
-		) + """ : <b><a href="/app/Form/Shift Request/{0}">{0}</a></b>""".format(d["name"])
-		frappe.throw(msg, OverlapError)
+		return query.run(as_dict=True)
+
+	def throw_overlap_error(self, shift_details):
+		shift_details = frappe._dict(shift_details)
+		msg = _(
+			"Employee {0} has already applied for Shift {1}: {2} that overlaps within this period"
+		).format(
+			frappe.bold(self.employee),
+			frappe.bold(shift_details.shift_type),
+			get_link_to_form("Shift Request", shift_details.name),
+		)
+
+		frappe.throw(msg, title=_("Overlapping Shift Requests"), exc=OverlappingShiftRequestError)
diff --git a/erpnext/hr/doctype/shift_request/test_shift_request.py b/erpnext/hr/doctype/shift_request/test_shift_request.py
index b4f5177..c47418c 100644
--- a/erpnext/hr/doctype/shift_request/test_shift_request.py
+++ b/erpnext/hr/doctype/shift_request/test_shift_request.py
@@ -4,23 +4,24 @@
 import unittest
 
 import frappe
+from frappe.tests.utils import FrappeTestCase
 from frappe.utils import add_days, nowdate
 
 from erpnext.hr.doctype.employee.test_employee import make_employee
+from erpnext.hr.doctype.shift_request.shift_request import OverlappingShiftRequestError
+from erpnext.hr.doctype.shift_type.test_shift_type import setup_shift_type
 
 test_dependencies = ["Shift Type"]
 
 
-class TestShiftRequest(unittest.TestCase):
+class TestShiftRequest(FrappeTestCase):
 	def setUp(self):
-		for doctype in ["Shift Request", "Shift Assignment"]:
-			frappe.db.sql("delete from `tab{doctype}`".format(doctype=doctype))
-
-	def tearDown(self):
-		frappe.db.rollback()
+		for doctype in ["Shift Request", "Shift Assignment", "Shift Type"]:
+			frappe.db.delete(doctype)
 
 	def test_make_shift_request(self):
 		"Test creation/updation of Shift Assignment from Shift Request."
+		setup_shift_type(shift_type="Day Shift")
 		department = frappe.get_value("Employee", "_T-Employee-00001", "department")
 		set_shift_approver(department)
 		approver = frappe.db.sql(
@@ -48,6 +49,7 @@
 		self.assertEqual(shift_assignment_docstatus, 2)
 
 	def test_shift_request_approver_perms(self):
+		setup_shift_type(shift_type="Day Shift")
 		employee = frappe.get_doc("Employee", "_T-Employee-00001")
 		user = "test_approver_perm_emp@example.com"
 		make_employee(user, "_Test Company")
@@ -87,6 +89,145 @@
 		employee.shift_request_approver = ""
 		employee.save()
 
+	def test_overlap_for_request_without_to_date(self):
+		# shift should be Ongoing if Only from_date is present
+		user = "test_shift_request@example.com"
+		employee = make_employee(user, company="_Test Company", shift_request_approver=user)
+		setup_shift_type(shift_type="Day Shift")
+
+		shift_request = frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": "Day Shift",
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": nowdate(),
+				"approver": user,
+				"status": "Approved",
+			}
+		).submit()
+
+		shift_request = frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": "Day Shift",
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": add_days(nowdate(), 2),
+				"approver": user,
+				"status": "Approved",
+			}
+		)
+
+		self.assertRaises(OverlappingShiftRequestError, shift_request.save)
+
+	def test_overlap_for_request_with_from_and_to_dates(self):
+		user = "test_shift_request@example.com"
+		employee = make_employee(user, company="_Test Company", shift_request_approver=user)
+		setup_shift_type(shift_type="Day Shift")
+
+		shift_request = frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": "Day Shift",
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": nowdate(),
+				"to_date": add_days(nowdate(), 30),
+				"approver": user,
+				"status": "Approved",
+			}
+		).submit()
+
+		shift_request = frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": "Day Shift",
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": add_days(nowdate(), 10),
+				"to_date": add_days(nowdate(), 35),
+				"approver": user,
+				"status": "Approved",
+			}
+		)
+
+		self.assertRaises(OverlappingShiftRequestError, shift_request.save)
+
+	def test_overlapping_for_a_fixed_period_shift_and_ongoing_shift(self):
+		user = "test_shift_request@example.com"
+		employee = make_employee(user, company="_Test Company", shift_request_approver=user)
+
+		# shift setup for 8-12
+		shift_type = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="12:00:00")
+		date = nowdate()
+
+		# shift with end date
+		frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": shift_type.name,
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": date,
+				"to_date": add_days(date, 30),
+				"approver": user,
+				"status": "Approved",
+			}
+		).submit()
+
+		# shift setup for 11-15
+		shift_type = setup_shift_type(shift_type="Shift 2", start_time="11:00:00", end_time="15:00:00")
+		shift2 = frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": shift_type.name,
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": date,
+				"approver": user,
+				"status": "Approved",
+			}
+		)
+
+		self.assertRaises(OverlappingShiftRequestError, shift2.insert)
+
+	def test_allow_non_overlapping_shift_requests_for_same_day(self):
+		user = "test_shift_request@example.com"
+		employee = make_employee(user, company="_Test Company", shift_request_approver=user)
+
+		# shift setup for 8-12
+		shift_type = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="12:00:00")
+		date = nowdate()
+
+		# shift with end date
+		frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": shift_type.name,
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": date,
+				"to_date": add_days(date, 30),
+				"approver": user,
+				"status": "Approved",
+			}
+		).submit()
+
+		# shift setup for 13-15
+		shift_type = setup_shift_type(shift_type="Shift 2", start_time="13:00:00", end_time="15:00:00")
+		frappe.get_doc(
+			{
+				"doctype": "Shift Request",
+				"shift_type": shift_type.name,
+				"company": "_Test Company",
+				"employee": employee,
+				"from_date": date,
+				"approver": user,
+				"status": "Approved",
+			}
+		).submit()
+
 
 def set_shift_approver(department):
 	department_doc = frappe.get_doc("Department", department)
diff --git a/erpnext/hr/doctype/shift_type/shift_type.py b/erpnext/hr/doctype/shift_type/shift_type.py
index 3f5cb22..5e214cf 100644
--- a/erpnext/hr/doctype/shift_type/shift_type.py
+++ b/erpnext/hr/doctype/shift_type/shift_type.py
@@ -3,21 +3,23 @@
 
 
 import itertools
-from datetime import timedelta
+from datetime import datetime, timedelta
 
 import frappe
 from frappe.model.document import Document
-from frappe.utils import cint, get_datetime, getdate
+from frappe.utils import cint, get_datetime, get_time, getdate
 
+from erpnext.buying.doctype.supplier_scorecard.supplier_scorecard import daterange
 from erpnext.hr.doctype.attendance.attendance import mark_attendance
 from erpnext.hr.doctype.employee.employee import get_holiday_list_for_employee
 from erpnext.hr.doctype.employee_checkin.employee_checkin import (
 	calculate_working_hours,
 	mark_attendance_and_link_log,
 )
+from erpnext.hr.doctype.holiday_list.holiday_list import is_holiday
 from erpnext.hr.doctype.shift_assignment.shift_assignment import (
-	get_actual_start_end_datetime_of_shift,
 	get_employee_shift,
+	get_shift_details,
 )
 
 
@@ -30,8 +32,9 @@
 			or not self.last_sync_of_checkin
 		):
 			return
+
 		filters = {
-			"skip_auto_attendance": "0",
+			"skip_auto_attendance": 0,
 			"attendance": ("is", "not set"),
 			"time": (">=", self.process_attendance_after),
 			"shift_actual_end": ("<", self.last_sync_of_checkin),
@@ -40,6 +43,7 @@
 		logs = frappe.db.get_list(
 			"Employee Checkin", fields="*", filters=filters, order_by="employee,time"
 		)
+
 		for key, group in itertools.groupby(
 			logs, key=lambda x: (x["employee"], x["shift_actual_start"])
 		):
@@ -52,6 +56,7 @@
 				in_time,
 				out_time,
 			) = self.get_attendance(single_shift_logs)
+
 			mark_attendance_and_link_log(
 				single_shift_logs,
 				attendance_status,
@@ -63,15 +68,16 @@
 				out_time,
 				self.name,
 			)
+
 		for employee in self.get_assigned_employee(self.process_attendance_after, True):
 			self.mark_absent_for_dates_with_no_attendance(employee)
 
 	def get_attendance(self, logs):
 		"""Return attendance_status, working_hours, late_entry, early_exit, in_time, out_time
 		for a set of logs belonging to a single shift.
-		Assumtion:
-		        1. These logs belongs to an single shift, single employee and is not in a holiday date.
-		        2. Logs are in chronological order
+		Assumptions:
+		1. These logs belongs to a single shift, single employee and it's not in a holiday date.
+		2. Logs are in chronological order
 		"""
 		late_entry = early_exit = False
 		total_working_hours, in_time, out_time = calculate_working_hours(
@@ -92,38 +98,67 @@
 			early_exit = True
 
 		if (
-			self.working_hours_threshold_for_absent
-			and total_working_hours < self.working_hours_threshold_for_absent
-		):
-			return "Absent", total_working_hours, late_entry, early_exit, in_time, out_time
-		if (
 			self.working_hours_threshold_for_half_day
 			and total_working_hours < self.working_hours_threshold_for_half_day
 		):
 			return "Half Day", total_working_hours, late_entry, early_exit, in_time, out_time
+		if (
+			self.working_hours_threshold_for_absent
+			and total_working_hours < self.working_hours_threshold_for_absent
+		):
+			return "Absent", total_working_hours, late_entry, early_exit, in_time, out_time
 		return "Present", total_working_hours, late_entry, early_exit, in_time, out_time
 
 	def mark_absent_for_dates_with_no_attendance(self, employee):
 		"""Marks Absents for the given employee on working days in this shift which have no attendance marked.
 		The Absent is marked starting from 'process_attendance_after' or employee creation date.
 		"""
+		start_date, end_date = self.get_start_and_end_dates(employee)
+
+		# no shift assignment found, no need to process absent attendance records
+		if start_date is None:
+			return
+
+		holiday_list_name = self.holiday_list
+		if not holiday_list_name:
+			holiday_list_name = get_holiday_list_for_employee(employee, False)
+
+		start_time = get_time(self.start_time)
+
+		for date in daterange(getdate(start_date), getdate(end_date)):
+			if is_holiday(holiday_list_name, date):
+				# skip marking absent on a holiday
+				continue
+
+			timestamp = datetime.combine(date, start_time)
+			shift_details = get_employee_shift(employee, timestamp, True)
+
+			if shift_details and shift_details.shift_type.name == self.name:
+				mark_attendance(employee, date, "Absent", self.name)
+
+	def get_start_and_end_dates(self, employee):
+		"""Returns start and end dates for checking attendance and marking absent
+		return: start date = max of `process_attendance_after` and DOJ
+		return: end date = min of shift before `last_sync_of_checkin` and Relieving Date
+		"""
 		date_of_joining, relieving_date, employee_creation = frappe.db.get_value(
 			"Employee", employee, ["date_of_joining", "relieving_date", "creation"]
 		)
+
 		if not date_of_joining:
 			date_of_joining = employee_creation.date()
+
 		start_date = max(getdate(self.process_attendance_after), date_of_joining)
-		actual_shift_datetime = get_actual_start_end_datetime_of_shift(
-			employee, get_datetime(self.last_sync_of_checkin), True
-		)
+		end_date = None
+
+		shift_details = get_shift_details(self.name, get_datetime(self.last_sync_of_checkin))
 		last_shift_time = (
-			actual_shift_datetime[0]
-			if actual_shift_datetime[0]
-			else get_datetime(self.last_sync_of_checkin)
+			shift_details.actual_start if shift_details else get_datetime(self.last_sync_of_checkin)
 		)
-		prev_shift = get_employee_shift(
-			employee, last_shift_time.date() - timedelta(days=1), True, "reverse"
-		)
+
+		# check if shift is found for 1 day before the last sync of checkin
+		# absentees are auto-marked 1 day after the shift to wait for any manual attendance records
+		prev_shift = get_employee_shift(employee, last_shift_time - timedelta(days=1), True, "reverse")
 		if prev_shift:
 			end_date = (
 				min(prev_shift.start_datetime.date(), relieving_date)
@@ -131,28 +166,21 @@
 				else prev_shift.start_datetime.date()
 			)
 		else:
-			return
-		holiday_list_name = self.holiday_list
-		if not holiday_list_name:
-			holiday_list_name = get_holiday_list_for_employee(employee, False)
-		dates = get_filtered_date_list(employee, start_date, end_date, holiday_list=holiday_list_name)
-		for date in dates:
-			shift_details = get_employee_shift(employee, date, True)
-			if shift_details and shift_details.shift_type.name == self.name:
-				mark_attendance(employee, date, "Absent", self.name)
+			# no shift found
+			return None, None
+		return start_date, end_date
 
 	def get_assigned_employee(self, from_date=None, consider_default_shift=False):
-		filters = {"start_date": (">", from_date), "shift_type": self.name, "docstatus": "1"}
-		if not from_date:
-			del filters["start_date"]
+		filters = {"shift_type": self.name, "docstatus": "1"}
+		if from_date:
+			filters["start_date"] = (">", from_date)
 
-		assigned_employees = frappe.get_all("Shift Assignment", "employee", filters, as_list=True)
-		assigned_employees = [x[0] for x in assigned_employees]
+		assigned_employees = frappe.get_all("Shift Assignment", filters=filters, pluck="employee")
 
 		if consider_default_shift:
 			filters = {"default_shift": self.name, "status": ["!=", "Inactive"]}
-			default_shift_employees = frappe.get_all("Employee", "name", filters, as_list=True)
-			default_shift_employees = [x[0] for x in default_shift_employees]
+			default_shift_employees = frappe.get_all("Employee", filters=filters, pluck="name")
+
 			return list(set(assigned_employees + default_shift_employees))
 		return assigned_employees
 
@@ -162,42 +190,3 @@
 	for shift in shift_list:
 		doc = frappe.get_doc("Shift Type", shift[0])
 		doc.process_auto_attendance()
-
-
-def get_filtered_date_list(
-	employee, start_date, end_date, filter_attendance=True, holiday_list=None
-):
-	"""Returns a list of dates after removing the dates with attendance and holidays"""
-	base_dates_query = """select adddate(%(start_date)s, t2.i*100 + t1.i*10 + t0.i) selected_date from
-		(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t0,
-		(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t1,
-		(select 0 i union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) t2"""
-	condition_query = ""
-	if filter_attendance:
-		condition_query += """ and a.selected_date not in (
-			select attendance_date from `tabAttendance`
-			where docstatus = 1 and employee = %(employee)s
-			and attendance_date between %(start_date)s and %(end_date)s)"""
-	if holiday_list:
-		condition_query += """ and a.selected_date not in (
-			select holiday_date from `tabHoliday` where parenttype = 'Holiday List' and
-    		parentfield = 'holidays' and parent = %(holiday_list)s
-    		and holiday_date between %(start_date)s and %(end_date)s)"""
-
-	dates = frappe.db.sql(
-		"""select * from
-		({base_dates_query}) as a
-		where a.selected_date <= %(end_date)s {condition_query}
-		""".format(
-			base_dates_query=base_dates_query, condition_query=condition_query
-		),
-		{
-			"employee": employee,
-			"start_date": start_date,
-			"end_date": end_date,
-			"holiday_list": holiday_list,
-		},
-		as_list=True,
-	)
-
-	return [getdate(date[0]) for date in dates]
diff --git a/erpnext/hr/doctype/shift_type/test_shift_type.py b/erpnext/hr/doctype/shift_type/test_shift_type.py
index 7d2f29c..0d75292 100644
--- a/erpnext/hr/doctype/shift_type/test_shift_type.py
+++ b/erpnext/hr/doctype/shift_type/test_shift_type.py
@@ -2,7 +2,381 @@
 # See license.txt
 
 import unittest
+from datetime import datetime, timedelta
+
+import frappe
+from frappe.tests.utils import FrappeTestCase
+from frappe.utils import add_days, get_time, get_year_ending, get_year_start, getdate, now_datetime
+
+from erpnext.hr.doctype.employee.test_employee import make_employee
+from erpnext.hr.doctype.holiday_list.test_holiday_list import set_holiday_list
+from erpnext.hr.doctype.leave_application.test_leave_application import get_first_sunday
+from erpnext.payroll.doctype.salary_slip.test_salary_slip import make_holiday_list
 
 
-class TestShiftType(unittest.TestCase):
-	pass
+class TestShiftType(FrappeTestCase):
+	def setUp(self):
+		frappe.db.delete("Shift Type")
+		frappe.db.delete("Shift Assignment")
+		frappe.db.delete("Employee Checkin")
+		frappe.db.delete("Attendance")
+
+		from_date = get_year_start(getdate())
+		to_date = get_year_ending(getdate())
+		self.holiday_list = make_holiday_list(from_date=from_date, to_date=to_date)
+
+	def test_mark_attendance(self):
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+
+		shift_type = setup_shift_type()
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("08:00:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_type.name)
+
+		timestamp = datetime.combine(date, get_time("12:00:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_type.name)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value(
+			"Attendance", {"shift": shift_type.name}, ["status", "name"], as_dict=True
+		)
+		self.assertEqual(attendance.status, "Present")
+
+	def test_entry_and_exit_grace(self):
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+
+		# doesn't mark late entry until 60 mins after shift start i.e. till 9
+		# doesn't mark late entry until 60 mins before shift end i.e. 11
+		shift_type = setup_shift_type(
+			enable_entry_grace_period=1,
+			enable_exit_grace_period=1,
+			late_entry_grace_period=60,
+			early_exit_grace_period=60,
+		)
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("09:30:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_type.name)
+
+		timestamp = datetime.combine(date, get_time("10:30:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_type.name)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value(
+			"Attendance",
+			{"shift": shift_type.name},
+			["status", "name", "late_entry", "early_exit"],
+			as_dict=True,
+		)
+		self.assertEqual(attendance.status, "Present")
+		self.assertEqual(attendance.late_entry, 1)
+		self.assertEqual(attendance.early_exit, 1)
+
+	def test_working_hours_threshold_for_half_day(self):
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_type = setup_shift_type(shift_type="Half Day Test", working_hours_threshold_for_half_day=2)
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("08:00:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_type.name)
+
+		timestamp = datetime.combine(date, get_time("09:30:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_type.name)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value(
+			"Attendance", {"shift": shift_type.name}, ["status", "working_hours"], as_dict=True
+		)
+		self.assertEqual(attendance.status, "Half Day")
+		self.assertEqual(attendance.working_hours, 1.5)
+
+	def test_working_hours_threshold_for_absent(self):
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_type = setup_shift_type(shift_type="Absent Test", working_hours_threshold_for_absent=2)
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("08:00:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_type.name)
+
+		timestamp = datetime.combine(date, get_time("09:30:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_type.name)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value(
+			"Attendance", {"shift": shift_type.name}, ["status", "working_hours"], as_dict=True
+		)
+		self.assertEqual(attendance.status, "Absent")
+		self.assertEqual(attendance.working_hours, 1.5)
+
+	def test_working_hours_threshold_for_absent_and_half_day_1(self):
+		# considers half day over absent
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_type = setup_shift_type(
+			shift_type="Half Day + Absent Test",
+			working_hours_threshold_for_half_day=1,
+			working_hours_threshold_for_absent=2,
+		)
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("08:00:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_type.name)
+
+		timestamp = datetime.combine(date, get_time("08:45:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_type.name)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value(
+			"Attendance", {"shift": shift_type.name}, ["status", "working_hours"], as_dict=True
+		)
+		self.assertEqual(attendance.status, "Half Day")
+		self.assertEqual(attendance.working_hours, 0.75)
+
+	def test_working_hours_threshold_for_absent_and_half_day_2(self):
+		# considers absent over half day
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_type = setup_shift_type(
+			shift_type="Half Day + Absent Test",
+			working_hours_threshold_for_half_day=1,
+			working_hours_threshold_for_absent=2,
+		)
+		date = getdate()
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("08:00:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_type.name)
+
+		timestamp = datetime.combine(date, get_time("09:30:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_type.name)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value("Attendance", {"shift": shift_type.name}, "status")
+		self.assertEqual(attendance, "Absent")
+
+	def test_mark_absent_for_dates_with_no_attendance(self):
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_type = setup_shift_type(shift_type="Test Absent with no Attendance")
+
+		# absentees are auto-marked one day after to wait for any manual attendance records
+		date = add_days(getdate(), -1)
+		make_shift_assignment(shift_type.name, employee, date)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value(
+			"Attendance", {"attendance_date": date, "employee": employee}, "status"
+		)
+		self.assertEqual(attendance, "Absent")
+
+	@set_holiday_list("Salary Slip Test Holiday List", "_Test Company")
+	def test_skip_marking_absent_on_a_holiday(self):
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_type = setup_shift_type(shift_type="Test Absent with no Attendance")
+		shift_type.holiday_list = None
+		shift_type.save()
+
+		# should not mark any attendance if no shift assignment is created
+		shift_type.process_auto_attendance()
+		attendance = frappe.db.get_value("Attendance", {"employee": employee}, "status")
+		self.assertIsNone(attendance)
+
+		first_sunday = get_first_sunday(self.holiday_list, for_date=getdate())
+		make_shift_assignment(shift_type.name, employee, first_sunday)
+
+		shift_type.process_auto_attendance()
+
+		attendance = frappe.db.get_value(
+			"Attendance", {"attendance_date": first_sunday, "employee": employee}, "status"
+		)
+		self.assertIsNone(attendance)
+
+	def test_get_start_and_end_dates(self):
+		date = getdate()
+
+		doj = add_days(date, -30)
+		relieving_date = add_days(date, -5)
+		employee = make_employee(
+			"test_employee_dates@example.com",
+			company="_Test Company",
+			date_of_joining=doj,
+			relieving_date=relieving_date,
+		)
+		shift_type = setup_shift_type(
+			shift_type="Test Absent with no Attendance", process_attendance_after=add_days(doj, 2)
+		)
+
+		make_shift_assignment(shift_type.name, employee, add_days(date, -25))
+
+		shift_type.process_auto_attendance()
+
+		# should not mark absent before shift assignment/process attendance after date
+		attendance = frappe.db.get_value(
+			"Attendance", {"attendance_date": doj, "employee": employee}, "name"
+		)
+		self.assertIsNone(attendance)
+
+		# mark absent on Relieving Date
+		attendance = frappe.db.get_value(
+			"Attendance", {"attendance_date": relieving_date, "employee": employee}, "status"
+		)
+		self.assertEquals(attendance, "Absent")
+
+		# should not mark absent after Relieving Date
+		attendance = frappe.db.get_value(
+			"Attendance", {"attendance_date": add_days(relieving_date, 1), "employee": employee}, "name"
+		)
+		self.assertIsNone(attendance)
+
+	def test_skip_auto_attendance_for_duplicate_record(self):
+		# Skip auto attendance in case of duplicate attendance record
+		from erpnext.hr.doctype.attendance.attendance import mark_attendance
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+
+		shift_type = setup_shift_type()
+		date = getdate()
+
+		# mark attendance
+		mark_attendance(employee, date, "Present")
+		make_shift_assignment(shift_type.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("08:00:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_type.name)
+
+		timestamp = datetime.combine(date, get_time("12:00:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_type.name)
+
+		# auto attendance should skip marking
+		shift_type.process_auto_attendance()
+
+		log_in.reload()
+		log_out.reload()
+		self.assertEqual(log_in.skip_auto_attendance, 1)
+		self.assertEqual(log_out.skip_auto_attendance, 1)
+
+	def test_skip_auto_attendance_for_overlapping_shift(self):
+		# Skip auto attendance in case of overlapping shift attendance record
+		# this case won't occur in case of shift assignment, since it will not allow overlapping shifts to be assigned
+		# can happen if manual attendance records are created
+		from erpnext.hr.doctype.attendance.attendance import mark_attendance
+		from erpnext.hr.doctype.employee_checkin.test_employee_checkin import make_checkin
+
+		employee = make_employee("test_employee_checkin@example.com", company="_Test Company")
+		shift_1 = setup_shift_type(shift_type="Shift 1", start_time="08:00:00", end_time="10:00:00")
+		shift_2 = setup_shift_type(shift_type="Shift 2", start_time="09:30:00", end_time="11:00:00")
+
+		date = getdate()
+
+		# mark attendance
+		mark_attendance(employee, date, "Present", shift=shift_1.name)
+		make_shift_assignment(shift_2.name, employee, date)
+
+		timestamp = datetime.combine(date, get_time("09:30:00"))
+		log_in = make_checkin(employee, timestamp)
+		self.assertEqual(log_in.shift, shift_2.name)
+
+		timestamp = datetime.combine(date, get_time("11:00:00"))
+		log_out = make_checkin(employee, timestamp)
+		self.assertEqual(log_out.shift, shift_2.name)
+
+		# auto attendance should be skipped for shift 2
+		# since it is already marked for overlapping shift 1
+		shift_2.process_auto_attendance()
+
+		log_in.reload()
+		log_out.reload()
+		self.assertEqual(log_in.skip_auto_attendance, 1)
+		self.assertEqual(log_out.skip_auto_attendance, 1)
+
+
+def setup_shift_type(**args):
+	args = frappe._dict(args)
+	date = getdate()
+
+	shift_type = frappe.get_doc(
+		{
+			"doctype": "Shift Type",
+			"__newname": args.shift_type or "_Test Shift",
+			"start_time": "08:00:00",
+			"end_time": "12:00:00",
+			"enable_auto_attendance": 1,
+			"determine_check_in_and_check_out": "Alternating entries as IN and OUT during the same shift",
+			"working_hours_calculation_based_on": "First Check-in and Last Check-out",
+			"begin_check_in_before_shift_start_time": 60,
+			"allow_check_out_after_shift_end_time": 60,
+			"process_attendance_after": add_days(date, -2),
+			"last_sync_of_checkin": now_datetime() + timedelta(days=1),
+		}
+	)
+
+	holiday_list = "Employee Checkin Test Holiday List"
+	if not frappe.db.exists("Holiday List", "Employee Checkin Test Holiday List"):
+		holiday_list = frappe.get_doc(
+			{
+				"doctype": "Holiday List",
+				"holiday_list_name": "Employee Checkin Test Holiday List",
+				"from_date": get_year_start(date),
+				"to_date": get_year_ending(date),
+			}
+		).insert()
+		holiday_list = holiday_list.name
+
+	shift_type.holiday_list = holiday_list
+	shift_type.update(args)
+	shift_type.save()
+
+	return shift_type
+
+
+def make_shift_assignment(shift_type, employee, start_date, end_date=None):
+	shift_assignment = frappe.get_doc(
+		{
+			"doctype": "Shift Assignment",
+			"shift_type": shift_type,
+			"company": "_Test Company",
+			"employee": employee,
+			"start_date": start_date,
+			"end_date": end_date,
+		}
+	).insert()
+	shift_assignment.submit()
+
+	return shift_assignment
diff --git a/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.js b/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.js
index 42f7cdb..6f4bbd5 100644
--- a/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.js
+++ b/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.js
@@ -66,8 +66,7 @@
 			"Default": 0,
 		}
 	],
-
-	"onload": function() {
+	onload: function() {
 		return  frappe.call({
 			method: "erpnext.hr.report.monthly_attendance_sheet.monthly_attendance_sheet.get_attendance_years",
 			callback: function(r) {
@@ -78,5 +77,25 @@
 				year_filter.set_input(year_filter.df.default);
 			}
 		});
+	},
+	formatter: function(value, row, column, data, default_formatter) {
+		value = default_formatter(value, row, column, data);
+		const summarized_view = frappe.query_report.get_filter_value('summarized_view');
+		const group_by = frappe.query_report.get_filter_value('group_by');
+
+		if (!summarized_view) {
+			if ((group_by && column.colIndex > 3) || (!group_by && column.colIndex > 2)) {
+				if (value == 'P' || value == 'WFH')
+					value = "<span style='color:green'>" + value + "</span>";
+				else if (value == 'A')
+					value = "<span style='color:red'>" + value + "</span>";
+				else if (value == 'HD')
+					value = "<span style='color:orange'>" + value + "</span>";
+				else if (value == 'L')
+					value = "<span style='color:#318AD8'>" + value + "</span>";
+			}
+		}
+
+		return value;
 	}
 }
diff --git a/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.py b/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.py
index 8ea4989..efd2d38 100644
--- a/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.py
+++ b/erpnext/hr/report/monthly_attendance_sheet/monthly_attendance_sheet.py
@@ -3,365 +3,618 @@
 
 
 from calendar import monthrange
+from itertools import groupby
+from typing import Dict, List, Optional, Tuple
 
 import frappe
-from frappe import _, msgprint
+from frappe import _
+from frappe.query_builder.functions import Count, Extract, Sum
 from frappe.utils import cint, cstr, getdate
 
+Filters = frappe._dict
+
 status_map = {
+	"Present": "P",
 	"Absent": "A",
 	"Half Day": "HD",
-	"Holiday": "<b>H</b>",
-	"Weekly Off": "<b>WO</b>",
-	"On Leave": "L",
-	"Present": "P",
 	"Work From Home": "WFH",
+	"On Leave": "L",
+	"Holiday": "H",
+	"Weekly Off": "WO",
 }
 
 day_abbr = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
 
 
-def execute(filters=None):
-	if not filters:
-		filters = {}
+def execute(filters: Optional[Filters] = None) -> Tuple:
+	filters = frappe._dict(filters or {})
 
-	if filters.hide_year_field == 1:
-		filters.year = 2020
+	if not (filters.month and filters.year):
+		frappe.throw(_("Please select month and year."))
 
-	conditions, filters = get_conditions(filters)
-	columns, days = get_columns(filters)
-	att_map = get_attendance_list(conditions, filters)
-	if not att_map:
+	attendance_map = get_attendance_map(filters)
+	if not attendance_map:
+		frappe.msgprint(_("No attendance records found."), alert=True, indicator="orange")
+		return [], [], None, None
+
+	columns = get_columns(filters)
+	data = get_data(filters, attendance_map)
+
+	if not data:
+		frappe.msgprint(
+			_("No attendance records found for this criteria."), alert=True, indicator="orange"
+		)
 		return columns, [], None, None
 
-	if filters.group_by:
-		emp_map, group_by_parameters = get_employee_details(filters.group_by, filters.company)
-		holiday_list = []
-		for parameter in group_by_parameters:
-			h_list = [
-				emp_map[parameter][d]["holiday_list"]
-				for d in emp_map[parameter]
-				if emp_map[parameter][d]["holiday_list"]
-			]
-			holiday_list += h_list
-	else:
-		emp_map = get_employee_details(filters.group_by, filters.company)
-		holiday_list = [emp_map[d]["holiday_list"] for d in emp_map if emp_map[d]["holiday_list"]]
+	message = get_message() if not filters.summarized_view else ""
+	chart = get_chart_data(attendance_map, filters)
 
-	default_holiday_list = frappe.get_cached_value(
-		"Company", filters.get("company"), "default_holiday_list"
-	)
-	holiday_list.append(default_holiday_list)
-	holiday_list = list(set(holiday_list))
-	holiday_map = get_holiday(holiday_list, filters["month"])
-
-	data = []
-
-	leave_types = frappe.db.get_list("Leave Type")
-	leave_list = None
-	if filters.summarized_view:
-		leave_list = [d.name + ":Float:120" for d in leave_types]
-		columns.extend(leave_list)
-		columns.extend([_("Total Late Entries") + ":Float:120", _("Total Early Exits") + ":Float:120"])
-
-	if filters.group_by:
-		emp_att_map = {}
-		for parameter in group_by_parameters:
-			emp_map_set = set([key for key in emp_map[parameter].keys()])
-			att_map_set = set([key for key in att_map.keys()])
-			if att_map_set & emp_map_set:
-				parameter_row = ["<b>" + parameter + "</b>"] + [
-					"" for day in range(filters["total_days_in_month"] + 2)
-				]
-				data.append(parameter_row)
-				record, emp_att_data = add_data(
-					emp_map[parameter],
-					att_map,
-					filters,
-					holiday_map,
-					conditions,
-					default_holiday_list,
-					leave_types=leave_types,
-				)
-				emp_att_map.update(emp_att_data)
-				data += record
-	else:
-		record, emp_att_map = add_data(
-			emp_map,
-			att_map,
-			filters,
-			holiday_map,
-			conditions,
-			default_holiday_list,
-			leave_types=leave_types,
-		)
-		data += record
-
-	chart_data = get_chart_data(emp_att_map, days)
-
-	return columns, data, None, chart_data
+	return columns, data, message, chart
 
 
-def get_chart_data(emp_att_map, days):
-	labels = []
-	datasets = [
-		{"name": "Absent", "values": []},
-		{"name": "Present", "values": []},
-		{"name": "Leave", "values": []},
-	]
-	for idx, day in enumerate(days, start=0):
-		p = day.replace("::65", "")
-		labels.append(day.replace("::65", ""))
-		total_absent_on_day = 0
-		total_leave_on_day = 0
-		total_present_on_day = 0
-		total_holiday = 0
-		for emp in emp_att_map.keys():
-			if emp_att_map[emp][idx]:
-				if emp_att_map[emp][idx] == "A":
-					total_absent_on_day += 1
-				if emp_att_map[emp][idx] in ["P", "WFH"]:
-					total_present_on_day += 1
-				if emp_att_map[emp][idx] == "HD":
-					total_present_on_day += 0.5
-					total_leave_on_day += 0.5
-				if emp_att_map[emp][idx] == "L":
-					total_leave_on_day += 1
+def get_message() -> str:
+	message = ""
+	colors = ["green", "red", "orange", "green", "#318AD8", "", ""]
 
-		datasets[0]["values"].append(total_absent_on_day)
-		datasets[1]["values"].append(total_present_on_day)
-		datasets[2]["values"].append(total_leave_on_day)
+	count = 0
+	for status, abbr in status_map.items():
+		message += f"""
+			<span style='border-left: 2px solid {colors[count]}; padding-right: 12px; padding-left: 5px; margin-right: 3px;'>
+				{status} - {abbr}
+			</span>
+		"""
+		count += 1
 
-	chart = {"data": {"labels": labels, "datasets": datasets}}
-
-	chart["type"] = "line"
-
-	return chart
+	return message
 
 
-def add_data(
-	employee_map, att_map, filters, holiday_map, conditions, default_holiday_list, leave_types=None
-):
-
-	record = []
-	emp_att_map = {}
-	for emp in employee_map:
-		emp_det = employee_map.get(emp)
-		if not emp_det or emp not in att_map:
-			continue
-
-		row = []
-		if filters.group_by:
-			row += [" "]
-		row += [emp, emp_det.employee_name]
-
-		total_p = total_a = total_l = total_h = total_um = 0.0
-		emp_status_map = []
-		for day in range(filters["total_days_in_month"]):
-			status = None
-			status = att_map.get(emp).get(day + 1)
-
-			if status is None and holiday_map:
-				emp_holiday_list = emp_det.holiday_list if emp_det.holiday_list else default_holiday_list
-
-				if emp_holiday_list in holiday_map:
-					for idx, ele in enumerate(holiday_map[emp_holiday_list]):
-						if day + 1 == holiday_map[emp_holiday_list][idx][0]:
-							if holiday_map[emp_holiday_list][idx][1]:
-								status = "Weekly Off"
-							else:
-								status = "Holiday"
-							total_h += 1
-
-			abbr = status_map.get(status, "")
-			emp_status_map.append(abbr)
-
-			if filters.summarized_view:
-				if status == "Present" or status == "Work From Home":
-					total_p += 1
-				elif status == "Absent":
-					total_a += 1
-				elif status == "On Leave":
-					total_l += 1
-				elif status == "Half Day":
-					total_p += 0.5
-					total_a += 0.5
-					total_l += 0.5
-				elif not status:
-					total_um += 1
-
-		if not filters.summarized_view:
-			row += emp_status_map
-
-		if filters.summarized_view:
-			row += [total_p, total_l, total_a, total_h, total_um]
-
-		if not filters.get("employee"):
-			filters.update({"employee": emp})
-			conditions += " and employee = %(employee)s"
-		elif not filters.get("employee") == emp:
-			filters.update({"employee": emp})
-
-		if filters.summarized_view:
-			leave_details = frappe.db.sql(
-				"""select leave_type, status, count(*) as count from `tabAttendance`\
-				where leave_type is not NULL %s group by leave_type, status"""
-				% conditions,
-				filters,
-				as_dict=1,
-			)
-
-			time_default_counts = frappe.db.sql(
-				"""select (select count(*) from `tabAttendance` where \
-				late_entry = 1 %s) as late_entry_count, (select count(*) from tabAttendance where \
-				early_exit = 1 %s) as early_exit_count"""
-				% (conditions, conditions),
-				filters,
-			)
-
-			leaves = {}
-			for d in leave_details:
-				if d.status == "Half Day":
-					d.count = d.count * 0.5
-				if d.leave_type in leaves:
-					leaves[d.leave_type] += d.count
-				else:
-					leaves[d.leave_type] = d.count
-
-			for d in leave_types:
-				if d.name in leaves:
-					row.append(leaves[d.name])
-				else:
-					row.append("0.0")
-
-			row.extend([time_default_counts[0][0], time_default_counts[0][1]])
-		emp_att_map[emp] = emp_status_map
-		record.append(row)
-
-	return record, emp_att_map
-
-
-def get_columns(filters):
-
+def get_columns(filters: Filters) -> List[Dict]:
 	columns = []
 
 	if filters.group_by:
-		columns = [_(filters.group_by) + ":Link/Branch:120"]
+		columns.append(
+			{
+				"label": _(filters.group_by),
+				"fieldname": frappe.scrub(filters.group_by),
+				"fieldtype": "Link",
+				"options": "Branch",
+				"width": 120,
+			}
+		)
 
-	columns += [_("Employee") + ":Link/Employee:120", _("Employee Name") + ":Data/:120"]
-	days = []
-	for day in range(filters["total_days_in_month"]):
-		date = str(filters.year) + "-" + str(filters.month) + "-" + str(day + 1)
-		day_name = day_abbr[getdate(date).weekday()]
-		days.append(cstr(day + 1) + " " + day_name + "::65")
-	if not filters.summarized_view:
-		columns += days
-
-	if filters.summarized_view:
-		columns += [
-			_("Total Present") + ":Float:120",
-			_("Total Leaves") + ":Float:120",
-			_("Total Absent") + ":Float:120",
-			_("Total Holidays") + ":Float:120",
-			_("Unmarked Days") + ":Float:120",
+	columns.extend(
+		[
+			{
+				"label": _("Employee"),
+				"fieldname": "employee",
+				"fieldtype": "Link",
+				"options": "Employee",
+				"width": 135,
+			},
+			{"label": _("Employee Name"), "fieldname": "employee_name", "fieldtype": "Data", "width": 120},
 		]
-	return columns, days
-
-
-def get_attendance_list(conditions, filters):
-	attendance_list = frappe.db.sql(
-		"""select employee, day(attendance_date) as day_of_month,
-		status from tabAttendance where docstatus = 1 %s order by employee, attendance_date"""
-		% conditions,
-		filters,
-		as_dict=1,
 	)
 
-	if not attendance_list:
-		msgprint(_("No attendance record found"), alert=True, indicator="orange")
+	if filters.summarized_view:
+		columns.extend(
+			[
+				{
+					"label": _("Total Present"),
+					"fieldname": "total_present",
+					"fieldtype": "Float",
+					"width": 110,
+				},
+				{"label": _("Total Leaves"), "fieldname": "total_leaves", "fieldtype": "Float", "width": 110},
+				{"label": _("Total Absent"), "fieldname": "total_absent", "fieldtype": "Float", "width": 110},
+				{
+					"label": _("Total Holidays"),
+					"fieldname": "total_holidays",
+					"fieldtype": "Float",
+					"width": 120,
+				},
+				{
+					"label": _("Unmarked Days"),
+					"fieldname": "unmarked_days",
+					"fieldtype": "Float",
+					"width": 130,
+				},
+			]
+		)
+		columns.extend(get_columns_for_leave_types())
+		columns.extend(
+			[
+				{
+					"label": _("Total Late Entries"),
+					"fieldname": "total_late_entries",
+					"fieldtype": "Float",
+					"width": 140,
+				},
+				{
+					"label": _("Total Early Exits"),
+					"fieldname": "total_early_exits",
+					"fieldtype": "Float",
+					"width": 140,
+				},
+			]
+		)
+	else:
+		columns.append({"label": _("Shift"), "fieldname": "shift", "fieldtype": "Data", "width": 120})
+		columns.extend(get_columns_for_days(filters))
 
-	att_map = {}
+	return columns
+
+
+def get_columns_for_leave_types() -> List[Dict]:
+	leave_types = frappe.db.get_all("Leave Type", pluck="name")
+	types = []
+	for entry in leave_types:
+		types.append(
+			{"label": entry, "fieldname": frappe.scrub(entry), "fieldtype": "Float", "width": 120}
+		)
+
+	return types
+
+
+def get_columns_for_days(filters: Filters) -> List[Dict]:
+	total_days = get_total_days_in_month(filters)
+	days = []
+
+	for day in range(1, total_days + 1):
+		# forms the dates from selected year and month from filters
+		date = "{}-{}-{}".format(cstr(filters.year), cstr(filters.month), cstr(day))
+		# gets abbr from weekday number
+		weekday = day_abbr[getdate(date).weekday()]
+		# sets days as 1 Mon, 2 Tue, 3 Wed
+		label = "{} {}".format(cstr(day), weekday)
+		days.append({"label": label, "fieldtype": "Data", "fieldname": day, "width": 65})
+
+	return days
+
+
+def get_total_days_in_month(filters: Filters) -> int:
+	return monthrange(cint(filters.year), cint(filters.month))[1]
+
+
+def get_data(filters: Filters, attendance_map: Dict) -> List[Dict]:
+	employee_details, group_by_param_values = get_employee_related_details(
+		filters.group_by, filters.company
+	)
+	holiday_map = get_holiday_map(filters)
+	data = []
+
+	if filters.group_by:
+		group_by_column = frappe.scrub(filters.group_by)
+
+		for value in group_by_param_values:
+			if not value:
+				continue
+
+			records = get_rows(employee_details[value], filters, holiday_map, attendance_map)
+
+			if records:
+				data.append({group_by_column: frappe.bold(value)})
+				data.extend(records)
+	else:
+		data = get_rows(employee_details, filters, holiday_map, attendance_map)
+
+	return data
+
+
+def get_attendance_map(filters: Filters) -> Dict:
+	"""Returns a dictionary of employee wise attendance map as per shifts for all the days of the month like
+	{
+	        'employee1': {
+	                'Morning Shift': {1: 'Present', 2: 'Absent', ...}
+	                'Evening Shift': {1: 'Absent', 2: 'Present', ...}
+	        },
+	        'employee2': {
+	                'Afternoon Shift': {1: 'Present', 2: 'Absent', ...}
+	                'Night Shift': {1: 'Absent', 2: 'Absent', ...}
+	        }
+	}
+	"""
+	Attendance = frappe.qb.DocType("Attendance")
+	query = (
+		frappe.qb.from_(Attendance)
+		.select(
+			Attendance.employee,
+			Extract("day", Attendance.attendance_date).as_("day_of_month"),
+			Attendance.status,
+			Attendance.shift,
+		)
+		.where(
+			(Attendance.docstatus == 1)
+			& (Attendance.company == filters.company)
+			& (Extract("month", Attendance.attendance_date) == filters.month)
+			& (Extract("year", Attendance.attendance_date) == filters.year)
+		)
+	)
+	if filters.employee:
+		query = query.where(Attendance.employee == filters.employee)
+	query = query.orderby(Attendance.employee, Attendance.attendance_date)
+
+	attendance_list = query.run(as_dict=1)
+	attendance_map = {}
+
 	for d in attendance_list:
-		att_map.setdefault(d.employee, frappe._dict()).setdefault(d.day_of_month, "")
-		att_map[d.employee][d.day_of_month] = d.status
+		attendance_map.setdefault(d.employee, frappe._dict()).setdefault(d.shift, frappe._dict())
+		attendance_map[d.employee][d.shift][d.day_of_month] = d.status
 
-	return att_map
+	return attendance_map
 
 
-def get_conditions(filters):
-	if not (filters.get("month") and filters.get("year")):
-		msgprint(_("Please select month and year"), raise_exception=1)
-
-	filters["total_days_in_month"] = monthrange(cint(filters.year), cint(filters.month))[1]
-
-	conditions = " and month(attendance_date) = %(month)s and year(attendance_date) = %(year)s"
-
-	if filters.get("company"):
-		conditions += " and company = %(company)s"
-	if filters.get("employee"):
-		conditions += " and employee = %(employee)s"
-
-	return conditions, filters
-
-
-def get_employee_details(group_by, company):
-	emp_map = {}
-	query = """select name, employee_name, designation, department, branch, company,
-		holiday_list from `tabEmployee` where company = %s """ % frappe.db.escape(
-		company
+def get_employee_related_details(group_by: str, company: str) -> Tuple[Dict, List]:
+	"""Returns
+	1. nested dict for employee details
+	2. list of values for the group by filter
+	"""
+	Employee = frappe.qb.DocType("Employee")
+	query = (
+		frappe.qb.from_(Employee)
+		.select(
+			Employee.name,
+			Employee.employee_name,
+			Employee.designation,
+			Employee.grade,
+			Employee.department,
+			Employee.branch,
+			Employee.company,
+			Employee.holiday_list,
+		)
+		.where(Employee.company == company)
 	)
 
 	if group_by:
 		group_by = group_by.lower()
-		query += " order by " + group_by + " ASC"
+		query = query.orderby(group_by)
 
-	employee_details = frappe.db.sql(query, as_dict=1)
+	employee_details = query.run(as_dict=True)
 
-	group_by_parameters = []
+	group_by_param_values = []
+	emp_map = {}
+
 	if group_by:
+		for parameter, employees in groupby(employee_details, key=lambda d: d[group_by]):
+			group_by_param_values.append(parameter)
+			emp_map.setdefault(parameter, frappe._dict())
 
-		group_by_parameters = list(
-			set(detail.get(group_by, "") for detail in employee_details if detail.get(group_by, ""))
-		)
-		for parameter in group_by_parameters:
-			emp_map[parameter] = {}
-
-	for d in employee_details:
-		if group_by and len(group_by_parameters):
-			if d.get(group_by, None):
-
-				emp_map[d.get(group_by)][d.name] = d
-		else:
-			emp_map[d.name] = d
-
-	if not group_by:
-		return emp_map
+			for emp in employees:
+				emp_map[parameter][emp.name] = emp
 	else:
-		return emp_map, group_by_parameters
+		for emp in employee_details:
+			emp_map[emp.name] = emp
+
+	return emp_map, group_by_param_values
 
 
-def get_holiday(holiday_list, month):
+def get_holiday_map(filters: Filters) -> Dict[str, List[Dict]]:
+	"""
+	Returns a dict of holidays falling in the filter month and year
+	with list name as key and list of holidays as values like
+	{
+	        'Holiday List 1': [
+	                {'day_of_month': '0' , 'weekly_off': 1},
+	                {'day_of_month': '1', 'weekly_off': 0}
+	        ],
+	        'Holiday List 2': [
+	                {'day_of_month': '0' , 'weekly_off': 1},
+	                {'day_of_month': '1', 'weekly_off': 0}
+	        ]
+	}
+	"""
+	# add default holiday list too
+	holiday_lists = frappe.db.get_all("Holiday List", pluck="name")
+	default_holiday_list = frappe.get_cached_value("Company", filters.company, "default_holiday_list")
+	holiday_lists.append(default_holiday_list)
+
 	holiday_map = frappe._dict()
-	for d in holiday_list:
-		if d:
-			holiday_map.setdefault(
-				d,
-				frappe.db.sql(
-					"""select day(holiday_date), weekly_off from `tabHoliday`
-				where parent=%s and month(holiday_date)=%s""",
-					(d, month),
-				),
+	Holiday = frappe.qb.DocType("Holiday")
+
+	for d in holiday_lists:
+		if not d:
+			continue
+
+		holidays = (
+			frappe.qb.from_(Holiday)
+			.select(Extract("day", Holiday.holiday_date).as_("day_of_month"), Holiday.weekly_off)
+			.where(
+				(Holiday.parent == d)
+				& (Extract("month", Holiday.holiday_date) == filters.month)
+				& (Extract("year", Holiday.holiday_date) == filters.year)
 			)
+		).run(as_dict=True)
+
+		holiday_map.setdefault(d, holidays)
 
 	return holiday_map
 
 
-@frappe.whitelist()
-def get_attendance_years():
-	year_list = frappe.db.sql_list(
-		"""select distinct YEAR(attendance_date) from tabAttendance ORDER BY YEAR(attendance_date) DESC"""
+def get_rows(
+	employee_details: Dict, filters: Filters, holiday_map: Dict, attendance_map: Dict
+) -> List[Dict]:
+	records = []
+	default_holiday_list = frappe.get_cached_value("Company", filters.company, "default_holiday_list")
+
+	for employee, details in employee_details.items():
+		emp_holiday_list = details.holiday_list or default_holiday_list
+		holidays = holiday_map.get(emp_holiday_list)
+
+		if filters.summarized_view:
+			attendance = get_attendance_status_for_summarized_view(employee, filters, holidays)
+			if not attendance:
+				continue
+
+			leave_summary = get_leave_summary(employee, filters)
+			entry_exits_summary = get_entry_exits_summary(employee, filters)
+
+			row = {"employee": employee, "employee_name": details.employee_name}
+			set_defaults_for_summarized_view(filters, row)
+			row.update(attendance)
+			row.update(leave_summary)
+			row.update(entry_exits_summary)
+
+			records.append(row)
+		else:
+			employee_attendance = attendance_map.get(employee)
+			if not employee_attendance:
+				continue
+
+			attendance_for_employee = get_attendance_status_for_detailed_view(
+				employee, filters, employee_attendance, holidays
+			)
+			# set employee details in the first row
+			attendance_for_employee[0].update(
+				{"employee": employee, "employee_name": details.employee_name}
+			)
+
+			records.extend(attendance_for_employee)
+
+	return records
+
+
+def set_defaults_for_summarized_view(filters, row):
+	for entry in get_columns(filters):
+		if entry.get("fieldtype") == "Float":
+			row[entry.get("fieldname")] = 0.0
+
+
+def get_attendance_status_for_summarized_view(
+	employee: str, filters: Filters, holidays: List
+) -> Dict:
+	"""Returns dict of attendance status for employee like
+	{'total_present': 1.5, 'total_leaves': 0.5, 'total_absent': 13.5, 'total_holidays': 8, 'unmarked_days': 5}
+	"""
+	summary, attendance_days = get_attendance_summary_and_days(employee, filters)
+	if not any(summary.values()):
+		return {}
+
+	total_days = get_total_days_in_month(filters)
+	total_holidays = total_unmarked_days = 0
+
+	for day in range(1, total_days + 1):
+		if day in attendance_days:
+			continue
+
+		status = get_holiday_status(day, holidays)
+		if status in ["Weekly Off", "Holiday"]:
+			total_holidays += 1
+		elif not status:
+			total_unmarked_days += 1
+
+	return {
+		"total_present": summary.total_present + summary.total_half_days,
+		"total_leaves": summary.total_leaves + summary.total_half_days,
+		"total_absent": summary.total_absent + summary.total_half_days,
+		"total_holidays": total_holidays,
+		"unmarked_days": total_unmarked_days,
+	}
+
+
+def get_attendance_summary_and_days(employee: str, filters: Filters) -> Tuple[Dict, List]:
+	Attendance = frappe.qb.DocType("Attendance")
+
+	present_case = (
+		frappe.qb.terms.Case()
+		.when(((Attendance.status == "Present") | (Attendance.status == "Work From Home")), 1)
+		.else_(0)
 	)
-	if not year_list:
+	sum_present = Sum(present_case).as_("total_present")
+
+	absent_case = frappe.qb.terms.Case().when(Attendance.status == "Absent", 1).else_(0)
+	sum_absent = Sum(absent_case).as_("total_absent")
+
+	leave_case = frappe.qb.terms.Case().when(Attendance.status == "On Leave", 1).else_(0)
+	sum_leave = Sum(leave_case).as_("total_leaves")
+
+	half_day_case = frappe.qb.terms.Case().when(Attendance.status == "Half Day", 0.5).else_(0)
+	sum_half_day = Sum(half_day_case).as_("total_half_days")
+
+	summary = (
+		frappe.qb.from_(Attendance)
+		.select(
+			sum_present,
+			sum_absent,
+			sum_leave,
+			sum_half_day,
+		)
+		.where(
+			(Attendance.docstatus == 1)
+			& (Attendance.employee == employee)
+			& (Attendance.company == filters.company)
+			& (Extract("month", Attendance.attendance_date) == filters.month)
+			& (Extract("year", Attendance.attendance_date) == filters.year)
+		)
+	).run(as_dict=True)
+
+	days = (
+		frappe.qb.from_(Attendance)
+		.select(Extract("day", Attendance.attendance_date).as_("day_of_month"))
+		.distinct()
+		.where(
+			(Attendance.docstatus == 1)
+			& (Attendance.employee == employee)
+			& (Attendance.company == filters.company)
+			& (Extract("month", Attendance.attendance_date) == filters.month)
+			& (Extract("year", Attendance.attendance_date) == filters.year)
+		)
+	).run(pluck=True)
+
+	return summary[0], days
+
+
+def get_attendance_status_for_detailed_view(
+	employee: str, filters: Filters, employee_attendance: Dict, holidays: List
+) -> List[Dict]:
+	"""Returns list of shift-wise attendance status for employee
+	[
+	        {'shift': 'Morning Shift', 1: 'A', 2: 'P', 3: 'A'....},
+	        {'shift': 'Evening Shift', 1: 'P', 2: 'A', 3: 'P'....}
+	]
+	"""
+	total_days = get_total_days_in_month(filters)
+	attendance_values = []
+
+	for shift, status_dict in employee_attendance.items():
+		row = {"shift": shift}
+
+		for day in range(1, total_days + 1):
+			status = status_dict.get(day)
+			if status is None and holidays:
+				status = get_holiday_status(day, holidays)
+
+			abbr = status_map.get(status, "")
+			row[day] = abbr
+
+		attendance_values.append(row)
+
+	return attendance_values
+
+
+def get_holiday_status(day: int, holidays: List) -> str:
+	status = None
+	for holiday in holidays:
+		if day == holiday.get("day_of_month"):
+			if holiday.get("weekly_off"):
+				status = "Weekly Off"
+			else:
+				status = "Holiday"
+			break
+	return status
+
+
+def get_leave_summary(employee: str, filters: Filters) -> Dict[str, float]:
+	"""Returns a dict of leave type and corresponding leaves taken by employee like:
+	{'leave_without_pay': 1.0, 'sick_leave': 2.0}
+	"""
+	Attendance = frappe.qb.DocType("Attendance")
+	day_case = frappe.qb.terms.Case().when(Attendance.status == "Half Day", 0.5).else_(1)
+	sum_leave_days = Sum(day_case).as_("leave_days")
+
+	leave_details = (
+		frappe.qb.from_(Attendance)
+		.select(Attendance.leave_type, sum_leave_days)
+		.where(
+			(Attendance.employee == employee)
+			& (Attendance.docstatus == 1)
+			& (Attendance.company == filters.company)
+			& ((Attendance.leave_type.isnotnull()) | (Attendance.leave_type != ""))
+			& (Extract("month", Attendance.attendance_date) == filters.month)
+			& (Extract("year", Attendance.attendance_date) == filters.year)
+		)
+		.groupby(Attendance.leave_type)
+	).run(as_dict=True)
+
+	leaves = {}
+	for d in leave_details:
+		leave_type = frappe.scrub(d.leave_type)
+		leaves[leave_type] = d.leave_days
+
+	return leaves
+
+
+def get_entry_exits_summary(employee: str, filters: Filters) -> Dict[str, float]:
+	"""Returns total late entries and total early exits for employee like:
+	{'total_late_entries': 5, 'total_early_exits': 2}
+	"""
+	Attendance = frappe.qb.DocType("Attendance")
+
+	late_entry_case = frappe.qb.terms.Case().when(Attendance.late_entry == "1", "1")
+	count_late_entries = Count(late_entry_case).as_("total_late_entries")
+
+	early_exit_case = frappe.qb.terms.Case().when(Attendance.early_exit == "1", "1")
+	count_early_exits = Count(early_exit_case).as_("total_early_exits")
+
+	entry_exits = (
+		frappe.qb.from_(Attendance)
+		.select(count_late_entries, count_early_exits)
+		.where(
+			(Attendance.docstatus == 1)
+			& (Attendance.employee == employee)
+			& (Attendance.company == filters.company)
+			& (Extract("month", Attendance.attendance_date) == filters.month)
+			& (Extract("year", Attendance.attendance_date) == filters.year)
+		)
+	).run(as_dict=True)
+
+	return entry_exits[0]
+
+
+@frappe.whitelist()
+def get_attendance_years() -> str:
+	"""Returns all the years for which attendance records exist"""
+	Attendance = frappe.qb.DocType("Attendance")
+	year_list = (
+		frappe.qb.from_(Attendance)
+		.select(Extract("year", Attendance.attendance_date).as_("year"))
+		.distinct()
+	).run(as_dict=True)
+
+	if year_list:
+		year_list.sort(key=lambda d: d.year, reverse=True)
+	else:
 		year_list = [getdate().year]
 
-	return "\n".join(str(year) for year in year_list)
+	return "\n".join(cstr(entry.year) for entry in year_list)
+
+
+def get_chart_data(attendance_map: Dict, filters: Filters) -> Dict:
+	days = get_columns_for_days(filters)
+	labels = []
+	absent = []
+	present = []
+	leave = []
+
+	for day in days:
+		labels.append(day["label"])
+		total_absent_on_day = total_leaves_on_day = total_present_on_day = 0
+
+		for employee, attendance_dict in attendance_map.items():
+			for shift, attendance in attendance_dict.items():
+				attendance_on_day = attendance.get(day["fieldname"])
+
+				if attendance_on_day == "Absent":
+					total_absent_on_day += 1
+				elif attendance_on_day in ["Present", "Work From Home"]:
+					total_present_on_day += 1
+				elif attendance_on_day == "Half Day":
+					total_present_on_day += 0.5
+					total_leaves_on_day += 0.5
+				elif attendance_on_day == "On Leave":
+					total_leaves_on_day += 1
+
+		absent.append(total_absent_on_day)
+		present.append(total_present_on_day)
+		leave.append(total_leaves_on_day)
+
+	return {
+		"data": {
+			"labels": labels,
+			"datasets": [
+				{"name": "Absent", "values": absent},
+				{"name": "Present", "values": present},
+				{"name": "Leave", "values": leave},
+			],
+		},
+		"type": "line",
+		"colors": ["red", "green", "blue"],
+	}
diff --git a/erpnext/hr/report/monthly_attendance_sheet/test_monthly_attendance_sheet.py b/erpnext/hr/report/monthly_attendance_sheet/test_monthly_attendance_sheet.py
index 91da08e..cde7dd3 100644
--- a/erpnext/hr/report/monthly_attendance_sheet/test_monthly_attendance_sheet.py
+++ b/erpnext/hr/report/monthly_attendance_sheet/test_monthly_attendance_sheet.py
@@ -1,18 +1,32 @@
 import frappe
 from dateutil.relativedelta import relativedelta
 from frappe.tests.utils import FrappeTestCase
-from frappe.utils import now_datetime
+from frappe.utils import get_year_ending, get_year_start, getdate, now_datetime
 
 from erpnext.hr.doctype.attendance.attendance import mark_attendance
 from erpnext.hr.doctype.employee.test_employee import make_employee
+from erpnext.hr.doctype.holiday_list.test_holiday_list import set_holiday_list
+from erpnext.hr.doctype.leave_application.test_leave_application import make_allocation_record
 from erpnext.hr.report.monthly_attendance_sheet.monthly_attendance_sheet import execute
+from erpnext.payroll.doctype.salary_slip.test_salary_slip import (
+	make_holiday_list,
+	make_leave_application,
+)
+
+test_dependencies = ["Shift Type"]
 
 
 class TestMonthlyAttendanceSheet(FrappeTestCase):
 	def setUp(self):
-		self.employee = make_employee("test_employee@example.com")
-		frappe.db.delete("Attendance", {"employee": self.employee})
+		self.employee = make_employee("test_employee@example.com", company="_Test Company")
+		frappe.db.delete("Attendance")
 
+		date = getdate()
+		from_date = get_year_start(date)
+		to_date = get_year_ending(date)
+		make_holiday_list(from_date=from_date, to_date=to_date)
+
+	@set_holiday_list("Salary Slip Test Holiday List", "_Test Company")
 	def test_monthly_attendance_sheet_report(self):
 		now = now_datetime()
 		previous_month = now.month - 1
@@ -33,14 +47,203 @@
 			}
 		)
 		report = execute(filters=filters)
-		employees = report[1][0]
+
+		record = report[1][0]
 		datasets = report[3]["data"]["datasets"]
 		absent = datasets[0]["values"]
 		present = datasets[1]["values"]
 		leaves = datasets[2]["values"]
 
-		# ensure correct attendance is reflect on the report
-		self.assertIn(self.employee, employees)
+		# ensure correct attendance is reflected on the report
+		self.assertEqual(self.employee, record.get("employee"))
 		self.assertEqual(absent[0], 1)
 		self.assertEqual(present[1], 1)
 		self.assertEqual(leaves[2], 1)
+
+	@set_holiday_list("Salary Slip Test Holiday List", "_Test Company")
+	def test_monthly_attendance_sheet_with_detailed_view(self):
+		now = now_datetime()
+		previous_month = now.month - 1
+		previous_month_first = now.replace(day=1).replace(month=previous_month).date()
+
+		company = frappe.db.get_value("Employee", self.employee, "company")
+
+		# attendance with shift
+		mark_attendance(self.employee, previous_month_first, "Absent", "Day Shift")
+		mark_attendance(
+			self.employee, previous_month_first + relativedelta(days=1), "Present", "Day Shift"
+		)
+
+		# attendance without shift
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=2), "On Leave")
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=3), "Present")
+
+		filters = frappe._dict(
+			{
+				"month": previous_month,
+				"year": now.year,
+				"company": company,
+			}
+		)
+		report = execute(filters=filters)
+
+		day_shift_row = report[1][0]
+		row_without_shift = report[1][1]
+
+		self.assertEqual(day_shift_row["shift"], "Day Shift")
+		self.assertEqual(day_shift_row[1], "A")  # absent on the 1st day of the month
+		self.assertEqual(day_shift_row[2], "P")  # present on the 2nd day
+
+		self.assertEqual(row_without_shift["shift"], None)
+		self.assertEqual(row_without_shift[3], "L")  # on leave on the 3rd day
+		self.assertEqual(row_without_shift[4], "P")  # present on the 4th day
+
+	@set_holiday_list("Salary Slip Test Holiday List", "_Test Company")
+	def test_monthly_attendance_sheet_with_summarized_view(self):
+		now = now_datetime()
+		previous_month = now.month - 1
+		previous_month_first = now.replace(day=1).replace(month=previous_month).date()
+
+		company = frappe.db.get_value("Employee", self.employee, "company")
+
+		# attendance with shift
+		mark_attendance(self.employee, previous_month_first, "Absent", "Day Shift")
+		mark_attendance(
+			self.employee, previous_month_first + relativedelta(days=1), "Present", "Day Shift"
+		)
+		mark_attendance(
+			self.employee, previous_month_first + relativedelta(days=2), "Half Day"
+		)  # half day
+
+		mark_attendance(
+			self.employee, previous_month_first + relativedelta(days=3), "Present"
+		)  # attendance without shift
+		mark_attendance(
+			self.employee, previous_month_first + relativedelta(days=4), "Present", late_entry=1
+		)  # late entry
+		mark_attendance(
+			self.employee, previous_month_first + relativedelta(days=5), "Present", early_exit=1
+		)  # early exit
+
+		leave_application = get_leave_application(self.employee)
+
+		filters = frappe._dict(
+			{"month": previous_month, "year": now.year, "company": company, "summarized_view": 1}
+		)
+		report = execute(filters=filters)
+
+		row = report[1][0]
+		self.assertEqual(row["employee"], self.employee)
+
+		# 4 present + half day absent 0.5
+		self.assertEqual(row["total_present"], 4.5)
+		# 1 present + half day absent 0.5
+		self.assertEqual(row["total_absent"], 1.5)
+		# leave days + half day leave 0.5
+		self.assertEqual(row["total_leaves"], leave_application.total_leave_days + 0.5)
+
+		self.assertEqual(row["_test_leave_type"], leave_application.total_leave_days)
+		self.assertEqual(row["total_late_entries"], 1)
+		self.assertEqual(row["total_early_exits"], 1)
+
+	@set_holiday_list("Salary Slip Test Holiday List", "_Test Company")
+	def test_attendance_with_group_by_filter(self):
+		now = now_datetime()
+		previous_month = now.month - 1
+		previous_month_first = now.replace(day=1).replace(month=previous_month).date()
+
+		company = frappe.db.get_value("Employee", self.employee, "company")
+
+		# attendance with shift
+		mark_attendance(self.employee, previous_month_first, "Absent", "Day Shift")
+		mark_attendance(
+			self.employee, previous_month_first + relativedelta(days=1), "Present", "Day Shift"
+		)
+
+		# attendance without shift
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=2), "On Leave")
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=3), "Present")
+
+		filters = frappe._dict(
+			{"month": previous_month, "year": now.year, "company": company, "group_by": "Department"}
+		)
+		report = execute(filters=filters)
+
+		department = frappe.db.get_value("Employee", self.employee, "department")
+		department_row = report[1][0]
+		self.assertIn(department, department_row["department"])
+
+		day_shift_row = report[1][1]
+		row_without_shift = report[1][2]
+
+		self.assertEqual(day_shift_row["shift"], "Day Shift")
+		self.assertEqual(day_shift_row[1], "A")  # absent on the 1st day of the month
+		self.assertEqual(day_shift_row[2], "P")  # present on the 2nd day
+
+		self.assertEqual(row_without_shift["shift"], None)
+		self.assertEqual(row_without_shift[3], "L")  # on leave on the 3rd day
+		self.assertEqual(row_without_shift[4], "P")  # present on the 4th day
+
+	def test_attendance_with_employee_filter(self):
+		now = now_datetime()
+		previous_month = now.month - 1
+		previous_month_first = now.replace(day=1).replace(month=previous_month).date()
+
+		company = frappe.db.get_value("Employee", self.employee, "company")
+
+		# mark different attendance status on first 3 days of previous month
+		mark_attendance(self.employee, previous_month_first, "Absent")
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=1), "Present")
+		mark_attendance(self.employee, previous_month_first + relativedelta(days=2), "On Leave")
+
+		filters = frappe._dict(
+			{"month": previous_month, "year": now.year, "company": company, "employee": self.employee}
+		)
+		report = execute(filters=filters)
+
+		record = report[1][0]
+		datasets = report[3]["data"]["datasets"]
+		absent = datasets[0]["values"]
+		present = datasets[1]["values"]
+		leaves = datasets[2]["values"]
+
+		# ensure correct attendance is reflected on the report
+		self.assertEqual(self.employee, record.get("employee"))
+		self.assertEqual(absent[0], 1)
+		self.assertEqual(present[1], 1)
+		self.assertEqual(leaves[2], 1)
+
+	@set_holiday_list("Salary Slip Test Holiday List", "_Test Company")
+	def test_validations(self):
+		# validation error for filters without month and year
+		self.assertRaises(frappe.ValidationError, execute_report_with_invalid_filters)
+
+		# execute report without attendance record
+		now = now_datetime()
+		previous_month = now.month - 1
+
+		company = frappe.db.get_value("Employee", self.employee, "company")
+		filters = frappe._dict(
+			{"month": previous_month, "year": now.year, "company": company, "group_by": "Department"}
+		)
+		report = execute(filters=filters)
+		self.assertEqual(report, ([], [], None, None))
+
+
+def get_leave_application(employee):
+	now = now_datetime()
+	previous_month = now.month - 1
+
+	date = getdate()
+	year_start = getdate(get_year_start(date))
+	year_end = getdate(get_year_ending(date))
+	make_allocation_record(employee=employee, from_date=year_start, to_date=year_end)
+
+	from_date = now.replace(day=7).replace(month=previous_month).date()
+	to_date = now.replace(day=8).replace(month=previous_month).date()
+	return make_leave_application(employee, from_date, to_date, "_Test Leave Type")
+
+
+def execute_report_with_invalid_filters():
+	filters = frappe._dict({"company": "_Test Company", "group_by": "Department"})
+	execute(filters=filters)
diff --git a/erpnext/hr/utils.py b/erpnext/hr/utils.py
index fd69a9b..40ab805 100644
--- a/erpnext/hr/utils.py
+++ b/erpnext/hr/utils.py
@@ -353,6 +353,17 @@
 			allocation.db_set("total_leaves_allocated", new_allocation, update_modified=False)
 			create_additional_leave_ledger_entry(allocation, earned_leaves, today_date)
 
+			if e_leave_type.based_on_date_of_joining:
+				text = _("allocated {0} leave(s) via scheduler on {1} based on the date of joining").format(
+					frappe.bold(earned_leaves), frappe.bold(formatdate(today_date))
+				)
+			else:
+				text = _("allocated {0} leave(s) via scheduler on {1}").format(
+					frappe.bold(earned_leaves), frappe.bold(formatdate(today_date))
+				)
+
+			allocation.add_comment(comment_type="Info", text=text)
+
 
 def get_monthly_earned_leave(annual_leaves, frequency, rounding):
 	earned_leaves = 0.0
diff --git a/erpnext/loan_management/doctype/loan_repayment/loan_repayment.py b/erpnext/loan_management/doctype/loan_repayment/loan_repayment.py
index 304d1a7..2535180 100644
--- a/erpnext/loan_management/doctype/loan_repayment/loan_repayment.py
+++ b/erpnext/loan_management/doctype/loan_repayment/loan_repayment.py
@@ -584,9 +584,10 @@
 			balance_amount / len(loan_doc.get("repayment_schedule")) - accrued_entries
 		)
 	else:
-		if not cancel:
+		repayment_period = loan_doc.repayment_periods - accrued_entries
+		if not cancel and repayment_period > 0:
 			monthly_repayment_amount = get_monthly_repayment_amount(
-				balance_amount, loan_doc.rate_of_interest, loan_doc.repayment_periods - accrued_entries
+				balance_amount, loan_doc.rate_of_interest, repayment_period
 			)
 		else:
 			monthly_repayment_amount = last_repayment_amount
diff --git a/erpnext/manufacturing/doctype/bom_operation/bom_operation.json b/erpnext/manufacturing/doctype/bom_operation/bom_operation.json
index 341f969..b965a43 100644
--- a/erpnext/manufacturing/doctype/bom_operation/bom_operation.json
+++ b/erpnext/manufacturing/doctype/bom_operation/bom_operation.json
@@ -109,7 +109,6 @@
    "read_only": 1
   },
   {
-   "default": "5",
    "depends_on": "eval:parent.doctype == 'BOM'",
    "fieldname": "base_operating_cost",
    "fieldtype": "Currency",
@@ -187,7 +186,7 @@
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2022-03-10 06:19:08.462027",
+ "modified": "2022-04-08 01:18:33.547481",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "BOM Operation",
diff --git a/erpnext/manufacturing/doctype/job_card/job_card.js b/erpnext/manufacturing/doctype/job_card/job_card.js
index d85b8a6..b2824e1 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.js
+++ b/erpnext/manufacturing/doctype/job_card/job_card.js
@@ -28,12 +28,12 @@
 		frappe.flags.resume_job = 0;
 		let has_items = frm.doc.items && frm.doc.items.length;
 
-		if (frm.doc.__onload.work_order_closed) {
+		if (!frm.is_new() && frm.doc.__onload.work_order_closed) {
 			frm.disable_save();
 			return;
 		}
 
-		if (!frm.doc.__islocal && has_items && frm.doc.docstatus < 2) {
+		if (!frm.is_new() && has_items && frm.doc.docstatus < 2) {
 			let to_request = frm.doc.for_quantity > frm.doc.transferred_qty;
 			let excess_transfer_allowed = frm.doc.__onload.job_card_excess_transfer;
 
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index a3bf78b..6e5ffed 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -364,3 +364,4 @@
 erpnext.patches.v13_0.set_return_against_in_pos_invoice_references
 erpnext.patches.v13_0.remove_unknown_links_to_prod_plan_items # 24-03-2022
 erpnext.patches.v13_0.update_expense_claim_status_for_paid_advances
+erpnext.patches.v13_0.create_gst_custom_fields_in_quotation
\ No newline at end of file
diff --git a/erpnext/patches/v12_0/update_is_cancelled_field.py b/erpnext/patches/v12_0/update_is_cancelled_field.py
index b567823..398dd70 100644
--- a/erpnext/patches/v12_0/update_is_cancelled_field.py
+++ b/erpnext/patches/v12_0/update_is_cancelled_field.py
@@ -20,7 +20,7 @@
 			"""
 				UPDATE `tab{doctype}`
 				SET is_cancelled = 0
-				where is_cancelled in ('', NULL, 'No')""".format(
+				where is_cancelled in ('', 'No') or is_cancelled is NULL""".format(
 				doctype=doctype
 			)
 		)
diff --git a/erpnext/patches/v13_0/create_gst_custom_fields_in_quotation.py b/erpnext/patches/v13_0/create_gst_custom_fields_in_quotation.py
new file mode 100644
index 0000000..3217eab
--- /dev/null
+++ b/erpnext/patches/v13_0/create_gst_custom_fields_in_quotation.py
@@ -0,0 +1,53 @@
+import frappe
+from frappe.custom.doctype.custom_field.custom_field import create_custom_fields
+
+
+def execute():
+	company = frappe.get_all("Company", filters={"country": "India"}, fields=["name"])
+	if not company:
+		return
+
+	sales_invoice_gst_fields = [
+		dict(
+			fieldname="billing_address_gstin",
+			label="Billing Address GSTIN",
+			fieldtype="Data",
+			insert_after="customer_address",
+			read_only=1,
+			fetch_from="customer_address.gstin",
+			print_hide=1,
+			length=15,
+		),
+		dict(
+			fieldname="customer_gstin",
+			label="Customer GSTIN",
+			fieldtype="Data",
+			insert_after="shipping_address_name",
+			fetch_from="shipping_address_name.gstin",
+			print_hide=1,
+			length=15,
+		),
+		dict(
+			fieldname="place_of_supply",
+			label="Place of Supply",
+			fieldtype="Data",
+			insert_after="customer_gstin",
+			print_hide=1,
+			read_only=1,
+			length=50,
+		),
+		dict(
+			fieldname="company_gstin",
+			label="Company GSTIN",
+			fieldtype="Data",
+			insert_after="company_address",
+			fetch_from="company_address.gstin",
+			print_hide=1,
+			read_only=1,
+			length=15,
+		),
+	]
+
+	custom_fields = {"Quotation": sales_invoice_gst_fields}
+
+	create_custom_fields(custom_fields, update=True)
diff --git a/erpnext/patches/v14_0/change_is_subcontracted_fieldtype.py b/erpnext/patches/v14_0/change_is_subcontracted_fieldtype.py
index ba919a7..9b07ba8 100644
--- a/erpnext/patches/v14_0/change_is_subcontracted_fieldtype.py
+++ b/erpnext/patches/v14_0/change_is_subcontracted_fieldtype.py
@@ -10,7 +10,7 @@
 			"""
 				UPDATE `tab{doctype}`
 				SET is_subcontracted = 0
-				where is_subcontracted in ('', NULL, 'No')""".format(
+				where is_subcontracted in ('', 'No') or is_subcontracted is null""".format(
 				doctype=doctype
 			)
 		)
diff --git a/erpnext/projects/doctype/project/project.py b/erpnext/projects/doctype/project/project.py
index 7031fcb..29f1ce4 100644
--- a/erpnext/projects/doctype/project/project.py
+++ b/erpnext/projects/doctype/project/project.py
@@ -326,21 +326,39 @@
 def get_project_list(
 	doctype, txt, filters, limit_start, limit_page_length=20, order_by="modified"
 ):
-	return frappe.db.sql(
-		"""select distinct project.*
-		from tabProject project, `tabProject User` project_user
-		where
-			(project_user.user = %(user)s
-			and project_user.parent = project.name)
-			or project.owner = %(user)s
-			order by project.modified desc
-			limit {0}, {1}
-		""".format(
-			limit_start, limit_page_length
-		),
-		{"user": frappe.session.user},
-		as_dict=True,
-		update={"doctype": "Project"},
+	meta = frappe.get_meta(doctype)
+	if not filters:
+		filters = []
+
+	fields = "distinct *"
+
+	or_filters = []
+
+	if txt:
+		if meta.search_fields:
+			for f in meta.get_search_fields():
+				if f == "name" or meta.get_field(f).fieldtype in (
+					"Data",
+					"Text",
+					"Small Text",
+					"Text Editor",
+					"select",
+				):
+					or_filters.append([doctype, f, "like", "%" + txt + "%"])
+		else:
+			if isinstance(filters, dict):
+				filters["name"] = ("like", "%" + txt + "%")
+			else:
+				filters.append([doctype, "name", "like", "%" + txt + "%"])
+
+	return frappe.get_list(
+		doctype,
+		fields=fields,
+		filters=filters,
+		or_filters=or_filters,
+		limit_start=limit_start,
+		limit_page_length=limit_page_length,
+		order_by=order_by,
 	)
 
 
diff --git a/erpnext/public/js/controllers/taxes_and_totals.js b/erpnext/public/js/controllers/taxes_and_totals.js
index 7a48fbd..3dd11f6 100644
--- a/erpnext/public/js/controllers/taxes_and_totals.js
+++ b/erpnext/public/js/controllers/taxes_and_totals.js
@@ -34,12 +34,12 @@
 		frappe.model.set_value(item.doctype, item.name, "rate", item_rate);
 	}
 
-	calculate_taxes_and_totals(update_paid_amount) {
+	async calculate_taxes_and_totals(update_paid_amount) {
 		this.discount_amount_applied = false;
 		this._calculate_taxes_and_totals();
 		this.calculate_discount_amount();
 
-		this.calculate_shipping_charges();
+		await this.calculate_shipping_charges();
 
 		// Advance calculation applicable to Sales /Purchase Invoice
 		if(in_list(["Sales Invoice", "POS Invoice", "Purchase Invoice"], this.frm.doc.doctype)
@@ -280,8 +280,7 @@
 
 		frappe.model.round_floats_in(this.frm.doc, ["total", "base_total", "net_total", "base_net_total"]);
 		if (frappe.meta.get_docfield(this.frm.doc.doctype, "shipping_rule", this.frm.doc.name)) {
-			this.shipping_rule();
-			this._calculate_taxes_and_totals();
+			return this.shipping_rule();
 		}
 	}
 
diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index fa41e1b..c9faf68 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -974,6 +974,9 @@
 			return this.frm.call({
 				doc: this.frm.doc,
 				method: "apply_shipping_rule",
+				callback: function(r) {
+					me._calculate_taxes_and_totals();
+				}
 			}).fail(() => this.frm.set_value('shipping_rule', ''));
 		}
 	}
diff --git a/erpnext/public/js/utils/barcode_scanner.js b/erpnext/public/js/utils/barcode_scanner.js
index 80a463f..f72b85c 100644
--- a/erpnext/public/js/utils/barcode_scanner.js
+++ b/erpnext/public/js/utils/barcode_scanner.js
@@ -68,7 +68,7 @@
 			row = this.get_batch_row_to_modify(batch_no);
 		} else {
 			// serial or barcode scan
-			row = this.get_row_to_modify_on_scan(row, item_code);
+			row = this.get_row_to_modify_on_scan(item_code);
 		}
 
 		if (!row) {
@@ -177,21 +177,17 @@
 	get_batch_row_to_modify(batch_no) {
 		// get row if batch already exists in table
 		const existing_batch_row = this.items_table.find((d) => d.batch_no === batch_no);
-		return existing_batch_row || null;
+		return existing_batch_row || this.get_existing_blank_row();
 	}
 
-	get_row_to_modify_on_scan(row_to_modify, item_code) {
+	get_row_to_modify_on_scan(item_code) {
 		// get an existing item row to increment or blank row to modify
 		const existing_item_row = this.items_table.find((d) => d.item_code === item_code);
-		const blank_item_row = this.items_table.find((d) => !d.item_code);
+		return existing_item_row || this.get_existing_blank_row();
+	}
 
-		if (existing_item_row) {
-			row_to_modify = existing_item_row;
-		} else if (blank_item_row) {
-			row_to_modify = blank_item_row;
-		}
-
-		return row_to_modify;
+	get_existing_blank_row() {
+		return this.items_table.find((d) => !d.item_code);
 	}
 
 	clean_up() {
diff --git a/erpnext/public/js/utils/serial_no_batch_selector.js b/erpnext/public/js/utils/serial_no_batch_selector.js
index f484545..64c5ee5 100644
--- a/erpnext/public/js/utils/serial_no_batch_selector.js
+++ b/erpnext/public/js/utils/serial_no_batch_selector.js
@@ -609,8 +609,8 @@
 		&& erpnext.stock.bom
 		&& erpnext.stock.bom.name === doc.bom_no;
 	const itemChecks = !!item
-		&& !item.allow_alternative_item
-		&& erpnext.stock.bom && erpnext.stock.items
+		&& !item.original_item
+		&& erpnext.stock.bom && erpnext.stock.bom.items
 		&& (item.item_code in erpnext.stock.bom.items);
 	return docChecks && itemChecks;
 }
diff --git a/erpnext/regional/india/e_invoice/utils.py b/erpnext/regional/india/e_invoice/utils.py
index 8fd9c1c..f317569 100644
--- a/erpnext/regional/india/e_invoice/utils.py
+++ b/erpnext/regional/india/e_invoice/utils.py
@@ -314,10 +314,14 @@
 					item.cess_rate += item_tax_rate
 					item.cess_amount += abs(item_tax_amount_after_discount)
 
-			for tax_type in ["igst", "cgst", "sgst"]:
+			for tax_type in ["igst", "cgst", "sgst", "utgst"]:
 				if t.account_head in gst_accounts[f"{tax_type}_account"]:
 					item.tax_rate += item_tax_rate
-					item[f"{tax_type}_amount"] += abs(item_tax_amount)
+					if tax_type == "utgst":
+						# utgst taxes are reported same as sgst tax
+						item["sgst_amount"] += abs(item_tax_amount)
+					else:
+						item[f"{tax_type}_amount"] += abs(item_tax_amount)
 		else:
 			# TODO: other charges per item
 			pass
@@ -359,11 +363,15 @@
 				# using after discount amt since item also uses after discount amt for cess calc
 				invoice_value_details.total_cess_amt += abs(t.base_tax_amount_after_discount_amount)
 
-			for tax_type in ["igst", "cgst", "sgst"]:
+			for tax_type in ["igst", "cgst", "sgst", "utgst"]:
 				if t.account_head in gst_accounts[f"{tax_type}_account"]:
+					if tax_type == "utgst":
+						invoice_value_details["total_sgst_amt"] += abs(tax_amount)
+					else:
+						invoice_value_details[f"total_{tax_type}_amt"] += abs(tax_amount)
 
-					invoice_value_details[f"total_{tax_type}_amt"] += abs(tax_amount)
 				update_other_charges(t, invoice_value_details, gst_accounts_list, invoice, considered_rows)
+
 		else:
 			invoice_value_details.total_other_charges += abs(tax_amount)
 
diff --git a/erpnext/regional/india/setup.py b/erpnext/regional/india/setup.py
index 40fa6cd..446faaa 100644
--- a/erpnext/regional/india/setup.py
+++ b/erpnext/regional/india/setup.py
@@ -930,6 +930,7 @@
 		"Journal Entry": journal_entry_fields,
 		"Sales Order": sales_invoice_gst_fields,
 		"Tax Category": inter_state_gst_field,
+		"Quotation": sales_invoice_gst_fields,
 		"Item": [
 			dict(
 				fieldname="gst_hsn_code",
diff --git a/erpnext/regional/india/utils.py b/erpnext/regional/india/utils.py
index 48e1751..0b6fcc6 100644
--- a/erpnext/regional/india/utils.py
+++ b/erpnext/regional/india/utils.py
@@ -225,7 +225,7 @@
 	if not frappe.get_meta("Address").has_field("gst_state"):
 		return
 
-	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order"):
+	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order", "Quotation"):
 		address_name = party_details.customer_address or party_details.shipping_address_name
 	elif doctype in ("Purchase Invoice", "Purchase Order", "Purchase Receipt"):
 		address_name = party_details.shipping_address or party_details.supplier_address
@@ -254,7 +254,7 @@
 		party_details.taxes = []
 		return party_details
 
-	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order"):
+	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order", "Quotation"):
 		master_doctype = "Sales Taxes and Charges Template"
 		tax_template_by_category = get_tax_template_based_on_category(
 			master_doctype, company, party_details
@@ -311,7 +311,7 @@
 
 
 def is_internal_transfer(party_details, doctype):
-	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order"):
+	if doctype in ("Sales Invoice", "Delivery Note", "Sales Order", "Quotation"):
 		destination_gstin = party_details.company_gstin
 	elif doctype in ("Purchase Invoice", "Purchase Order", "Purchase Receipt"):
 		destination_gstin = party_details.supplier_gstin
@@ -340,7 +340,7 @@
 	tax_categories = frappe.get_all(
 		"Tax Category",
 		fields=["name", "is_inter_state", "gst_state"],
-		filters={"is_inter_state": is_inter_state, "is_reverse_charge": 0},
+		filters={"is_inter_state": is_inter_state, "is_reverse_charge": 0, "disabled": 0},
 	)
 
 	default_tax = ""
@@ -824,7 +824,7 @@
 	gst_settings_accounts = frappe.get_all(
 		"GST Account",
 		filters=filters,
-		fields=["cgst_account", "sgst_account", "igst_account", "cess_account"],
+		fields=["cgst_account", "sgst_account", "igst_account", "cess_account", "utgst_account"],
 	)
 
 	if not gst_settings_accounts and not frappe.flags.in_test and not frappe.flags.in_migrate:
diff --git a/erpnext/selling/doctype/customer/customer.py b/erpnext/selling/doctype/customer/customer.py
index 2e5cbb8..8889a5f 100644
--- a/erpnext/selling/doctype/customer/customer.py
+++ b/erpnext/selling/doctype/customer/customer.py
@@ -100,7 +100,8 @@
 	@frappe.whitelist()
 	def get_customer_group_details(self):
 		doc = frappe.get_doc("Customer Group", self.customer_group)
-		self.accounts = self.credit_limits = []
+		self.accounts = []
+		self.credit_limits = []
 		self.payment_terms = self.default_price_list = ""
 
 		tables = [["accounts", "account"], ["credit_limits", "credit_limit"]]
diff --git a/erpnext/selling/doctype/customer/test_customer.py b/erpnext/selling/doctype/customer/test_customer.py
index 4027d2e..36ca2b2 100644
--- a/erpnext/selling/doctype/customer/test_customer.py
+++ b/erpnext/selling/doctype/customer/test_customer.py
@@ -45,7 +45,8 @@
 		c_doc.customer_name = "Testing Customer"
 		c_doc.customer_group = "_Testing Customer Group"
 		c_doc.payment_terms = c_doc.default_price_list = ""
-		c_doc.accounts = c_doc.credit_limits = []
+		c_doc.accounts = []
+		c_doc.credit_limits = []
 		c_doc.insert()
 		c_doc.get_customer_group_details()
 		self.assertEqual(c_doc.payment_terms, "_Test Payment Term Template 3")
diff --git a/erpnext/selling/doctype/quotation/quotation.json b/erpnext/selling/doctype/quotation/quotation.json
index ee5b0ea..75443ab 100644
--- a/erpnext/selling/doctype/quotation/quotation.json
+++ b/erpnext/selling/doctype/quotation/quotation.json
@@ -31,6 +31,8 @@
   "col_break98",
   "shipping_address_name",
   "shipping_address",
+  "company_address",
+  "company_address_display",
   "customer_group",
   "territory",
   "currency_and_price_list",
@@ -41,6 +43,8 @@
   "price_list_currency",
   "plc_conversion_rate",
   "ignore_pricing_rule",
+  "section_break_33",
+  "scan_barcode",
   "items_section",
   "items",
   "bundle_items_section",
@@ -953,15 +957,36 @@
    "fieldname": "competitors",
    "fieldtype": "Table MultiSelect",
    "label": "Competitors",
-   "options": "Competitor Detail",
+   "options": "Competitor Detail"
+  },
+  {
+   "fieldname": "company_address",
+   "fieldtype": "Link",
+   "label": "Company Address Name",
+   "options": "Address"
+  },
+  {
+   "fieldname": "company_address_display",
+   "fieldtype": "Small Text",
+   "label": "Company Address",
    "read_only": 1
+  },
+  {
+   "fieldname": "section_break_33",
+   "fieldtype": "Section Break"
+  },
+  {
+   "fieldname": "scan_barcode",
+   "fieldtype": "Data",
+   "label": "Scan Barcode",
+   "options": "Barcode"
   }
  ],
  "icon": "fa fa-shopping-cart",
  "idx": 82,
  "is_submittable": 1,
  "links": [],
- "modified": "2021-11-30 01:33:21.106073",
+ "modified": "2022-04-07 11:01:31.157084",
  "modified_by": "Administrator",
  "module": "Selling",
  "name": "Quotation",
@@ -1056,6 +1081,7 @@
  "show_name_in_global_search": 1,
  "sort_field": "modified",
  "sort_order": "DESC",
+ "states": [],
  "timeline_field": "party_name",
  "title_field": "title"
 }
\ No newline at end of file
diff --git a/erpnext/selling/doctype/quotation/regional/india.js b/erpnext/selling/doctype/quotation/regional/india.js
new file mode 100644
index 0000000..9550835
--- /dev/null
+++ b/erpnext/selling/doctype/quotation/regional/india.js
@@ -0,0 +1,3 @@
+{% include "erpnext/regional/india/taxes.js" %}
+
+erpnext.setup_auto_gst_taxation('Quotation');
diff --git a/erpnext/selling/page/point_of_sale/pos_controller.js b/erpnext/selling/page/point_of_sale/pos_controller.js
index 6974bed..65e0cbb 100644
--- a/erpnext/selling/page/point_of_sale/pos_controller.js
+++ b/erpnext/selling/page/point_of_sale/pos_controller.js
@@ -721,11 +721,14 @@
 
 	async save_and_checkout() {
 		if (this.frm.is_dirty()) {
+			let save_error = false;
+			await this.frm.save(null, null, null, () => save_error = true);
 			// only move to payment section if save is successful
-			frappe.route_hooks.after_save = () => this.payment.checkout();
-			return this.frm.save(
-				null, null, null, () => this.cart.toggle_checkout_btn(true) // show checkout button on error
-			);
+			!save_error && this.payment.checkout();
+			// show checkout button on error
+			save_error && setTimeout(() => {
+				this.cart.toggle_checkout_btn(true);
+			}, 300); // wait for save to finish
 		} else {
 			this.payment.checkout();
 		}
diff --git a/erpnext/selling/page/sales_funnel/sales_funnel.py b/erpnext/selling/page/sales_funnel/sales_funnel.py
index c626f5b..6b33a71 100644
--- a/erpnext/selling/page/sales_funnel/sales_funnel.py
+++ b/erpnext/selling/page/sales_funnel/sales_funnel.py
@@ -1,10 +1,11 @@
 # Copyright (c) 2018, Frappe Technologies Pvt. Ltd. and Contributors
 # License: GNU General Public License v3. See license.txt
 
+from itertools import groupby
 
 import frappe
-import pandas as pd
 from frappe import _
+from frappe.utils import flt
 
 from erpnext.accounts.report.utils import convert
 
@@ -89,28 +90,21 @@
 			for x in opportunities
 		]
 
-		df = (
-			pd.DataFrame(cp_opportunities)
-			.groupby(["source", "sales_stage"], as_index=False)
-			.agg({"compound_amount": "sum"})
-		)
+		summary = {}
+		sales_stages = set()
+		group_key = lambda o: (o["source"], o["sales_stage"])  # noqa
+		for (source, sales_stage), rows in groupby(cp_opportunities, group_key):
+			summary.setdefault(source, {})[sales_stage] = sum(r["compound_amount"] for r in rows)
+			sales_stages.add(sales_stage)
 
-		result = {}
-		result["labels"] = list(set(df.source.values))
-		result["datasets"] = []
+		pivot_table = []
+		for sales_stage in sales_stages:
+			row = []
+			for source, sales_stage_values in summary.items():
+				row.append(flt(sales_stage_values.get(sales_stage)))
+			pivot_table.append({"chartType": "bar", "name": sales_stage, "values": row})
 
-		for s in set(df.sales_stage.values):
-			result["datasets"].append(
-				{"name": s, "values": [0] * len(result["labels"]), "chartType": "bar"}
-			)
-
-		for row in df.itertuples():
-			source_index = result["labels"].index(row.source)
-
-			for dataset in result["datasets"]:
-				if dataset["name"] == row.sales_stage:
-					dataset["values"][source_index] = row.compound_amount
-
+		result = {"datasets": pivot_table, "labels": list(summary.keys())}
 		return result
 
 	else:
@@ -148,20 +142,14 @@
 			for x in opportunities
 		]
 
-		df = (
-			pd.DataFrame(cp_opportunities)
-			.groupby(["sales_stage"], as_index=True)
-			.agg({"compound_amount": "sum"})
-			.to_dict()
-		)
+		summary = {}
+		for sales_stage, rows in groupby(cp_opportunities, lambda o: o["sales_stage"]):
+			summary[sales_stage] = sum(flt(r["compound_amount"]) for r in rows)
 
-		result = {}
-		result["labels"] = df["compound_amount"].keys()
-		result["datasets"] = []
-		result["datasets"].append(
-			{"name": _("Total Amount"), "values": df["compound_amount"].values(), "chartType": "bar"}
-		)
-
+		result = {
+			"labels": list(summary.keys()),
+			"datasets": [{"name": _("Total Amount"), "values": list(summary.values()), "chartType": "bar"}],
+		}
 		return result
 
 	else:
diff --git a/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.js b/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.js
index 0e36b3f..c068ae3 100644
--- a/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.js
+++ b/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.js
@@ -27,28 +27,55 @@
 			"default": frappe.datetime.get_today()
 		},
 		{
-			"fieldname":"sales_order",
-			"label": __("Sales Order"),
-			"fieldtype": "MultiSelectList",
+			"fieldname":"customer_group",
+			"label": __("Customer Group"),
+			"fieldtype": "Link",
 			"width": 100,
-			"options": "Sales Order",
-			"get_data": function(txt) {
-				return frappe.db.get_link_options("Sales Order", txt, this.filters());
-			},
-			"filters": () => {
-				return {
-					docstatus: 1,
-					payment_terms_template: ['not in', ['']],
-					company: frappe.query_report.get_filter_value("company"),
-					transaction_date: ['between', [frappe.query_report.get_filter_value("period_start_date"), frappe.query_report.get_filter_value("period_end_date")]]
+			"options": "Customer Group",
+		},
+		{
+			"fieldname":"customer",
+			"label": __("Customer"),
+			"fieldtype": "Link",
+			"width": 100,
+			"options": "Customer",
+			"get_query": () => {
+				var customer_group = frappe.query_report.get_filter_value('customer_group');
+				return{
+					"query": "erpnext.selling.report.payment_terms_status_for_sales_order.payment_terms_status_for_sales_order.get_customers_or_items",
+					"filters": [
+						['Customer', 'disabled', '=', '0'],
+						['Customer Group','name', '=', customer_group]
+					]
 				}
-			},
-			on_change: function(){
-				frappe.query_report.refresh();
+			}
+		},
+		{
+			"fieldname":"item_group",
+			"label": __("Item Group"),
+			"fieldtype": "Link",
+			"width": 100,
+			"options": "Item Group",
+
+		},
+		{
+			"fieldname":"item",
+			"label": __("Item"),
+			"fieldtype": "Link",
+			"width": 100,
+			"options": "Item",
+			"get_query": () => {
+				var item_group = frappe.query_report.get_filter_value('item_group');
+				return{
+					"query": "erpnext.selling.report.payment_terms_status_for_sales_order.payment_terms_status_for_sales_order.get_customers_or_items",
+					"filters": [
+						['Item', 'disabled', '=', '0'],
+						['Item Group','name', '=', item_group]
+					]
+				}
 			}
 		}
 	]
-
 	return filters;
 }
 
diff --git a/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.py b/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.py
index 7f797f6..cb22fb6 100644
--- a/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.py
+++ b/erpnext/selling/report/payment_terms_status_for_sales_order/payment_terms_status_for_sales_order.py
@@ -3,7 +3,7 @@
 
 import frappe
 from frappe import _, qb, query_builder
-from frappe.query_builder import functions
+from frappe.query_builder import Criterion, functions
 
 
 def get_columns():
@@ -15,6 +15,12 @@
 			"options": "Sales Order",
 		},
 		{
+			"label": _("Customer"),
+			"fieldname": "customer",
+			"fieldtype": "Link",
+			"options": "Customer",
+		},
+		{
 			"label": _("Posting Date"),
 			"fieldname": "submitted",
 			"fieldtype": "Date",
@@ -67,6 +73,55 @@
 	return columns
 
 
+def get_descendants_of(doctype, group_name):
+	group_doc = qb.DocType(doctype)
+	# get lft and rgt of group node
+	lft, rgt = (
+		qb.from_(group_doc).select(group_doc.lft, group_doc.rgt).where(group_doc.name == group_name)
+	).run()[0]
+
+	# get all children of group node
+	query = (
+		qb.from_(group_doc).select(group_doc.name).where((group_doc.lft >= lft) & (group_doc.rgt <= rgt))
+	)
+
+	child_nodes = []
+	for x in query.run():
+		child_nodes.append(x[0])
+
+	return child_nodes
+
+
+@frappe.whitelist()
+@frappe.validate_and_sanitize_search_inputs
+def get_customers_or_items(doctype, txt, searchfield, start, page_len, filters):
+	filter_list = []
+	if isinstance(filters, list):
+		for item in filters:
+			if item[0] == doctype:
+				filter_list.append(item)
+			elif item[0] == "Customer Group":
+				if item[3] != "":
+					filter_list.append(
+						[doctype, "customer_group", "in", get_descendants_of("Customer Group", item[3])]
+					)
+			elif item[0] == "Item Group":
+				if item[3] != "":
+					filter_list.append([doctype, "item_group", "in", get_descendants_of("Item Group", item[3])])
+
+	if searchfield and txt:
+		filter_list.append([doctype, searchfield, "like", "%%%s%%" % txt])
+
+	return frappe.desk.reportview.execute(
+		doctype,
+		filters=filter_list,
+		fields=["name", "customer_group"] if doctype == "Customer" else ["name", "item_group"],
+		limit_start=start,
+		limit_page_length=page_len,
+		as_list=True,
+	)
+
+
 def get_conditions(filters):
 	"""
 	Convert filter options to conditions used in query
@@ -79,11 +134,37 @@
 	conditions.start_date = filters.period_start_date or frappe.utils.add_months(
 		conditions.end_date, -1
 	)
-	conditions.sales_order = filters.sales_order or []
 
 	return conditions
 
 
+def build_filter_criterions(filters):
+	filters = frappe._dict(filters) if filters else frappe._dict({})
+	qb_criterions = []
+
+	if filters.customer_group:
+		qb_criterions.append(
+			qb.DocType("Sales Order").customer_group.isin(
+				get_descendants_of("Customer Group", filters.customer_group)
+			)
+		)
+
+	if filters.customer:
+		qb_criterions.append(qb.DocType("Sales Order").customer == filters.customer)
+
+	if filters.item_group:
+		qb_criterions.append(
+			qb.DocType("Sales Order Item").item_group.isin(
+				get_descendants_of("Item Group", filters.item_group)
+			)
+		)
+
+	if filters.item:
+		qb_criterions.append(qb.DocType("Sales Order Item").item_code == filters.item)
+
+	return qb_criterions
+
+
 def get_so_with_invoices(filters):
 	"""
 	Get Sales Order with payment terms template with their associated Invoices
@@ -92,16 +173,23 @@
 
 	so = qb.DocType("Sales Order")
 	ps = qb.DocType("Payment Schedule")
+	soi = qb.DocType("Sales Order Item")
+
+	conditions = get_conditions(filters)
+	filter_criterions = build_filter_criterions(filters)
+
 	datediff = query_builder.CustomFunction("DATEDIFF", ["cur_date", "due_date"])
 	ifelse = query_builder.CustomFunction("IF", ["condition", "then", "else"])
 
-	conditions = get_conditions(filters)
 	query_so = (
 		qb.from_(so)
+		.join(soi)
+		.on(soi.parent == so.name)
 		.join(ps)
 		.on(ps.parent == so.name)
 		.select(
 			so.name,
+			so.customer,
 			so.transaction_date.as_("submitted"),
 			ifelse(datediff(ps.due_date, functions.CurDate()) < 0, "Overdue", "Unpaid").as_("status"),
 			ps.payment_term,
@@ -117,12 +205,10 @@
 			& (so.company == conditions.company)
 			& (so.transaction_date[conditions.start_date : conditions.end_date])
 		)
+		.where(Criterion.all(filter_criterions))
 		.orderby(so.name, so.transaction_date, ps.due_date)
 	)
 
-	if conditions.sales_order != []:
-		query_so = query_so.where(so.name.isin(conditions.sales_order))
-
 	sorders = query_so.run(as_dict=True)
 
 	invoices = []
diff --git a/erpnext/selling/report/payment_terms_status_for_sales_order/test_payment_terms_status_for_sales_order.py b/erpnext/selling/report/payment_terms_status_for_sales_order/test_payment_terms_status_for_sales_order.py
index 89940a6..9d542f5 100644
--- a/erpnext/selling/report/payment_terms_status_for_sales_order/test_payment_terms_status_for_sales_order.py
+++ b/erpnext/selling/report/payment_terms_status_for_sales_order/test_payment_terms_status_for_sales_order.py
@@ -11,10 +11,13 @@
 )
 from erpnext.stock.doctype.item.test_item import create_item
 
-test_dependencies = ["Sales Order", "Item", "Sales Invoice", "Payment Terms Template"]
+test_dependencies = ["Sales Order", "Item", "Sales Invoice", "Payment Terms Template", "Customer"]
 
 
 class TestPaymentTermsStatusForSalesOrder(FrappeTestCase):
+	def tearDown(self):
+		frappe.db.rollback()
+
 	def create_payment_terms_template(self):
 		# create template for 50-50 payments
 		template = None
@@ -48,9 +51,9 @@
 			template.insert()
 		self.template = template
 
-	def test_payment_terms_status(self):
+	def test_01_payment_terms_status(self):
 		self.create_payment_terms_template()
-		item = create_item(item_code="_Test Excavator", is_stock_item=0)
+		item = create_item(item_code="_Test Excavator 1", is_stock_item=0)
 		so = make_sales_order(
 			transaction_date="2021-06-15",
 			delivery_date=add_days("2021-06-15", -30),
@@ -78,13 +81,14 @@
 				"company": "_Test Company",
 				"period_start_date": "2021-06-01",
 				"period_end_date": "2021-06-30",
-				"sales_order": [so.name],
+				"item": item.item_code,
 			}
 		)
 
 		expected_value = [
 			{
 				"name": so.name,
+				"customer": so.customer,
 				"submitted": datetime.date(2021, 6, 15),
 				"status": "Completed",
 				"payment_term": None,
@@ -98,6 +102,7 @@
 			},
 			{
 				"name": so.name,
+				"customer": so.customer,
 				"submitted": datetime.date(2021, 6, 15),
 				"status": "Partly Paid",
 				"payment_term": None,
@@ -132,11 +137,11 @@
 			)
 			doc.insert()
 
-	def test_alternate_currency(self):
+	def test_02_alternate_currency(self):
 		transaction_date = "2021-06-15"
 		self.create_payment_terms_template()
 		self.create_exchange_rate(transaction_date)
-		item = create_item(item_code="_Test Excavator", is_stock_item=0)
+		item = create_item(item_code="_Test Excavator 2", is_stock_item=0)
 		so = make_sales_order(
 			transaction_date=transaction_date,
 			currency="USD",
@@ -166,7 +171,7 @@
 				"company": "_Test Company",
 				"period_start_date": "2021-06-01",
 				"period_end_date": "2021-06-30",
-				"sales_order": [so.name],
+				"item": item.item_code,
 			}
 		)
 
@@ -174,6 +179,7 @@
 		expected_value = [
 			{
 				"name": so.name,
+				"customer": so.customer,
 				"submitted": datetime.date(2021, 6, 15),
 				"status": "Completed",
 				"payment_term": None,
@@ -187,6 +193,7 @@
 			},
 			{
 				"name": so.name,
+				"customer": so.customer,
 				"submitted": datetime.date(2021, 6, 15),
 				"status": "Partly Paid",
 				"payment_term": None,
@@ -200,3 +207,134 @@
 			},
 		]
 		self.assertEqual(data, expected_value)
+
+	def test_03_group_filters(self):
+		transaction_date = "2021-06-15"
+		self.create_payment_terms_template()
+		item1 = create_item(item_code="_Test Excavator 1", is_stock_item=0)
+		item1.item_group = "Products"
+		item1.save()
+
+		so1 = make_sales_order(
+			transaction_date=transaction_date,
+			delivery_date=add_days(transaction_date, -30),
+			item=item1.item_code,
+			qty=1,
+			rate=1000000,
+			do_not_save=True,
+		)
+		so1.po_no = ""
+		so1.taxes_and_charges = ""
+		so1.taxes = ""
+		so1.payment_terms_template = self.template.name
+		so1.save()
+		so1.submit()
+
+		item2 = create_item(item_code="_Test Steel", is_stock_item=0)
+		item2.item_group = "Raw Material"
+		item2.save()
+
+		so2 = make_sales_order(
+			customer="_Test Customer 1",
+			transaction_date=transaction_date,
+			delivery_date=add_days(transaction_date, -30),
+			item=item2.item_code,
+			qty=100,
+			rate=1000,
+			do_not_save=True,
+		)
+		so2.po_no = ""
+		so2.taxes_and_charges = ""
+		so2.taxes = ""
+		so2.payment_terms_template = self.template.name
+		so2.save()
+		so2.submit()
+
+		base_filters = {
+			"company": "_Test Company",
+			"period_start_date": "2021-06-01",
+			"period_end_date": "2021-06-30",
+		}
+
+		expected_value_so1 = [
+			{
+				"name": so1.name,
+				"customer": so1.customer,
+				"submitted": datetime.date(2021, 6, 15),
+				"status": "Overdue",
+				"payment_term": None,
+				"description": "_Test 50-50",
+				"due_date": datetime.date(2021, 6, 30),
+				"invoice_portion": 50.0,
+				"currency": "INR",
+				"base_payment_amount": 500000.0,
+				"paid_amount": 0.0,
+				"invoices": "",
+			},
+			{
+				"name": so1.name,
+				"customer": so1.customer,
+				"submitted": datetime.date(2021, 6, 15),
+				"status": "Overdue",
+				"payment_term": None,
+				"description": "_Test 50-50",
+				"due_date": datetime.date(2021, 7, 15),
+				"invoice_portion": 50.0,
+				"currency": "INR",
+				"base_payment_amount": 500000.0,
+				"paid_amount": 0.0,
+				"invoices": "",
+			},
+		]
+
+		expected_value_so2 = [
+			{
+				"name": so2.name,
+				"customer": so2.customer,
+				"submitted": datetime.date(2021, 6, 15),
+				"status": "Overdue",
+				"payment_term": None,
+				"description": "_Test 50-50",
+				"due_date": datetime.date(2021, 6, 30),
+				"invoice_portion": 50.0,
+				"currency": "INR",
+				"base_payment_amount": 50000.0,
+				"paid_amount": 0.0,
+				"invoices": "",
+			},
+			{
+				"name": so2.name,
+				"customer": so2.customer,
+				"submitted": datetime.date(2021, 6, 15),
+				"status": "Overdue",
+				"payment_term": None,
+				"description": "_Test 50-50",
+				"due_date": datetime.date(2021, 7, 15),
+				"invoice_portion": 50.0,
+				"currency": "INR",
+				"base_payment_amount": 50000.0,
+				"paid_amount": 0.0,
+				"invoices": "",
+			},
+		]
+
+		group_filters = [
+			{"customer_group": "All Customer Groups"},
+			{"item_group": "All Item Groups"},
+			{"item_group": "Products"},
+			{"item_group": "Raw Material"},
+		]
+
+		expected_values_for_group_filters = [
+			expected_value_so1 + expected_value_so2,
+			expected_value_so1 + expected_value_so2,
+			expected_value_so1,
+			expected_value_so2,
+		]
+
+		for idx, g in enumerate(group_filters, 0):
+			# build filter
+			filters = frappe._dict({}).update(base_filters).update(g)
+			with self.subTest(filters=filters):
+				columns, data, message, chart = execute(filters)
+				self.assertEqual(data, expected_values_for_group_filters[idx])
diff --git a/erpnext/setup/doctype/company/test_records.json b/erpnext/setup/doctype/company/test_records.json
index 89be607..19b6ef2 100644
--- a/erpnext/setup/doctype/company/test_records.json
+++ b/erpnext/setup/doctype/company/test_records.json
@@ -8,7 +8,8 @@
 		"domain": "Manufacturing",
 		"chart_of_accounts": "Standard",
 		"default_holiday_list": "_Test Holiday List",
-		"enable_perpetual_inventory": 0
+		"enable_perpetual_inventory": 0,
+		"allow_account_creation_against_child_company": 1
 	},
 	{
 		"abbr": "_TC1",
diff --git a/erpnext/stock/doctype/item/item.json b/erpnext/stock/doctype/item/item.json
index 524c3d1..06da8ee 100644
--- a/erpnext/stock/doctype/item/item.json
+++ b/erpnext/stock/doctype/item/item.json
@@ -645,7 +645,6 @@
   },
   {
    "collapsible": 1,
-   "default": "eval:!doc.is_fixed_asset",
    "fieldname": "sales_details",
    "fieldtype": "Section Break",
    "label": "Sales Details",
@@ -992,4 +991,4 @@
  "states": [],
  "title_field": "item_name",
  "track_changes": 1
-}
\ No newline at end of file
+}
diff --git a/erpnext/stock/doctype/item/item.py b/erpnext/stock/doctype/item/item.py
index 535f565..b2f5fb7 100644
--- a/erpnext/stock/doctype/item/item.py
+++ b/erpnext/stock/doctype/item/item.py
@@ -3,7 +3,7 @@
 
 import copy
 import json
-from typing import List
+from typing import Dict, List, Optional
 
 import frappe
 from frappe import _
@@ -18,6 +18,7 @@
 	now_datetime,
 	nowtime,
 	strip,
+	strip_html,
 )
 from frappe.utils.html_utils import clean_html
 
@@ -69,10 +70,6 @@
 		self.item_code = strip(self.item_code)
 		self.name = self.item_code
 
-	def before_insert(self):
-		if not self.description:
-			self.description = self.item_name
-
 	def after_insert(self):
 		"""set opening stock and item price"""
 		if self.standard_rate:
@@ -86,7 +83,7 @@
 		if not self.item_name:
 			self.item_name = self.item_code
 
-		if not self.description:
+		if not strip_html(cstr(self.description)).strip():
 			self.description = self.item_name
 
 		self.validate_uom()
@@ -890,25 +887,38 @@
 		if self.is_new():
 			return
 
-		fields = ("has_serial_no", "is_stock_item", "valuation_method", "has_batch_no")
+		restricted_fields = ("has_serial_no", "is_stock_item", "valuation_method", "has_batch_no")
 
-		values = frappe.db.get_value("Item", self.name, fields, as_dict=True)
+		values = frappe.db.get_value("Item", self.name, restricted_fields, as_dict=True)
+		if not values:
+			return
+
 		if not values.get("valuation_method") and self.get("valuation_method"):
 			values["valuation_method"] = (
 				frappe.db.get_single_value("Stock Settings", "valuation_method") or "FIFO"
 			)
 
-		if values:
-			for field in fields:
-				if cstr(self.get(field)) != cstr(values.get(field)):
-					if self.check_if_linked_document_exists(field):
-						frappe.throw(
-							_(
-								"As there are existing transactions against item {0}, you can not change the value of {1}"
-							).format(self.name, frappe.bold(self.meta.get_label(field)))
-						)
+		changed_fields = [
+			field for field in restricted_fields if cstr(self.get(field)) != cstr(values.get(field))
+		]
+		if not changed_fields:
+			return
 
-	def check_if_linked_document_exists(self, field):
+		if linked_doc := self._get_linked_submitted_documents(changed_fields):
+			changed_field_labels = [frappe.bold(self.meta.get_label(f)) for f in changed_fields]
+			msg = _(
+				"As there are existing submitted transactions against item {0}, you can not change the value of {1}."
+			).format(self.name, ", ".join(changed_field_labels))
+
+			if linked_doc and isinstance(linked_doc, dict):
+				msg += "<br>"
+				msg += _("Example of a linked document: {0}").format(
+					frappe.get_desk_link(linked_doc.doctype, linked_doc.docname)
+				)
+
+			frappe.throw(msg, title=_("Linked with submitted documents"))
+
+	def _get_linked_submitted_documents(self, changed_fields: List[str]) -> Optional[Dict[str, str]]:
 		linked_doctypes = [
 			"Delivery Note Item",
 			"Sales Invoice Item",
@@ -921,7 +931,7 @@
 
 		# For "Is Stock Item", following doctypes is important
 		# because reserved_qty, ordered_qty and requested_qty updated from these doctypes
-		if field == "is_stock_item":
+		if "is_stock_item" in changed_fields:
 			linked_doctypes += [
 				"Sales Order Item",
 				"Purchase Order Item",
@@ -940,11 +950,21 @@
 				"Sales Invoice Item",
 			):
 				# If Invoice has Stock impact, only then consider it.
-				if self.stock_ledger_created():
-					return True
+				if linked_doc := frappe.db.get_value(
+					"Stock Ledger Entry",
+					{"item_code": self.name, "is_cancelled": 0},
+					["voucher_no as docname", "voucher_type as doctype"],
+					as_dict=True,
+				):
+					return linked_doc
 
-			elif frappe.db.get_value(doctype, filters):
-				return True
+			elif linked_doc := frappe.db.get_value(
+				doctype,
+				filters,
+				["parent as docname", "parenttype as doctype"],
+				as_dict=True,
+			):
+				return linked_doc
 
 	def validate_auto_reorder_enabled_in_stock_settings(self):
 		if self.reorder_levels:
diff --git a/erpnext/stock/doctype/item/item_dashboard.py b/erpnext/stock/doctype/item/item_dashboard.py
index 3caed02..897acb7 100644
--- a/erpnext/stock/doctype/item/item_dashboard.py
+++ b/erpnext/stock/doctype/item/item_dashboard.py
@@ -31,7 +31,7 @@
 			},
 			{"label": _("Manufacture"), "items": ["Production Plan", "Work Order", "Item Manufacturer"]},
 			{"label": _("Traceability"), "items": ["Serial No", "Batch"]},
-			{"label": _("Move"), "items": ["Stock Entry"]},
+			{"label": _("Stock Movement"), "items": ["Stock Entry", "Stock Reconciliation"]},
 			{"label": _("E-commerce"), "items": ["Website Item"]},
 		],
 	}
diff --git a/erpnext/stock/doctype/item/test_item.py b/erpnext/stock/doctype/item/test_item.py
index 328d937..aa0a549 100644
--- a/erpnext/stock/doctype/item/test_item.py
+++ b/erpnext/stock/doctype/item/test_item.py
@@ -744,6 +744,40 @@
 		self.assertTrue(get_data(warehouse="_Test Warehouse - _TC"))
 		self.assertTrue(get_data(item_group="All Item Groups"))
 
+	def test_empty_description(self):
+		item = make_item(properties={"description": "<p></p>"})
+		self.assertEqual(item.description, item.item_name)
+		item.description = ""
+		item.save()
+		self.assertEqual(item.description, item.item_name)
+
+	def test_item_type_field_change(self):
+		"""Check if critical fields like `is_stock_item`, `has_batch_no` are not changed if transactions exist."""
+		from erpnext.accounts.doctype.purchase_invoice.test_purchase_invoice import make_purchase_invoice
+		from erpnext.stock.doctype.delivery_note.test_delivery_note import create_delivery_note
+		from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import make_purchase_receipt
+		from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
+
+		transaction_creators = [
+			lambda i: make_purchase_receipt(item_code=i),
+			lambda i: make_purchase_invoice(item_code=i, update_stock=1),
+			lambda i: make_stock_entry(item_code=i, qty=1, target="_Test Warehouse - _TC"),
+			lambda i: create_delivery_note(item_code=i),
+		]
+
+		properties = {"has_batch_no": 0, "allow_negative_stock": 1, "valuation_rate": 10}
+		for transaction_creator in transaction_creators:
+			item = make_item(properties=properties)
+			transaction = transaction_creator(item.name)
+			item.has_batch_no = 1
+			self.assertRaises(frappe.ValidationError, item.save)
+
+			transaction.cancel()
+			# should be allowed now
+			item.reload()
+			item.has_batch_no = 1
+			item.save()
+
 
 def set_item_variant_settings(fields):
 	doc = frappe.get_doc("Item Variant Settings")
diff --git a/erpnext/stock/doctype/pick_list/test_pick_list.py b/erpnext/stock/doctype/pick_list/test_pick_list.py
index ec5011b..27b06d2 100644
--- a/erpnext/stock/doctype/pick_list/test_pick_list.py
+++ b/erpnext/stock/doctype/pick_list/test_pick_list.py
@@ -8,7 +8,7 @@
 
 from frappe.tests.utils import FrappeTestCase
 
-from erpnext.stock.doctype.item.test_item import create_item
+from erpnext.stock.doctype.item.test_item import create_item, make_item
 from erpnext.stock.doctype.pick_list.pick_list import create_delivery_note
 from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import make_purchase_receipt
 from erpnext.stock.doctype.stock_reconciliation.stock_reconciliation import (
@@ -18,6 +18,7 @@
 
 class TestPickList(FrappeTestCase):
 	def test_pick_list_picks_warehouse_for_each_item(self):
+		item_code = make_item().name
 		try:
 			frappe.get_doc(
 				{
@@ -27,7 +28,7 @@
 					"expense_account": "Temporary Opening - _TC",
 					"items": [
 						{
-							"item_code": "_Test Item",
+							"item_code": item_code,
 							"warehouse": "_Test Warehouse - _TC",
 							"valuation_rate": 100,
 							"qty": 5,
@@ -47,7 +48,7 @@
 				"purpose": "Delivery",
 				"locations": [
 					{
-						"item_code": "_Test Item",
+						"item_code": item_code,
 						"qty": 5,
 						"stock_qty": 5,
 						"conversion_factor": 1,
@@ -59,7 +60,7 @@
 		)
 		pick_list.set_item_locations()
 
-		self.assertEqual(pick_list.locations[0].item_code, "_Test Item")
+		self.assertEqual(pick_list.locations[0].item_code, item_code)
 		self.assertEqual(pick_list.locations[0].warehouse, "_Test Warehouse - _TC")
 		self.assertEqual(pick_list.locations[0].qty, 5)
 
@@ -270,6 +271,8 @@
 		pr2.cancel()
 
 	def test_pick_list_for_items_from_multiple_sales_orders(self):
+
+		item_code = make_item().name
 		try:
 			frappe.get_doc(
 				{
@@ -279,7 +282,7 @@
 					"expense_account": "Temporary Opening - _TC",
 					"items": [
 						{
-							"item_code": "_Test Item",
+							"item_code": item_code,
 							"warehouse": "_Test Warehouse - _TC",
 							"valuation_rate": 100,
 							"qty": 10,
@@ -295,7 +298,14 @@
 				"doctype": "Sales Order",
 				"customer": "_Test Customer",
 				"company": "_Test Company",
-				"items": [{"item_code": "_Test Item", "qty": 10, "delivery_date": frappe.utils.today()}],
+				"items": [
+					{
+						"item_code": item_code,
+						"qty": 10,
+						"delivery_date": frappe.utils.today(),
+						"warehouse": "_Test Warehouse - _TC",
+					}
+				],
 			}
 		)
 		sales_order.submit()
@@ -309,7 +319,7 @@
 				"purpose": "Delivery",
 				"locations": [
 					{
-						"item_code": "_Test Item",
+						"item_code": item_code,
 						"qty": 5,
 						"stock_qty": 5,
 						"conversion_factor": 1,
@@ -317,7 +327,7 @@
 						"sales_order_item": "_T-Sales Order-1_item",
 					},
 					{
-						"item_code": "_Test Item",
+						"item_code": item_code,
 						"qty": 5,
 						"stock_qty": 5,
 						"conversion_factor": 1,
@@ -329,18 +339,19 @@
 		)
 		pick_list.set_item_locations()
 
-		self.assertEqual(pick_list.locations[0].item_code, "_Test Item")
+		self.assertEqual(pick_list.locations[0].item_code, item_code)
 		self.assertEqual(pick_list.locations[0].warehouse, "_Test Warehouse - _TC")
 		self.assertEqual(pick_list.locations[0].qty, 5)
 		self.assertEqual(pick_list.locations[0].sales_order_item, "_T-Sales Order-1_item")
 
-		self.assertEqual(pick_list.locations[1].item_code, "_Test Item")
+		self.assertEqual(pick_list.locations[1].item_code, item_code)
 		self.assertEqual(pick_list.locations[1].warehouse, "_Test Warehouse - _TC")
 		self.assertEqual(pick_list.locations[1].qty, 5)
 		self.assertEqual(pick_list.locations[1].sales_order_item, sales_order.items[0].name)
 
 	def test_pick_list_for_items_with_multiple_UOM(self):
-		purchase_receipt = make_purchase_receipt(item_code="_Test Item", qty=10)
+		item_code = make_item().name
+		purchase_receipt = make_purchase_receipt(item_code=item_code, qty=10)
 		purchase_receipt.submit()
 
 		sales_order = frappe.get_doc(
@@ -350,17 +361,19 @@
 				"company": "_Test Company",
 				"items": [
 					{
-						"item_code": "_Test Item",
+						"item_code": item_code,
 						"qty": 1,
 						"conversion_factor": 5,
 						"stock_qty": 5,
 						"delivery_date": frappe.utils.today(),
+						"warehouse": "_Test Warehouse - _TC",
 					},
 					{
-						"item_code": "_Test Item",
+						"item_code": item_code,
 						"qty": 1,
 						"conversion_factor": 1,
 						"delivery_date": frappe.utils.today(),
+						"warehouse": "_Test Warehouse - _TC",
 					},
 				],
 			}
@@ -376,7 +389,7 @@
 				"purpose": "Delivery",
 				"locations": [
 					{
-						"item_code": "_Test Item",
+						"item_code": item_code,
 						"qty": 2,
 						"stock_qty": 1,
 						"conversion_factor": 0.5,
@@ -384,7 +397,7 @@
 						"sales_order_item": sales_order.items[0].name,
 					},
 					{
-						"item_code": "_Test Item",
+						"item_code": item_code,
 						"qty": 1,
 						"stock_qty": 1,
 						"conversion_factor": 1,
diff --git a/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.py b/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.py
index ec1d140..54c00d1 100644
--- a/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.py
+++ b/erpnext/stock/doctype/repost_item_valuation/repost_item_valuation.py
@@ -61,6 +61,22 @@
 
 		repost(self)
 
+	def before_cancel(self):
+		self.check_pending_repost_against_cancelled_transaction()
+
+	def check_pending_repost_against_cancelled_transaction(self):
+		if self.status not in ("Queued", "In Progress"):
+			return
+
+		if not (self.voucher_no and self.voucher_no):
+			return
+
+		transaction_status = frappe.db.get_value(self.voucher_type, self.voucher_no, "docstatus")
+		if transaction_status == 2:
+			msg = _("Cannot cancel as processing of cancelled documents is  pending.")
+			msg += "<br>" + _("Please try again in an hour.")
+			frappe.throw(msg, title=_("Pending processing"))
+
 	@frappe.whitelist()
 	def restart_reposting(self):
 		self.set_status("Queued", write=False)
diff --git a/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py b/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py
index f3bebad..55117ce 100644
--- a/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py
+++ b/erpnext/stock/doctype/repost_item_valuation/test_repost_item_valuation.py
@@ -1,20 +1,25 @@
 # Copyright (c) 2021, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
 
-import unittest
 
 import frappe
+from frappe.tests.utils import FrappeTestCase
 from frappe.utils import nowdate
 
 from erpnext.controllers.stock_controller import create_item_wise_repost_entries
+from erpnext.stock.doctype.item.test_item import make_item
 from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import make_purchase_receipt
 from erpnext.stock.doctype.repost_item_valuation.repost_item_valuation import (
 	in_configured_timeslot,
 )
+from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
 from erpnext.stock.utils import PendingRepostingError
 
 
-class TestRepostItemValuation(unittest.TestCase):
+class TestRepostItemValuation(FrappeTestCase):
+	def tearDown(self):
+		frappe.flags.dont_execute_stock_reposts = False
+
 	def test_repost_time_slot(self):
 		repost_settings = frappe.get_doc("Stock Reposting Settings")
 
@@ -162,3 +167,22 @@
 		self.assertRaises(PendingRepostingError, stock_settings.save)
 
 		riv.set_status("Skipped")
+
+	def test_prevention_of_cancelled_transaction_riv(self):
+		frappe.flags.dont_execute_stock_reposts = True
+
+		item = make_item()
+		warehouse = "_Test Warehouse - _TC"
+		old = make_stock_entry(item_code=item.name, to_warehouse=warehouse, qty=2, rate=5)
+		_new = make_stock_entry(item_code=item.name, to_warehouse=warehouse, qty=5, rate=10)
+
+		old.cancel()
+
+		riv = frappe.get_last_doc(
+			"Repost Item Valuation", {"voucher_type": old.doctype, "voucher_no": old.name}
+		)
+		self.assertRaises(frappe.ValidationError, riv.cancel)
+
+		riv.db_set("status", "Skipped")
+		riv.reload()
+		riv.cancel()  # it should cancel now
diff --git a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.js b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.js
index 42cc7e6..23018aa 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.js
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.js
@@ -3,6 +3,6 @@
 
 frappe.ui.form.on('Stock Ledger Entry', {
 	refresh: function(frm) {
-
+		frm.page.btn_secondary.hide()
 	}
 });
diff --git a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
index 5c1da42..329cd7d 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
+++ b/erpnext/stock/doctype/stock_ledger_entry/stock_ledger_entry.py
@@ -209,6 +209,11 @@
 					msg += "<br>" + "<br>".join(authorized_users)
 					frappe.throw(msg, BackDatedStockTransaction, title=_("Backdated Stock Entry"))
 
+	def on_cancel(self):
+		msg = _("Individual Stock Ledger Entry cannot be cancelled.")
+		msg += "<br>" + _("Please cancel related transaction.")
+		frappe.throw(msg)
+
 
 def on_doctype_update():
 	if not frappe.db.has_index("tabStock Ledger Entry", "posting_sort_index"):
diff --git a/erpnext/stock/doctype/warehouse/test_warehouse.py b/erpnext/stock/doctype/warehouse/test_warehouse.py
index 1e9d01a..5a7228a 100644
--- a/erpnext/stock/doctype/warehouse/test_warehouse.py
+++ b/erpnext/stock/doctype/warehouse/test_warehouse.py
@@ -38,6 +38,16 @@
 			self.assertEqual(p_warehouse.name, child_warehouse.parent_warehouse)
 			self.assertEqual(child_warehouse.is_group, 0)
 
+	def test_naming(self):
+		company = "Wind Power LLC"
+		warehouse_name = "Named Warehouse - WP"
+		wh = frappe.get_doc(doctype="Warehouse", warehouse_name=warehouse_name, company=company).insert()
+		self.assertEqual(wh.name, warehouse_name)
+
+		warehouse_name = "Unnamed Warehouse"
+		wh = frappe.get_doc(doctype="Warehouse", warehouse_name=warehouse_name, company=company).insert()
+		self.assertIn(warehouse_name, wh.name)
+
 	def test_unlinking_warehouse_from_item_defaults(self):
 		company = "_Test Company"
 
diff --git a/erpnext/stock/doctype/warehouse/warehouse.py b/erpnext/stock/doctype/warehouse/warehouse.py
index c892ba3..3b18a9a 100644
--- a/erpnext/stock/doctype/warehouse/warehouse.py
+++ b/erpnext/stock/doctype/warehouse/warehouse.py
@@ -21,8 +21,9 @@
 			suffix = " - " + frappe.get_cached_value("Company", self.company, "abbr")
 			if not self.warehouse_name.endswith(suffix):
 				self.name = self.warehouse_name + suffix
-		else:
-			self.name = self.warehouse_name
+				return
+
+		self.name = self.warehouse_name
 
 	def onload(self):
 		"""load account name for General Ledger Report"""
diff --git a/erpnext/stock/stock_ledger.py b/erpnext/stock/stock_ledger.py
index 3e0ddab..b7fd65b 100644
--- a/erpnext/stock/stock_ledger.py
+++ b/erpnext/stock/stock_ledger.py
@@ -178,9 +178,9 @@
 				)
 			if repost_entry.status == "Queued":
 				doc = frappe.get_doc("Repost Item Valuation", repost_entry.name)
+				doc.status = "Skipped"
 				doc.flags.ignore_permissions = True
 				doc.cancel()
-				doc.delete()
 
 
 def set_as_cancel(voucher_type, voucher_no):
diff --git a/erpnext/templates/includes/projects/project_row.html b/erpnext/templates/includes/projects/project_row.html
index a256fbd..686637a 100644
--- a/erpnext/templates/includes/projects/project_row.html
+++ b/erpnext/templates/includes/projects/project_row.html
@@ -1,11 +1,11 @@
 {% if doc.status == "Open" %}
   <div class="web-list-item transaction-list-item">
     <div class="row">
-      <div class="col-xs-2">
+      <div class="col-xs-2 project-link">
         <a class="transaction-item-link" href="/projects?project={{ doc.name | urlencode }}">Link</a>
         {{ doc.name }}
       </div>
-      <div class="col-xs-2">
+      <div class="col-xs-2 project-name">
         {{ doc.project_name }}
       </div>
       <div class="col-xs-3 text-center">
@@ -25,7 +25,7 @@
       </div>
       {% if doc["_assign"] %}
         {% set assigned_users = json.loads(doc["_assign"])%}
-        <div class="col-xs-2">
+        <div class="col-xs-2 project-users">
           {% for user in assigned_users %}
             {% set user_details = frappe
               .db
@@ -46,7 +46,7 @@
           {% endfor %}
         </div>
       {% endif %}
-      <div class="col-xs-3 text-right small text-muted">
+      <div class="col-xs-3 text-right small text-muted project-modified-on">
         {{ frappe.utils.pretty_date(doc.modified) }}
       </div>
     </div>
diff --git a/erpnext/templates/pages/courses.html b/erpnext/templates/pages/courses.html
deleted file mode 100644
index 6592f7a..0000000
--- a/erpnext/templates/pages/courses.html
+++ /dev/null
@@ -1,11 +0,0 @@
-{% extends "templates/web.html" %}
-
-{% block header %}
-	<h1> About </h1>
-{% endblock %}
-
-{% block page_content %}
-
-<p class="post-description"> {{ intro }} </p>
-
-{% endblock %}
diff --git a/erpnext/templates/pages/courses.py b/erpnext/templates/pages/courses.py
deleted file mode 100644
index fb1af38..0000000
--- a/erpnext/templates/pages/courses.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
-# License: GNU General Public License v3. See license.txt
-
-
-import frappe
-
-
-def get_context(context):
-	course = frappe.get_doc("Course", frappe.form_dict.course)
-	sidebar_title = course.name
-
-	context.no_cache = 1
-	context.show_sidebar = True
-	course = frappe.get_doc("Course", frappe.form_dict.course)
-	course.has_permission("read")
-	context.doc = course
-	context.sidebar_title = sidebar_title
-	context.intro = course.course_intro
diff --git a/erpnext/translations/fr.csv b/erpnext/translations/fr.csv
index 3cdae45..db454de 100644
--- a/erpnext/translations/fr.csv
+++ b/erpnext/translations/fr.csv
@@ -285,7 +285,7 @@
 "Asset {0} cannot be scrapped, as it is already {1}","L'actif {0} ne peut pas être mis au rebut, car il est déjà {1}",
 Asset {0} does not belong to company {1},L'actif {0} ne fait pas partie à la société {1},
 Asset {0} must be submitted,L'actif {0} doit être soumis,
-Assets,Les atouts,
+Assets,Actifs - Immo.,
 Assign,Assigner,
 Assign Salary Structure,Affecter la structure salariale,
 Assign To,Attribuer À,
@@ -1211,7 +1211,7 @@
 Help Results for,Aide Résultats pour,
 High,Haut,
 High Sensitivity,Haute sensibilité,
-Hold,Tenir,
+Hold,Mettre en attente,
 Hold Invoice,Facture en attente,
 Holiday,Vacances,
 Holiday List,Liste de vacances,
@@ -4240,7 +4240,7 @@
 From date cannot be greater than To date,La Date Initiale ne peut pas être postérieure à la Date Finale,
 Group by,Grouper Par,
 In stock,En stock,
-Item name,Nom de l'article,
+Item name,Libellé de l'article,
 Loan amount is mandatory,Le montant du prêt est obligatoire,
 Minimum Qty,Quantité minimum,
 More details,Plus de détails,
@@ -5473,7 +5473,7 @@
 PUR-ORD-.YYYY.-,PUR-ORD-.YYYY.-,
 Get Items from Open Material Requests,Obtenir des Articles de Demandes Matérielles Ouvertes,
 Fetch items based on Default Supplier.,Récupérez les articles en fonction du fournisseur par défaut.,
-Required By,Requis Par,
+Required By,Requis pour le,
 Order Confirmation No,No de confirmation de commande,
 Order Confirmation Date,Date de confirmation de la commande,
 Customer Mobile No,N° de Portable du Client,
@@ -7223,8 +7223,8 @@
 Scrap %,% de Rebut,
 Original Item,Article original,
 BOM Operation,Opération LDM,
-Operation Time ,Moment de l&#39;opération,
-In minutes,En quelques minutes,
+Operation Time ,Durée de l&#39;opération,
+In minutes,En minutes,
 Batch Size,Taille du lot,
 Base Hour Rate(Company Currency),Taux Horaire de Base (Devise de la Société),
 Operating Cost(Company Currency),Coût d'Exploitation (Devise Société),
@@ -9267,7 +9267,7 @@
 Amount Delivered,Montant livré,
 Delay (in Days),Retard (en jours),
 Group by Sales Order,Regrouper par commande client,
- Sales Value,La valeur des ventes,
+Sales Value,La valeur des ventes,
 Stock Qty vs Serial No Count,Quantité de stock vs numéro de série,
 Serial No Count,Numéro de série,
 Work Order Summary,Résumé de l&#39;ordre de travail,
@@ -9647,7 +9647,7 @@
 Validate Selling Price for Item Against Purchase Rate or Valuation Rate,Valider le prix de vente de l&#39;article par rapport au taux d&#39;achat ou au taux de valorisation,
 Hide Customer's Tax ID from Sales Transactions,Masquer le numéro d&#39;identification fiscale du client dans les transactions de vente,
 "The percentage you are allowed to receive or deliver more against the quantity ordered. For example, if you have ordered 100 units, and your Allowance is 10%, then you are allowed to receive 110 units.","Le pourcentage que vous êtes autorisé à recevoir ou à livrer plus par rapport à la quantité commandée. Par exemple, si vous avez commandé 100 unités et que votre allocation est de 10%, vous êtes autorisé à recevoir 110 unités.",
-Action If Quality Inspection Is Not Submitted,Action si l&#39;inspection de la qualité n&#39;est pas soumise,
+Action If Quality Inspection Is Not Submitted,Action si l&#39;inspection qualité n&#39;est pas soumise,
 Auto Insert Price List Rate If Missing,Taux de liste de prix d&#39;insertion automatique s&#39;il est manquant,
 Automatically Set Serial Nos Based on FIFO,Définir automatiquement les numéros de série en fonction de FIFO,
 Set Qty in Transactions Based on Serial No Input,Définir la quantité dans les transactions en fonction du numéro de série,
@@ -9838,3 +9838,35 @@
 Creating Purchase Order ...,Création d&#39;une commande d&#39;achat ...,
 "Select a Supplier from the Default Suppliers of the items below. On selection, a Purchase Order will be made against items belonging to the selected Supplier only.","Sélectionnez un fournisseur parmi les fournisseurs par défaut des articles ci-dessous. Lors de la sélection, un bon de commande sera effectué contre des articles appartenant uniquement au fournisseur sélectionné.",
 Row #{}: You must select {} serial numbers for item {}.,Ligne n ° {}: vous devez sélectionner {} numéros de série pour l&#39;article {}.,
+Update Rate as per Last Purchase,Mettre à jour avec les derniers prix d'achats
+Company Shipping Address,Adresse d&#39;expédition
+Shipping Address Details,Détail d&#39;adresse d&#39;expédition
+Company Billing Address,Adresse de la société de facturation
+Supplier Address Details,
+Bank Reconciliation Tool,Outil de réconcialiation d&#39;écritures bancaires
+Supplier Contact,Contact fournisseur
+Subcontracting,Sous traitance
+Order Status,Statut de la commande
+Build,Personnalisations avancées
+Dispatch Address Name,Adresse de livraison intermédiaire
+Amount Eligible for Commission,Montant éligible à comission
+Grant Commission,Eligible aux commissions
+Stock Transactions Settings, Paramétre des transactions
+Role Allowed to Over Deliver/Receive, Rôle autorisé à dépasser cette limite
+Users with this role are allowed to over deliver/receive against orders above the allowance percentage,Rôle Utilisateur qui sont autorisé à livrée/commandé au-delà de la limite
+Over Transfer Allowance,Autorisation de limite de transfert
+Quality Inspection Settings,Paramétre de l&#39;inspection qualité
+Action If Quality Inspection Is Rejected,Action si l'inspection qualité est rejetée
+Disable Serial No And Batch Selector,Désactiver le sélecteur de numéro de lot/série
+Is Rate Adjustment Entry (Debit Note),Est un justement du prix de la note de débit
+Issue a debit note with 0 qty against an existing Sales Invoice,Creer une note de débit avec une quatité à O pour la facture
+Control Historical Stock Transactions,Controle de l&#39;historique des stransaction de stock
+No stock transactions can be created or modified before this date.,Aucune transaction ne peux être créée ou modifié avant cette date.
+Stock transactions that are older than the mentioned days cannot be modified.,Les transactions de stock plus ancienne que le nombre de jours ci-dessus ne peuvent être modifiées
+Role Allowed to Create/Edit Back-dated Transactions,Rôle autorisé à créer et modifier des transactions anti-datée
+"If mentioned, the system will allow only the users with this Role to create or modify any stock transaction earlier than the latest stock transaction for a specific item and warehouse. If set as blank, it allows all users to create/edit back-dated transactions.","LEs utilisateur de ce role pourront creer et modifier des transactions dans le passé. Si vide tout les utilisateurs pourrons le faire"
+Auto Insert Item Price If Missing,Création du prix de l'article dans les listes de prix si abscent
+Update Existing Price List Rate,Mise a jour automatique du prix dans les listes de prix
+Show Barcode Field in Stock Transactions,Afficher le champ Code Barre dans les transactions de stock
+Convert Item Description to Clean HTML in Transactions,Convertir les descriptions d'articles en HTML valide lors des transactions
+Have Default Naming Series for Batch ID?,Nom de série par défaut pour les Lots ou Séries