diff --git a/erpnext/__init__.py b/erpnext/__init__.py
index 39d9a27..0c96d32 100644
--- a/erpnext/__init__.py
+++ b/erpnext/__init__.py
@@ -5,7 +5,7 @@
 from erpnext.hooks import regional_overrides
 from frappe.utils import getdate
 
-__version__ = '13.5.2'
+__version__ = '13.6.0'
 
 def get_default_company(user=None):
 	'''Get default company for user'''
diff --git a/erpnext/accounts/doctype/accounting_dimension/accounting_dimension.py b/erpnext/accounts/doctype/accounting_dimension/accounting_dimension.py
index 7cd1e77..fac28c9 100644
--- a/erpnext/accounts/doctype/accounting_dimension/accounting_dimension.py
+++ b/erpnext/accounts/doctype/accounting_dimension/accounting_dimension.py
@@ -19,7 +19,7 @@
 
 	def validate(self):
 		if self.document_type in core_doctypes_list + ('Accounting Dimension', 'Project',
-				'Cost Center', 'Accounting Dimension Detail', 'Company') :
+				'Cost Center', 'Accounting Dimension Detail', 'Company', 'Account') :
 
 			msg = _("Not allowed to create accounting dimension for {0}").format(self.document_type)
 			frappe.throw(msg)
diff --git a/erpnext/accounts/doctype/dunning/dunning.py b/erpnext/accounts/doctype/dunning/dunning.py
index 7c1a171..c6c6892 100644
--- a/erpnext/accounts/doctype/dunning/dunning.py
+++ b/erpnext/accounts/doctype/dunning/dunning.py
@@ -96,7 +96,7 @@
 	grand_total = 0
 	if rate_of_interest:
 		interest_per_year = flt(outstanding_amount) * flt(rate_of_interest) / 100
-		interest_amount = (interest_per_year * cint(overdue_days)) / 365 
+		interest_amount = (interest_per_year * cint(overdue_days)) / 365
 		grand_total = flt(outstanding_amount) + flt(interest_amount) + flt(dunning_fee)
 	dunning_amount = flt(interest_amount) + flt(dunning_fee)
 	return {
diff --git a/erpnext/accounts/doctype/gl_entry/gl_entry.py b/erpnext/accounts/doctype/gl_entry/gl_entry.py
index 948c513..11465b7 100644
--- a/erpnext/accounts/doctype/gl_entry/gl_entry.py
+++ b/erpnext/accounts/doctype/gl_entry/gl_entry.py
@@ -121,8 +121,7 @@
 
 	def check_pl_account(self):
 		if self.is_opening=='Yes' and \
-				frappe.db.get_value("Account", self.account, "report_type")=="Profit and Loss" and \
-				self.voucher_type not in ['Purchase Invoice', 'Sales Invoice']:
+				frappe.db.get_value("Account", self.account, "report_type")=="Profit and Loss":
 			frappe.throw(_("{0} {1}: 'Profit and Loss' type account {2} not allowed in Opening Entry")
 				.format(self.voucher_type, self.voucher_no, self.account))
 
diff --git a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
index 29f7247..b39022d 100644
--- a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
+++ b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
@@ -854,7 +854,7 @@
  "idx": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-06-16 19:33:51.099386",
+ "modified": "2021-06-16 19:43:51.099386",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Purchase Invoice Item",
diff --git a/erpnext/accounts/report/general_ledger/general_ledger.js b/erpnext/accounts/report/general_ledger/general_ledger.js
index 84f7868..4a551b8 100644
--- a/erpnext/accounts/report/general_ledger/general_ledger.js
+++ b/erpnext/accounts/report/general_ledger/general_ledger.js
@@ -36,16 +36,12 @@
 		{
 			"fieldname":"account",
 			"label": __("Account"),
-			"fieldtype": "Link",
+			"fieldtype": "MultiSelectList",
 			"options": "Account",
-			"get_query": function() {
-				var company = frappe.query_report.get_filter_value('company');
-				return {
-					"doctype": "Account",
-					"filters": {
-						"company": company,
-					}
-				}
+			get_data: function(txt) {
+				return frappe.db.get_link_options('Account', txt, {
+					company: frappe.query_report.get_filter_value("company")
+				});
 			}
 		},
 		{
@@ -135,7 +131,9 @@
 			"label": __("Cost Center"),
 			"fieldtype": "MultiSelectList",
 			get_data: function(txt) {
-				return frappe.db.get_link_options('Cost Center', txt);
+				return frappe.db.get_link_options('Cost Center', txt, {
+					company: frappe.query_report.get_filter_value("company")
+				});
 			}
 		},
 		{
@@ -143,7 +141,9 @@
 			"label": __("Project"),
 			"fieldtype": "MultiSelectList",
 			get_data: function(txt) {
-				return frappe.db.get_link_options('Project', txt);
+				return frappe.db.get_link_options('Project', txt, {
+					company: frappe.query_report.get_filter_value("company")
+				});
 			}
 		},
 		{
diff --git a/erpnext/accounts/report/general_ledger/general_ledger.py b/erpnext/accounts/report/general_ledger/general_ledger.py
index 562df4f..744ada9 100644
--- a/erpnext/accounts/report/general_ledger/general_ledger.py
+++ b/erpnext/accounts/report/general_ledger/general_ledger.py
@@ -49,8 +49,12 @@
 	if not filters.get("from_date") and not filters.get("to_date"):
 		frappe.throw(_("{0} and {1} are mandatory").format(frappe.bold(_("From Date")), frappe.bold(_("To Date"))))
 
-	if filters.get("account") and not account_details.get(filters.account):
-		frappe.throw(_("Account {0} does not exists").format(filters.account))
+	for account in filters.account:
+		if not account_details.get(account):
+			frappe.throw(_("Account {0} does not exists").format(account))
+			
+	if filters.get('account'):
+		filters.account = frappe.parse_json(filters.get('account'))
 
 	if (filters.get("account") and filters.get("group_by") == _('Group by Account')
 		and account_details[filters.account].is_group == 0):
@@ -87,7 +91,19 @@
 		account_currency = None
 
 		if filters.get("account"):
-			account_currency = get_account_currency(filters.account)
+			if len(filters.get("account")) == 1:	
+				account_currency = get_account_currency(filters.account[0])
+			else:
+				currency = get_account_currency(filters.account[0])
+				is_same_account_currency = True
+				for account in filters.get("account"):
+					if get_account_currency(account) != currency:
+						is_same_account_currency = False
+						break
+
+				if is_same_account_currency:
+					account_currency = currency
+
 		elif filters.get("party"):
 			gle_currency = frappe.db.get_value(
 				"GL Entry", {
@@ -205,10 +221,10 @@
 
 def get_conditions(filters):
 	conditions = []
-	if filters.get("account") and not filters.get("include_dimensions"):
-		lft, rgt = frappe.db.get_value("Account", filters["account"], ["lft", "rgt"])
-		conditions.append("""account in (select name from tabAccount
-			where lft>=%s and rgt<=%s and docstatus<2)""" % (lft, rgt))
+
+	if filters.get("account"):
+		filters.account = get_accounts_with_children(filters.account)
+		conditions.append("account in %(account)s")
 
 	if filters.get("cost_center"):
 		filters.cost_center = get_cost_centers_with_children(filters.cost_center)
@@ -266,6 +282,20 @@
 
 	return "and {}".format(" and ".join(conditions)) if conditions else ""
 
+def get_accounts_with_children(accounts):
+	if not isinstance(accounts, list):
+		accounts = [d.strip() for d in accounts.strip().split(',') if d]
+
+	all_accounts = []
+	for d in accounts:
+		if frappe.db.exists("Account", d):
+			lft, rgt = frappe.db.get_value("Account", d, ["lft", "rgt"])
+			children = frappe.get_all("Account", filters={"lft": [">=", lft], "rgt": ["<=", rgt]})
+			all_accounts += [c.name for c in children]
+		else:
+			frappe.throw(_("Account: {0} does not exist").format(d))
+
+	return list(set(all_accounts))
 
 def get_data_with_opening_closing(filters, account_details, accounting_dimensions, gl_entries):
 	data = []
diff --git a/erpnext/buying/doctype/buying_settings/buying_settings.json b/erpnext/buying/doctype/buying_settings/buying_settings.json
index 838a9ab..b9c77d5 100644
--- a/erpnext/buying/doctype/buying_settings/buying_settings.json
+++ b/erpnext/buying/doctype/buying_settings/buying_settings.json
@@ -123,7 +123,7 @@
  "index_web_pages_for_search": 1,
  "issingle": 1,
  "links": [],
- "modified": "2021-06-23 19:40:00.120822",
+ "modified": "2021-06-24 10:38:28.934525",
  "modified_by": "Administrator",
  "module": "Buying",
  "name": "Buying Settings",
diff --git a/erpnext/change_log/v13/v13_6_0.md b/erpnext/change_log/v13/v13_6_0.md
new file mode 100644
index 0000000..d881b27
--- /dev/null
+++ b/erpnext/change_log/v13/v13_6_0.md
@@ -0,0 +1,72 @@
+# Version 13.6.0 Release Notes
+
+### Features & Enhancements
+
+- Job Card Enhancements ([#24523](https://github.com/frappe/erpnext/pull/24523))
+- Implement multi-account selection in General Ledger([#26044](https://github.com/frappe/erpnext/pull/26044))
+- Fetching of qty as per received qty from PR to PI ([#26184](https://github.com/frappe/erpnext/pull/26184))
+- Subcontract code refactor and enhancement ([#25878](https://github.com/frappe/erpnext/pull/25878))
+- Employee Grievance ([#25705](https://github.com/frappe/erpnext/pull/25705))
+- Add Inactive status to Employee ([#26030](https://github.com/frappe/erpnext/pull/26030))
+- Incorrect valuation rate report for serialized items ([#25696](https://github.com/frappe/erpnext/pull/25696))
+- Update cost updates operation time and hour rates in BOM ([#25891](https://github.com/frappe/erpnext/pull/25891))
+
+### Fixes
+
+- Precision rate for packed items in internal transfers ([#26046](https://github.com/frappe/erpnext/pull/26046))
+- User is not able to change item tax template ([#26176](https://github.com/frappe/erpnext/pull/26176))
+- Insufficient permission for Dunning error ([#26092](https://github.com/frappe/erpnext/pull/26092))
+- Validate Product Bundle for existing transactions before deletion ([#25978](https://github.com/frappe/erpnext/pull/25978))
+- Auto unlink warehouse from item on delete ([#26073](https://github.com/frappe/erpnext/pull/26073))
+- Employee Inactive status implications ([#26245](https://github.com/frappe/erpnext/pull/26245))
+- Fetch batch items in stock reconciliation ([#26230](https://github.com/frappe/erpnext/pull/26230))
+- Disabled cancellation for sales order if linked to drafted sales invoice ([#26125](https://github.com/frappe/erpnext/pull/26125))
+- Sort website products by weightage mentioned in Item master ([#26134](https://github.com/frappe/erpnext/pull/26134))
+- Added freeze when trying to stop work order (#26192) ([#26196](https://github.com/frappe/erpnext/pull/26196))
+- Accounting Dimensions for payroll entry accrual Journal Entry ([#26083](https://github.com/frappe/erpnext/pull/26083))
+- Staffing plan vacancies data type issue ([#25941](https://github.com/frappe/erpnext/pull/25941))
+- Unable to enter score in Assessment Result details grid ([#25945](https://github.com/frappe/erpnext/pull/25945))
+- Report Subcontracted Raw Materials to be Transferred ([#26011](https://github.com/frappe/erpnext/pull/26011))
+- Label for enabling ledger posting of change amount ([#26070](https://github.com/frappe/erpnext/pull/26070))
+- Training event ([#26071](https://github.com/frappe/erpnext/pull/26071))
+- Rate not able to change in purchase order ([#26122](https://github.com/frappe/erpnext/pull/26122))
+- Error while fetching item taxes ([#26220](https://github.com/frappe/erpnext/pull/26220))
+- Check for duplicate payment terms in Payment Term Template ([#26003](https://github.com/frappe/erpnext/pull/26003))
+- Removed values out of sync validation from stock transactions ([#26229](https://github.com/frappe/erpnext/pull/26229))
+- Fetching employee in payroll entry ([#26269](https://github.com/frappe/erpnext/pull/26269))
+- Filter Cost Center and Project drop-down lists by Company ([#26045](https://github.com/frappe/erpnext/pull/26045))
+- Website item group logic for product listing in Item Group pages ([#26170](https://github.com/frappe/erpnext/pull/26170))
+- Chart not visible for First Response Time reports ([#26032](https://github.com/frappe/erpnext/pull/26032))
+- Incorrect billed qty in Sales Order analytics ([#26095](https://github.com/frappe/erpnext/pull/26095))
+- Material request and supplier quotation not linked if supplier quotation created from supplier portal ([#26023](https://github.com/frappe/erpnext/pull/26023))
+- Update leave allocation after submit ([#26191](https://github.com/frappe/erpnext/pull/26191))
+- Taxes on Internal Transfer payment entry ([#26188](https://github.com/frappe/erpnext/pull/26188))
+- Precision rate for packed items (bp #26046) ([#26217](https://github.com/frappe/erpnext/pull/26217))
+- Fixed rounding off ordered percent to 100 in condition ([#26152](https://github.com/frappe/erpnext/pull/26152))
+- Sanctioned loan amount limit check ([#26108](https://github.com/frappe/erpnext/pull/26108))
+- Purchase receipt gl entries with same item code ([#26202](https://github.com/frappe/erpnext/pull/26202))
+- Taxable value for invoices with additional discount ([#25906](https://github.com/frappe/erpnext/pull/25906))
+- Correct South Africa VAT Rate (Updated) ([#25894](https://github.com/frappe/erpnext/pull/25894))
+- Remove response_by and resolution_by if sla is removed ([#25997](https://github.com/frappe/erpnext/pull/25997))
+- POS loyalty card alignment ([#26051](https://github.com/frappe/erpnext/pull/26051))
+- Flaky test for Report Subcontracted Raw materials to be transferred ([#26043](https://github.com/frappe/erpnext/pull/26043))
+- Export invoices not visible in GSTR-1 report ([#26143](https://github.com/frappe/erpnext/pull/26143))
+- Account filter not working with accounting dimension filter ([#26211](https://github.com/frappe/erpnext/pull/26211))
+- Allow to select group warehouse while downloading materials from production plan ([#26126](https://github.com/frappe/erpnext/pull/26126))
+- Added freeze when trying to stop work order ([#26192](https://github.com/frappe/erpnext/pull/26192))
+- Time out while submit / cancel the stock transactions with more than 50 Items ([#26081](https://github.com/frappe/erpnext/pull/26081))
+- Address Card issues in e-commerce ([#26187](https://github.com/frappe/erpnext/pull/26187))
+- Error while booking deferred revenue ([#26195](https://github.com/frappe/erpnext/pull/26195))
+- Eliminate repeat creation of HSN codes ([#25947](https://github.com/frappe/erpnext/pull/25947))
+- Opening invoices can alter profit and loss of a closed year ([#25951](https://github.com/frappe/erpnext/pull/25951))
+- Payroll entry employee detail issue ([#25968](https://github.com/frappe/erpnext/pull/25968))
+- Auto tax calculations in Payment Entry ([#26037](https://github.com/frappe/erpnext/pull/26037))
+- Use pos invoice item name as unique identifier ([#26198](https://github.com/frappe/erpnext/pull/26198))
+- Billing address not fetched in Purchase Invoice ([#26100](https://github.com/frappe/erpnext/pull/26100))
+- Timeout while cancelling stock reconciliation ([#26098](https://github.com/frappe/erpnext/pull/26098))
+- Status indicator for delivery notes ([#26062](https://github.com/frappe/erpnext/pull/26062))
+- Unable to enter score in Assessment Result details grid ([#26031](https://github.com/frappe/erpnext/pull/26031))
+- Too many writes while renaming company abbreviation ([#26203](https://github.com/frappe/erpnext/pull/26203))
+- Chart not visible for First Response Time reports ([#26185](https://github.com/frappe/erpnext/pull/26185))
+- Job applicant link issue ([#25934](https://github.com/frappe/erpnext/pull/25934))
+- Fetch preferred shipping address (bp #26132) ([#26201](https://github.com/frappe/erpnext/pull/26201))
diff --git a/erpnext/controllers/stock_controller.py b/erpnext/controllers/stock_controller.py
index 35097b9..8196cff 100644
--- a/erpnext/controllers/stock_controller.py
+++ b/erpnext/controllers/stock_controller.py
@@ -11,7 +11,7 @@
 
 import erpnext
 from erpnext.accounts.general_ledger import make_gl_entries, make_reverse_gl_entries, process_gl_map
-from erpnext.accounts.utils import check_if_stock_and_account_balance_synced, get_fiscal_year
+from erpnext.accounts.utils import get_fiscal_year
 from erpnext.controllers.accounts_controller import AccountsController
 from erpnext.stock import get_warehouse_account_map
 from erpnext.stock.stock_ledger import get_valuation_rate
@@ -497,9 +497,6 @@
 		})
 		if future_sle_exists(args):
 			create_repost_item_valuation_entry(args)
-		elif not is_reposting_pending():
-			check_if_stock_and_account_balance_synced(self.posting_date,
-				self.company, self.doctype, self.name)
 
 @frappe.whitelist()
 def make_quality_inspections(doctype, docname, items):
diff --git a/erpnext/hr/doctype/leave_allocation/leave_allocation.json b/erpnext/hr/doctype/leave_allocation/leave_allocation.json
index ae009ba..3a6539e 100644
--- a/erpnext/hr/doctype/leave_allocation/leave_allocation.json
+++ b/erpnext/hr/doctype/leave_allocation/leave_allocation.json
@@ -110,7 +110,7 @@
    "label": "Allocation"
   },
   {
-    "allow_on_submit": 1,
+   "allow_on_submit": 1,
    "bold": 1,
    "fieldname": "new_leaves_allocated",
    "fieldtype": "Float",
diff --git a/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py b/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py
index 49dd701..fdcd533 100644
--- a/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py
+++ b/erpnext/hr/doctype/leave_allocation/test_leave_allocation.py
@@ -164,7 +164,6 @@
 		leave_allocation.cancel()
 		self.assertFalse(frappe.db.exists("Leave Ledger Entry", {'transaction_name':leave_allocation.name}))
 
-
 	def test_leave_addition_after_submit(self):
 		frappe.db.sql("delete from `tabLeave Allocation`")
 		frappe.db.sql("delete from `tabLeave Ledger Entry`")
@@ -179,7 +178,6 @@
 	def test_leave_subtraction_after_submit(self):
 		frappe.db.sql("delete from `tabLeave Allocation`")
 		frappe.db.sql("delete from `tabLeave Ledger Entry`")
-
 		leave_allocation = create_leave_allocation()
 		leave_allocation.submit()
 		self.assertTrue(leave_allocation.total_leaves_allocated, 15)
@@ -199,8 +197,8 @@
 			"doctype": 'Leave Application',
 			"employee": employee.name,
 			"leave_type": "_Test Leave Type",
-			"from_date": nowdate(),
-			"to_date": add_days(nowdate(), 10),
+			"from_date": add_months(nowdate(), 2),
+			"to_date": add_months(add_days(nowdate(), 10), 2),
 			"company": erpnext.get_default_company() or "_Test Company",
 			"docstatus": 1,
 			"status": "Approved",
diff --git a/erpnext/manufacturing/doctype/bom/bom.js b/erpnext/manufacturing/doctype/bom/bom.js
index 44f841f..c566688 100644
--- a/erpnext/manufacturing/doctype/bom/bom.js
+++ b/erpnext/manufacturing/doctype/bom/bom.js
@@ -71,7 +71,6 @@
 
 	refresh: function(frm) {
 		frm.toggle_enable("item", frm.doc.__islocal);
-		toggle_operations(frm);
 
 		frm.set_indicator_formatter('item_code',
 			function(doc) {
@@ -326,8 +325,7 @@
 			freeze: true,
 			args: {
 				update_parent: true,
-				from_child_bom:false,
-				save: frm.doc.docstatus === 1 ? true : false
+				from_child_bom:false
 			},
 			callback: function(r) {
 				refresh_field("items");
@@ -651,15 +649,8 @@
 	erpnext.bom.calculate_total(frm.doc);
 });
 
-var toggle_operations = function(frm) {
-	frm.toggle_display("operations_section", cint(frm.doc.with_operations) == 1);
-	frm.toggle_display("transfer_material_against", cint(frm.doc.with_operations) == 1);
-	frm.toggle_reqd("transfer_material_against", cint(frm.doc.with_operations) == 1);
-};
-
 frappe.ui.form.on("BOM", "with_operations", function(frm) {
 	if(!cint(frm.doc.with_operations)) {
 		frm.set_value("operations", []);
 	}
-	toggle_operations(frm);
 });
diff --git a/erpnext/manufacturing/doctype/bom/bom.json b/erpnext/manufacturing/doctype/bom/bom.json
index f551b91..f38d1b9 100644
--- a/erpnext/manufacturing/doctype/bom/bom.json
+++ b/erpnext/manufacturing/doctype/bom/bom.json
@@ -193,6 +193,7 @@
   },
   {
    "default": "Work Order",
+   "depends_on": "with_operations",
    "fieldname": "transfer_material_against",
    "fieldtype": "Select",
    "label": "Transfer Material Against",
@@ -235,6 +236,7 @@
   {
    "fieldname": "operations_section",
    "fieldtype": "Section Break",
+   "hide_border": 1,
    "oldfieldtype": "Section Break"
   },
   {
@@ -245,6 +247,7 @@
    "options": "Routing"
   },
   {
+   "depends_on": "with_operations",
    "fieldname": "operations",
    "fieldtype": "Table",
    "label": "Operations",
@@ -517,7 +520,7 @@
  "image_field": "image",
  "is_submittable": 1,
  "links": [],
- "modified": "2020-05-21 12:29:32.634952",
+ "modified": "2021-03-16 12:25:09.081968",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "BOM",
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index 9bb4028..c58f017 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -662,7 +662,7 @@
 			self.get_routing()
 
 	def validate_operations(self):
-		if self.with_operations and not self.get('operations'):
+		if self.with_operations and not self.get('operations') and self.docstatus == 1:
 			frappe.throw(_("Operations cannot be left blank"))
 
 		if self.with_operations:
diff --git a/erpnext/manufacturing/doctype/bom_operation/bom_operation.json b/erpnext/manufacturing/doctype/bom_operation/bom_operation.json
index 07464e3..4458e6d 100644
--- a/erpnext/manufacturing/doctype/bom_operation/bom_operation.json
+++ b/erpnext/manufacturing/doctype/bom_operation/bom_operation.json
@@ -13,10 +13,10 @@
   "col_break1",
   "hour_rate",
   "time_in_mins",
-  "batch_size",
   "operating_cost",
   "base_hour_rate",
   "base_operating_cost",
+  "batch_size",
   "image"
  ],
  "fields": [
@@ -61,6 +61,8 @@
   },
   {
    "description": "In minutes",
+   "fetch_from": "operation.total_operation_time",
+   "fetch_if_empty": 1,
    "fieldname": "time_in_mins",
    "fieldtype": "Float",
    "in_list_view": 1,
@@ -104,7 +106,8 @@
    "label": "Image"
   },
   {
-   "default": "1",
+   "fetch_from": "operation.batch_size",
+   "fetch_if_empty": 1,
    "fieldname": "batch_size",
    "fieldtype": "Int",
    "label": "Batch Size"
@@ -120,7 +123,7 @@
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2020-10-13 18:14:10.018774",
+ "modified": "2021-01-12 14:48:09.596843",
  "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 4e8dd41..81860c9 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.js
+++ b/erpnext/manufacturing/doctype/job_card/job_card.js
@@ -11,6 +11,16 @@
 				}
 			};
 		});
+
+		frm.set_indicator_formatter('sub_operation',
+			function(doc) {
+				if (doc.status == "Pending") {
+					return "red";
+				} else {
+					return doc.status === "Complete" ? "green" : "orange";
+				}
+			}
+		);
 	},
 
 	refresh: function(frm) {
@@ -31,6 +41,10 @@
 			}
 		}
 
+		if (frm.doc.docstatus == 1 && !frm.doc.is_corrective_job_card) {
+			frm.trigger('setup_corrective_job_card');
+		}
+
 		frm.set_query("quality_inspection", function() {
 			return {
 				query: "erpnext.stock.doctype.quality_inspection.quality_inspection.quality_inspection_query",
@@ -43,12 +57,62 @@
 
 		frm.trigger("toggle_operation_number");
 
-		if (frm.doc.docstatus == 0 && (frm.doc.for_quantity > frm.doc.total_completed_qty || !frm.doc.for_quantity)
+		if (frm.doc.docstatus == 0 && !frm.is_new() &&
+			(frm.doc.for_quantity > frm.doc.total_completed_qty || !frm.doc.for_quantity)
 			&& (frm.doc.items || !frm.doc.items.length || frm.doc.for_quantity == frm.doc.transferred_qty)) {
 			frm.trigger("prepare_timer_buttons");
 		}
 	},
 
+	setup_corrective_job_card: function(frm) {
+		frm.add_custom_button(__('Corrective Job Card'), () => {
+			let operations = frm.doc.sub_operations.map(d => d.sub_operation).concat(frm.doc.operation);
+
+			let fields = [
+				{
+					fieldtype: 'Link', label: __('Corrective Operation'), options: 'Operation',
+					fieldname: 'operation', get_query() {
+						return {
+							filters: {
+								"is_corrective_operation": 1
+							}
+						};
+					}
+				}, {
+					fieldtype: 'Link', label: __('For Operation'), options: 'Operation',
+					fieldname: 'for_operation', get_query() {
+						return {
+							filters: {
+								"name": ["in", operations]
+							}
+						};
+					}
+				}
+			];
+
+			frappe.prompt(fields, d => {
+				frm.events.make_corrective_job_card(frm, d.operation, d.for_operation);
+			}, __("Select Corrective Operation"));
+		}, __('Make'));
+	},
+
+	make_corrective_job_card: function(frm, operation, for_operation) {
+		frappe.call({
+			method: 'erpnext.manufacturing.doctype.job_card.job_card.make_corrective_job_card',
+			args: {
+				source_name: frm.doc.name,
+				operation: operation,
+				for_operation: for_operation
+			},
+			callback: function(r) {
+				if (r.message) {
+					frappe.model.sync(r.message);
+					frappe.set_route("Form", r.message.doctype, r.message.name);
+				}
+			}
+		});
+	},
+
 	operation: function(frm) {
 		frm.trigger("toggle_operation_number");
 
@@ -97,101 +161,105 @@
 
 	prepare_timer_buttons: function(frm) {
 		frm.trigger("make_dashboard");
-		if (!frm.doc.job_started) {
-			frm.add_custom_button(__("Start"), () => {
-				if (!frm.doc.employee) {
-					frappe.prompt({fieldtype: 'Link', label: __('Employee'), options: "Employee",
-						fieldname: 'employee'}, d => {
-						if (d.employee) {
-							frm.set_value("employee", d.employee);
-						} else {
-							frm.events.start_job(frm);
-						}
-					}, __("Enter Value"), __("Start"));
+
+		if (!frm.doc.started_time && !frm.doc.current_time) {
+			frm.add_custom_button(__("Start Job"), () => {
+				if ((frm.doc.employee && !frm.doc.employee.length) || !frm.doc.employee) {
+					frappe.prompt({fieldtype: 'Table MultiSelect', label: __('Select Employees'),
+						options: "Job Card Time Log", fieldname: 'employees'}, d => {
+						frm.events.start_job(frm, "Work In Progress", d.employees);
+					}, __("Assign Job to Employee"));
 				} else {
-					frm.events.start_job(frm);
+					frm.events.start_job(frm, "Work In Progress", frm.doc.employee);
 				}
 			}).addClass("btn-primary");
 		} else if (frm.doc.status == "On Hold") {
-			frm.add_custom_button(__("Resume"), () => {
-				frappe.flags.resume_job = 1;
-				frm.events.start_job(frm);
+			frm.add_custom_button(__("Resume Job"), () => {
+				frm.events.start_job(frm, "Resume Job", frm.doc.employee);
 			}).addClass("btn-primary");
 		} else {
-			frm.add_custom_button(__("Pause"), () => {
-				frappe.flags.pause_job = 1;
-				frm.set_value("status", "On Hold");
-				frm.events.complete_job(frm);
+			frm.add_custom_button(__("Pause Job"), () => {
+				frm.events.complete_job(frm, "On Hold");
 			});
 
-			frm.add_custom_button(__("Complete"), () => {
-				let completed_time = frappe.datetime.now_datetime();
-				frm.trigger("hide_timer");
+			frm.add_custom_button(__("Complete Job"), () => {
+				var sub_operations = frm.doc.sub_operations;
 
-				if (frm.doc.for_quantity) {
+				let set_qty = true;
+				if (sub_operations && sub_operations.length > 1) {
+					set_qty = false;
+					let last_op_row = sub_operations[sub_operations.length - 2];
+
+					if (last_op_row.status == 'Complete') {
+						set_qty = true;
+					}
+				}
+
+				if (set_qty) {
 					frappe.prompt({fieldtype: 'Float', label: __('Completed Quantity'),
-						fieldname: 'qty', reqd: 1, default: frm.doc.for_quantity}, data => {
-							frm.events.complete_job(frm, completed_time, data.qty);
-						}, __("Enter Value"), __("Complete"));
+						fieldname: 'qty', default: frm.doc.for_quantity}, data => {
+						frm.events.complete_job(frm, "Complete", data.qty);
+					}, __("Enter Value"));
 				} else {
-					frm.events.complete_job(frm, completed_time, 0);
+					frm.events.complete_job(frm, "Complete", 0.0);
 				}
 			}).addClass("btn-primary");
 		}
 	},
 
-	start_job: function(frm) {
-		let row = frappe.model.add_child(frm.doc, 'Job Card Time Log', 'time_logs');
-		row.from_time = frappe.datetime.now_datetime();
-		frm.set_value('job_started', 1);
-		frm.set_value('started_time' , row.from_time);
-		frm.set_value("status", "Work In Progress");
-
-		if (!frappe.flags.resume_job) {
-			frm.set_value('current_time' , 0);
-		}
-
-		frm.save();
+	start_job: function(frm, status, employee) {
+		const args = {
+			job_card_id: frm.doc.name,
+			start_time: frappe.datetime.now_datetime(),
+			employees: employee,
+			status: status
+		};
+		frm.events.make_time_log(frm, args);
 	},
 
-	complete_job: function(frm, completed_time, completed_qty) {
-		frm.doc.time_logs.forEach(d => {
-			if (d.from_time && !d.to_time) {
-				d.to_time = completed_time || frappe.datetime.now_datetime();
-				d.completed_qty = completed_qty || 0;
+	complete_job: function(frm, status, completed_qty) {
+		const args = {
+			job_card_id: frm.doc.name,
+			complete_time: frappe.datetime.now_datetime(),
+			status: status,
+			completed_qty: completed_qty
+		};
+		frm.events.make_time_log(frm, args);
+	},
 
-				if(frappe.flags.pause_job) {
-					let currentIncrement = moment(d.to_time).diff(moment(d.from_time),"seconds") || 0;
-					frm.set_value('current_time' , currentIncrement + (frm.doc.current_time || 0));
-				} else {
-					frm.set_value('started_time' , '');
-					frm.set_value('job_started', 0);
-					frm.set_value('current_time' , 0);
-				}
+	make_time_log: function(frm, args) {
+		frm.events.update_sub_operation(frm, args);
 
-				frm.save();
+		frappe.call({
+			method: "erpnext.manufacturing.doctype.job_card.job_card.make_time_log",
+			args: {
+				args: args
+			},
+			freeze: true,
+			callback: function () {
+				frm.reload_doc();
+				frm.trigger("make_dashboard");
 			}
 		});
 	},
 
+	update_sub_operation: function(frm, args) {
+		if (frm.doc.sub_operations && frm.doc.sub_operations.length) {
+			let sub_operations = frm.doc.sub_operations.filter(d => d.status != 'Complete');
+			if (sub_operations && sub_operations.length) {
+				args["sub_operation"] = sub_operations[0].sub_operation;
+			}
+		}
+	},
+
 	validate: function(frm) {
 		if ((!frm.doc.time_logs || !frm.doc.time_logs.length) && frm.doc.started_time) {
 			frm.trigger("reset_timer");
 		}
 	},
 
-	employee: function(frm) {
-		if (frm.doc.job_started && !frm.doc.current_time) {
-			frm.trigger("reset_timer");
-		} else {
-			frm.events.start_job(frm);
-		}
-	},
-
 	reset_timer: function(frm) {
 		frm.set_value('started_time' , '');
-		frm.set_value('job_started', 0);
-		frm.set_value('current_time' , 0);
 	},
 
 	make_dashboard: function(frm) {
@@ -297,7 +365,6 @@
 	},
 
 	to_time: function(frm) {
-		frm.set_value('job_started', 0);
 		frm.set_value('started_time', '');
 	}
 })
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/job_card/job_card.json b/erpnext/manufacturing/doctype/job_card/job_card.json
index 5713f69..046e2fd 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.json
+++ b/erpnext/manufacturing/doctype/job_card/job_card.json
@@ -9,38 +9,49 @@
   "naming_series",
   "work_order",
   "bom_no",
-  "workstation",
-  "operation",
-  "operation_row_number",
   "column_break_4",
   "posting_date",
   "company",
-  "remarks",
   "production_section",
   "production_item",
   "item_name",
   "for_quantity",
-  "quality_inspection",
-  "wip_warehouse",
+  "serial_no",
   "column_break_12",
-  "employee",
-  "employee_name",
-  "status",
+  "wip_warehouse",
+  "quality_inspection",
   "project",
+  "batch_no",
+  "operation_section_section",
+  "operation",
+  "operation_row_number",
+  "column_break_18",
+  "workstation",
+  "employee",
+  "section_break_21",
+  "sub_operations",
   "timing_detail",
   "time_logs",
   "section_break_13",
   "total_completed_qty",
-  "total_time_in_mins",
   "column_break_15",
+  "total_time_in_mins",
   "section_break_8",
   "items",
+  "corrective_operation_section",
+  "for_job_card",
+  "is_corrective_job_card",
+  "column_break_33",
+  "hour_rate",
+  "for_operation",
   "more_information",
   "operation_id",
   "sequence_id",
   "transferred_qty",
   "requested_qty",
+  "status",
   "column_break_20",
+  "remarks",
   "barcode",
   "job_started",
   "started_time",
@@ -118,13 +129,6 @@
    "label": "Timing Detail"
   },
   {
-   "fieldname": "employee",
-   "fieldtype": "Link",
-   "in_standard_filter": 1,
-   "label": "Employee",
-   "options": "Employee"
-  },
-  {
    "allow_bulk_edit": 1,
    "fieldname": "time_logs",
    "fieldtype": "Table",
@@ -133,9 +137,11 @@
   },
   {
    "fieldname": "section_break_13",
-   "fieldtype": "Section Break"
+   "fieldtype": "Section Break",
+   "hide_border": 1
   },
   {
+   "default": "0",
    "fieldname": "total_completed_qty",
    "fieldtype": "Float",
    "label": "Total Completed Qty",
@@ -160,8 +166,7 @@
    "fieldname": "items",
    "fieldtype": "Table",
    "label": "Items",
-   "options": "Job Card Item",
-   "read_only": 1
+   "options": "Job Card Item"
   },
   {
    "collapsible": 1,
@@ -251,12 +256,7 @@
    "reqd": 1
   },
   {
-   "fetch_from": "employee.employee_name",
-   "fieldname": "employee_name",
-   "fieldtype": "Read Only",
-   "label": "Employee Name"
-  },
-  {
+   "collapsible": 1,
    "fieldname": "production_section",
    "fieldtype": "Section Break",
    "label": "Production"
@@ -314,11 +314,89 @@
    "label": "Quality Inspection",
    "no_copy": 1,
    "options": "Quality Inspection"
+  },
+  {
+   "allow_bulk_edit": 1,
+   "fieldname": "sub_operations",
+   "fieldtype": "Table",
+   "label": "Sub Operations",
+   "options": "Job Card Operation",
+   "read_only": 1
+  },
+  {
+   "fieldname": "operation_section_section",
+   "fieldtype": "Section Break",
+   "label": "Operation Section"
+  },
+  {
+   "fieldname": "column_break_18",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "section_break_21",
+   "fieldtype": "Section Break",
+   "hide_border": 1
+  },
+  {
+   "depends_on": "is_corrective_job_card",
+   "fieldname": "hour_rate",
+   "fieldtype": "Currency",
+   "label": "Hour Rate"
+  },
+  {
+   "collapsible": 1,
+   "depends_on": "is_corrective_job_card",
+   "fieldname": "corrective_operation_section",
+   "fieldtype": "Section Break",
+   "label": "Corrective Operation"
+  },
+  {
+   "default": "0",
+   "fieldname": "is_corrective_job_card",
+   "fieldtype": "Check",
+   "label": "Is Corrective Job Card",
+   "read_only": 1
+  },
+  {
+   "fieldname": "column_break_33",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "for_job_card",
+   "fieldtype": "Link",
+   "label": "For Job Card",
+   "options": "Job Card",
+   "read_only": 1
+  },
+  {
+   "fetch_from": "for_job_card.operation",
+   "fetch_if_empty": 1,
+   "fieldname": "for_operation",
+   "fieldtype": "Link",
+   "label": "For Operation",
+   "options": "Operation"
+  },
+  {
+   "fieldname": "employee",
+   "fieldtype": "Table MultiSelect",
+   "label": "Employee",
+   "options": "Job Card Time Log"
+  },
+  {
+   "fieldname": "serial_no",
+   "fieldtype": "Small Text",
+   "label": "Serial No"
+  },
+  {
+   "fieldname": "batch_no",
+   "fieldtype": "Link",
+   "label": "Batch No",
+   "options": "Batch"
   }
  ],
  "is_submittable": 1,
  "links": [],
- "modified": "2020-11-19 18:26:50.531664",
+ "modified": "2021-03-16 15:59:32.766484",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Job Card",
diff --git a/erpnext/manufacturing/doctype/job_card/job_card.py b/erpnext/manufacturing/doctype/job_card/job_card.py
index cdc4518..7f8f2ef 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.py
+++ b/erpnext/manufacturing/doctype/job_card/job_card.py
@@ -5,11 +5,12 @@
 from __future__ import unicode_literals
 import frappe
 import datetime
+import json
 from frappe import _, bold
 from frappe.model.mapper import get_mapped_doc
 from frappe.model.document import Document
 from frappe.utils import (flt, cint, time_diff_in_hours, get_datetime, getdate,
-	get_time, add_to_date, time_diff, add_days, get_datetime_str, get_link_to_form)
+	get_time, add_to_date, time_diff, add_days, get_datetime_str, get_link_to_form, time_diff_in_seconds)
 
 from erpnext.manufacturing.doctype.manufacturing_settings.manufacturing_settings import get_mins_between_operations
 
@@ -25,10 +26,21 @@
 		self.set_status()
 		self.validate_operation_id()
 		self.validate_sequence_id()
+		self.get_sub_operations()
+		self.update_sub_operation_status()
+
+	def get_sub_operations(self):
+		if self.operation:
+			self.sub_operations = []
+			for row in frappe.get_all("Sub Operation",
+				filters = {"parent": self.operation}, fields=["operation", "idx"]):
+				row.status = "Pending"
+				row.sub_operation = row.operation
+				self.append("sub_operations", row)
 
 	def validate_time_logs(self):
-		self.total_completed_qty = 0.0
 		self.total_time_in_mins = 0.0
+		self.total_completed_qty = 0.0
 
 		if self.get('time_logs'):
 			for d in self.get('time_logs'):
@@ -44,11 +56,14 @@
 					d.time_in_mins = time_diff_in_hours(d.to_time, d.from_time) * 60
 					self.total_time_in_mins += d.time_in_mins
 
-				if d.completed_qty:
+				if d.completed_qty and not self.sub_operations:
 					self.total_completed_qty += d.completed_qty
 
 			self.total_completed_qty = flt(self.total_completed_qty, self.precision("total_completed_qty"))
 
+		for row in self.sub_operations:
+			self.total_completed_qty += row.completed_qty
+
 	def get_overlap_for(self, args, check_next_available_slot=False):
 		production_capacity = 1
 
@@ -57,7 +72,7 @@
 				self.workstation, 'production_capacity') or 1
 			validate_overlap_for = " and jc.workstation = %(workstation)s "
 
-		if self.employee:
+		if args.get("employee"):
 			# override capacity for employee
 			production_capacity = 1
 			validate_overlap_for = " and jc.employee = %(employee)s "
@@ -80,7 +95,7 @@
 				"to_time": args.to_time,
 				"name": args.name or "No Name",
 				"parent": args.parent or "No Name",
-				"employee": self.employee,
+				"employee": args.get("employee"),
 				"workstation": self.workstation
 			}, as_dict=True)
 
@@ -158,6 +173,100 @@
 			row.planned_start_time = datetime.datetime.combine(start_date,
 				get_time(workstation_doc.working_hours[0].start_time))
 
+	def add_time_log(self, args):
+		last_row = []
+		employees = args.employees
+		if isinstance(employees, str):
+			employees = json.loads(employees)
+
+		if self.time_logs and len(self.time_logs) > 0:
+			last_row = self.time_logs[-1]
+
+		self.reset_timer_value(args)
+		if last_row and args.get("complete_time"):
+			for row in self.time_logs:
+				if not row.to_time:
+					row.update({
+						"to_time": get_datetime(args.get("complete_time")),
+						"operation": args.get("sub_operation"),
+						"completed_qty": args.get("completed_qty") or 0.0
+					})
+		elif args.get("start_time"):
+			for name in employees:
+				self.append("time_logs", {
+					"from_time": get_datetime(args.get("start_time")),
+					"employee": name.get('employee'),
+					"operation": args.get("sub_operation"),
+					"completed_qty": 0.0
+				})
+
+		if not self.employee:
+			self.set_employees(employees)
+
+		if self.status == "On Hold":
+			self.current_time = time_diff_in_seconds(last_row.to_time, last_row.from_time)
+
+		self.save()
+
+	def set_employees(self, employees):
+		for name in employees:
+			self.append('employee', {
+				'employee': name.get('employee'),
+				'completed_qty': 0.0
+			})
+
+	def reset_timer_value(self, args):
+		self.started_time = None
+
+		if args.get("status") in ["Work In Progress", "Complete"]:
+			self.current_time = 0.0
+
+			if args.get("status") == "Work In Progress":
+				self.started_time = get_datetime(args.get("start_time"))
+
+		if args.get("status") == "Resume Job":
+			args["status"] = "Work In Progress"
+
+		if args.get("status"):
+			self.status = args.get("status")
+
+	def update_sub_operation_status(self):
+		if not (self.sub_operations and self.time_logs):
+			return
+
+		operation_wise_completed_time = {}
+		for time_log in self.time_logs:
+			if time_log.operation not in operation_wise_completed_time:
+				operation_wise_completed_time.setdefault(time_log.operation,
+					frappe._dict({"status": "Pending", "completed_qty":0.0, "completed_time": 0.0, "employee": []}))
+
+			op_row = operation_wise_completed_time[time_log.operation]
+			op_row.status = "Work In Progress" if not time_log.time_in_mins else "Complete"
+			if self.status == 'On Hold':
+				op_row.status = 'Pause'
+
+			op_row.employee.append(time_log.employee)
+			if time_log.time_in_mins:
+				op_row.completed_time += time_log.time_in_mins
+				op_row.completed_qty += time_log.completed_qty
+
+		for row in self.sub_operations:
+			operation_deatils = operation_wise_completed_time.get(row.sub_operation)
+			if operation_deatils:
+				if row.status != 'Complete':
+					row.status = operation_deatils.status
+
+				row.completed_time = operation_deatils.completed_time
+				if operation_deatils.employee:
+					row.completed_time = row.completed_time / len(set(operation_deatils.employee))
+
+					if operation_deatils.completed_qty:
+						row.completed_qty = operation_deatils.completed_qty / len(set(operation_deatils.employee))
+			else:
+				row.status = 'Pending'
+				row.completed_time = 0.0
+				row.completed_qty = 0.0
+
 	def update_time_logs(self, row):
 		self.append("time_logs", {
 			"from_time": row.planned_start_time,
@@ -182,15 +291,18 @@
 
 			if self.get('operation') == d.operation:
 				self.append('items', {
-					'item_code': d.item_code,
-					'source_warehouse': d.source_warehouse,
-					'uom': frappe.db.get_value("Item", d.item_code, 'stock_uom'),
-					'item_name': d.item_name,
-					'description': d.description,
-					'required_qty': (d.required_qty * flt(self.for_quantity)) / doc.qty
+					"item_code": d.item_code,
+					"source_warehouse": d.source_warehouse,
+					"uom": frappe.db.get_value("Item", d.item_code, 'stock_uom'),
+					"item_name": d.item_name,
+					"description": d.description,
+					"required_qty": (d.required_qty * flt(self.for_quantity)) / doc.qty,
+					"rate": d.rate,
+					"amount": d.amount
 				})
 
 	def on_submit(self):
+		self.validate_transfer_qty()
 		self.validate_job_card()
 		self.update_work_order()
 		self.set_transferred_qty()
@@ -199,7 +311,16 @@
 		self.update_work_order()
 		self.set_transferred_qty()
 
+	def validate_transfer_qty(self):
+		if self.items and self.transferred_qty < self.for_quantity:
+			frappe.throw(_('Materials needs to be transferred to the work in progress warehouse for the job card {0}')
+				.format(self.name))
+
 	def validate_job_card(self):
+		if self.work_order and frappe.get_cached_value('Work Order', self.work_order, 'status') == 'Stopped':
+			frappe.throw(_("Transaction not allowed against stopped Work Order {0}")
+				.format(get_link_to_form('Work Order', self.work_order)))
+
 		if not self.time_logs:
 			frappe.throw(_("Time logs are required for {0} {1}")
 				.format(bold("Job Card"), get_link_to_form("Job Card", self.name)))
@@ -215,6 +336,10 @@
 		if not self.work_order:
 			return
 
+		if self.is_corrective_job_card and not cint(frappe.db.get_single_value('Manufacturing Settings',
+			'add_corrective_operation_cost_in_finished_good_valuation')):
+			return
+
 		for_quantity, time_in_mins = 0, 0
 		from_time_list, to_time_list = [], []
 
@@ -225,10 +350,24 @@
 			time_in_mins = flt(data[0].time_in_mins)
 
 		wo = frappe.get_doc('Work Order', self.work_order)
-		if self.operation_id:
+
+		if self.is_corrective_job_card:
+			self.update_corrective_in_work_order(wo)
+
+		elif self.operation_id:
 			self.validate_produced_quantity(for_quantity, wo)
 			self.update_work_order_data(for_quantity, time_in_mins, wo)
 
+	def update_corrective_in_work_order(self, wo):
+		wo.corrective_operation_cost = 0.0
+		for row in frappe.get_all('Job Card', fields = ['total_time_in_mins', 'hour_rate'],
+			filters = {'is_corrective_job_card': 1, 'docstatus': 1, 'work_order': self.work_order}):
+			wo.corrective_operation_cost += flt(row.total_time_in_mins) * flt(row.hour_rate)
+
+		wo.calculate_operating_cost()
+		wo.flags.ignore_validate_update_after_submit = True
+		wo.save()
+
 	def validate_produced_quantity(self, for_quantity, wo):
 		if self.docstatus < 2: return
 
@@ -248,8 +387,8 @@
 					min(from_time) as start_time, max(to_time) as end_time
 				FROM `tabJob Card` jc, `tabJob Card Time Log` jctl
 				WHERE
-					jctl.parent = jc.name and jc.work_order = %s
-					and jc.operation_id = %s and jc.docstatus = 1
+					jctl.parent = jc.name and jc.work_order = %s and jc.operation_id = %s
+					and jc.docstatus = 1 and IFNULL(jc.is_corrective_job_card, 0) = 0
 			""", (self.work_order, self.operation_id), as_dict=1)
 
 		for data in wo.operations:
@@ -271,7 +410,8 @@
 	def get_current_operation_data(self):
 		return frappe.get_all('Job Card',
 			fields = ["sum(total_time_in_mins) as time_in_mins", "sum(total_completed_qty) as completed_qty"],
-			filters = {"docstatus": 1, "work_order": self.work_order, "operation_id": self.operation_id})
+			filters = {"docstatus": 1, "work_order": self.work_order, "operation_id": self.operation_id,
+				"is_corrective_job_card": 0})
 
 	def set_transferred_qty_in_job_card(self, ste_doc):
 		for row in ste_doc.items:
@@ -354,7 +494,11 @@
 				.format(bold(self.operation), work_order), OperationMismatchError)
 
 	def validate_sequence_id(self):
-		if not (self.work_order and self.sequence_id): return
+		if self.is_corrective_job_card:
+			return
+
+		if not (self.work_order and self.sequence_id):
+			return
 
 		current_operation_qty = 0.0
 		data = self.get_current_operation_data()
@@ -376,6 +520,17 @@
 				frappe.throw(_("{0}, complete the operation {1} before the operation {2}.")
 					.format(message, bold(row.operation), bold(self.operation)), OperationSequenceError)
 
+
+@frappe.whitelist()
+def make_time_log(args):
+	if isinstance(args, str):
+		args = json.loads(args)
+
+	args = frappe._dict(args)
+	doc = frappe.get_doc("Job Card", args.job_card_id)
+	doc.validate_sequence_id()
+	doc.add_time_log(args)
+
 @frappe.whitelist()
 def get_operation_details(work_order, operation):
 	if work_order and operation:
@@ -511,3 +666,28 @@
 			events.append(job_card_data)
 
 	return events
+
+@frappe.whitelist()
+def make_corrective_job_card(source_name, operation=None, for_operation=None, target_doc=None):
+	def set_missing_values(source, target):
+		target.is_corrective_job_card = 1
+		target.operation = operation
+		target.for_operation = for_operation
+
+		target.set('time_logs', [])
+		target.set('employee', [])
+		target.set('items', [])
+		target.get_sub_operations()
+		target.get_required_items()
+		target.validate_time_logs()
+
+	doclist = get_mapped_doc("Job Card", source_name, {
+		"Job Card": {
+			"doctype": "Job Card",
+			"field_map": {
+				"name": "for_job_card",
+			},
+		}
+	}, target_doc, set_missing_values)
+
+	return doclist
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/job_card_item/job_card_item.json b/erpnext/manufacturing/doctype/job_card_item/job_card_item.json
index 100ef4c..d91530d 100644
--- a/erpnext/manufacturing/doctype/job_card_item/job_card_item.json
+++ b/erpnext/manufacturing/doctype/job_card_item/job_card_item.json
@@ -25,8 +25,7 @@
    "fieldtype": "Link",
    "in_list_view": 1,
    "label": "Item Code",
-   "options": "Item",
-   "read_only": 1
+   "options": "Item"
   },
   {
    "fieldname": "source_warehouse",
@@ -67,8 +66,7 @@
    "fieldname": "required_qty",
    "fieldtype": "Float",
    "in_list_view": 1,
-   "label": "Required Qty",
-   "read_only": 1
+   "label": "Required Qty"
   },
   {
    "fieldname": "column_break_9",
@@ -107,7 +105,7 @@
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-02-11 13:50:13.804108",
+ "modified": "2021-04-22 18:50:00.003444",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Job Card Item",
diff --git a/erpnext/manufacturing/doctype/job_card_operation/__init__.py b/erpnext/manufacturing/doctype/job_card_operation/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/manufacturing/doctype/job_card_operation/__init__.py
diff --git a/erpnext/manufacturing/doctype/job_card_operation/job_card_operation.json b/erpnext/manufacturing/doctype/job_card_operation/job_card_operation.json
new file mode 100644
index 0000000..9a8692b
--- /dev/null
+++ b/erpnext/manufacturing/doctype/job_card_operation/job_card_operation.json
@@ -0,0 +1,59 @@
+{
+ "actions": [],
+ "creation": "2020-12-07 16:58:38.449041",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "sub_operation",
+  "completed_time",
+  "status",
+  "completed_qty"
+ ],
+ "fields": [
+  {
+   "default": "Pending",
+   "fieldname": "status",
+   "fieldtype": "Select",
+   "in_list_view": 1,
+   "label": "Status",
+   "options": "Complete\nPause\nPending\nWork In Progress",
+   "read_only": 1
+  },
+  {
+   "description": "In mins",
+   "fieldname": "completed_time",
+   "fieldtype": "Data",
+   "in_list_view": 1,
+   "label": "Completed Time",
+   "read_only": 1
+  },
+  {
+   "fieldname": "sub_operation",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Operation",
+   "options": "Operation",
+   "read_only": 1
+  },
+  {
+   "fieldname": "completed_qty",
+   "fieldtype": "Float",
+   "label": "Completed Qty",
+   "read_only": 1
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "istable": 1,
+ "links": [],
+ "modified": "2021-03-16 18:24:35.399593",
+ "modified_by": "Administrator",
+ "module": "Manufacturing",
+ "name": "Job Card Operation",
+ "owner": "Administrator",
+ "permissions": [],
+ "quick_entry": 1,
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/job_card_operation/job_card_operation.py b/erpnext/manufacturing/doctype/job_card_operation/job_card_operation.py
new file mode 100644
index 0000000..85d7298
--- /dev/null
+++ b/erpnext/manufacturing/doctype/job_card_operation/job_card_operation.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+# import frappe
+from frappe.model.document import Document
+
+class JobCardOperation(Document):
+	pass
diff --git a/erpnext/manufacturing/doctype/job_card_time_log/job_card_time_log.json b/erpnext/manufacturing/doctype/job_card_time_log/job_card_time_log.json
index 9dd54dd..a7102d7 100644
--- a/erpnext/manufacturing/doctype/job_card_time_log/job_card_time_log.json
+++ b/erpnext/manufacturing/doctype/job_card_time_log/job_card_time_log.json
@@ -1,14 +1,17 @@
 {
+ "actions": [],
  "creation": "2019-03-08 23:56:43.187569",
  "doctype": "DocType",
  "editable_grid": 1,
  "engine": "InnoDB",
  "field_order": [
+  "employee",
   "from_time",
   "to_time",
   "column_break_2",
   "time_in_mins",
-  "completed_qty"
+  "completed_qty",
+  "operation"
  ],
  "fields": [
   {
@@ -41,10 +44,27 @@
    "in_list_view": 1,
    "label": "Completed Qty",
    "reqd": 1
+  },
+  {
+   "fieldname": "employee",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Employee",
+   "options": "Employee"
+  },
+  {
+   "fieldname": "operation",
+   "fieldtype": "Link",
+   "label": "Operation",
+   "no_copy": 1,
+   "options": "Operation",
+   "read_only": 1
   }
  ],
+ "index_web_pages_for_search": 1,
  "istable": 1,
- "modified": "2019-12-03 12:56:02.285448",
+ "links": [],
+ "modified": "2020-12-23 14:30:00.970916",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Job Card Time Log",
diff --git a/erpnext/manufacturing/doctype/manufacturing_settings/manufacturing_settings.json b/erpnext/manufacturing/doctype/manufacturing_settings/manufacturing_settings.json
index b7634da..024f784 100644
--- a/erpnext/manufacturing/doctype/manufacturing_settings/manufacturing_settings.json
+++ b/erpnext/manufacturing/doctype/manufacturing_settings/manufacturing_settings.json
@@ -26,7 +26,10 @@
   "column_break_16",
   "overproduction_percentage_for_work_order",
   "other_settings_section",
-  "update_bom_costs_automatically"
+  "update_bom_costs_automatically",
+  "add_corrective_operation_cost_in_finished_good_valuation",
+  "column_break_23",
+  "make_serial_no_batch_from_work_order"
  ],
  "fields": [
   {
@@ -155,13 +158,30 @@
   {
    "fieldname": "column_break_5",
    "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "column_break_23",
+   "fieldtype": "Column Break"
+  },
+  {
+   "default": "0",
+   "description": "System will automatically create the serial numbers / batch for the Finished Good on submission of work order",
+   "fieldname": "make_serial_no_batch_from_work_order",
+   "fieldtype": "Check",
+   "label": "Make Serial No / Batch from Work Order"
+  },
+  {
+   "default": "0",
+   "fieldname": "add_corrective_operation_cost_in_finished_good_valuation",
+   "fieldtype": "Check",
+   "label": "Add Corrective Operation Cost in Finished Good Valuation"
   }
  ],
  "icon": "icon-wrench",
  "index_web_pages_for_search": 1,
  "issingle": 1,
  "links": [],
- "modified": "2020-10-13 10:55:43.996581",
+ "modified": "2021-03-16 15:54:38.967341",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Manufacturing Settings",
@@ -178,4 +198,4 @@
  "sort_field": "modified",
  "sort_order": "DESC",
  "track_changes": 1
-}
+}
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/operation/operation.js b/erpnext/manufacturing/doctype/operation/operation.js
index 5c2aba6..102b678 100644
--- a/erpnext/manufacturing/doctype/operation/operation.js
+++ b/erpnext/manufacturing/doctype/operation/operation.js
@@ -2,7 +2,13 @@
 // For license information, please see license.txt
 
 frappe.ui.form.on('Operation', {
-	refresh: function(frm) {
-
+	setup: function(frm) {
+		frm.set_query('operation', 'sub_operations', function() {
+			return {
+				filters: {
+					'name': ['not in', [frm.doc.name]]
+				}
+			};
+		});
 	}
-});
+});
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/operation/operation.json b/erpnext/manufacturing/doctype/operation/operation.json
index c231fba..10a97ed 100644
--- a/erpnext/manufacturing/doctype/operation/operation.json
+++ b/erpnext/manufacturing/doctype/operation/operation.json
@@ -1,167 +1,132 @@
 {
- "allow_copy": 0, 
- "allow_import": 1, 
- "allow_rename": 1, 
- "autoname": "Prompt", 
- "beta": 0, 
- "creation": "2014-11-07 16:20:30.683186", 
- "custom": 0, 
- "docstatus": 0, 
- "doctype": "DocType", 
- "document_type": "Setup", 
- "editable_grid": 0, 
- "engine": "InnoDB", 
+ "actions": [],
+ "allow_import": 1,
+ "allow_rename": 1,
+ "autoname": "Prompt",
+ "creation": "2014-11-07 16:20:30.683186",
+ "doctype": "DocType",
+ "document_type": "Setup",
+ "engine": "InnoDB",
+ "field_order": [
+  "workstation",
+  "data_2",
+  "is_corrective_operation",
+  "job_card_section",
+  "create_job_card_based_on_batch_size",
+  "column_break_6",
+  "batch_size",
+  "sub_operations_section",
+  "sub_operations",
+  "total_operation_time",
+  "section_break_4",
+  "description"
+ ],
  "fields": [
   {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "workstation", 
-   "fieldtype": "Link", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 1, 
-   "in_standard_filter": 1, 
-   "label": "Default Workstation", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "Workstation", 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
+   "fieldname": "workstation",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "in_standard_filter": 1,
+   "label": "Default Workstation",
+   "options": "Workstation"
+  },
   {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "section_break_4", 
-   "fieldtype": "Section Break", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
-  }, 
+   "collapsible": 1,
+   "fieldname": "section_break_4",
+   "fieldtype": "Section Break",
+   "label": "Operation Description"
+  },
   {
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "fieldname": "description", 
-   "fieldtype": "Text", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Description", 
-   "length": 0, 
-   "no_copy": 0, 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 0, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
-   "unique": 0
+   "fieldname": "description",
+   "fieldtype": "Text",
+   "label": "Description"
+  },
+  {
+   "collapsible": 1,
+   "fieldname": "sub_operations_section",
+   "fieldtype": "Section Break",
+   "label": "Sub Operations"
+  },
+  {
+   "fieldname": "sub_operations",
+   "fieldtype": "Table",
+   "options": "Sub Operation"
+  },
+  {
+   "description": "Time in mins.",
+   "fieldname": "total_operation_time",
+   "fieldtype": "Float",
+   "label": "Total Operation Time",
+   "read_only": 1
+  },
+  {
+   "fieldname": "data_2",
+   "fieldtype": "Column Break"
+  },
+  {
+   "default": "1",
+   "depends_on": "create_job_card_based_on_batch_size",
+   "fieldname": "batch_size",
+   "fieldtype": "Int",
+   "label": "Batch Size",
+   "mandatory_depends_on": "create_job_card_based_on_batch_size"
+  },
+  {
+   "default": "0",
+   "fieldname": "create_job_card_based_on_batch_size",
+   "fieldtype": "Check",
+   "label": "Create Job Card based on Batch Size"
+  },
+  {
+   "collapsible": 1,
+   "fieldname": "job_card_section",
+   "fieldtype": "Section Break",
+   "label": "Job Card"
+  },
+  {
+   "fieldname": "column_break_6",
+   "fieldtype": "Column Break"
+  },
+  {
+   "default": "0",
+   "fieldname": "is_corrective_operation",
+   "fieldtype": "Check",
+   "label": "Is Corrective Operation"
   }
- ], 
- "hide_heading": 0, 
- "hide_toolbar": 0, 
- "icon": "fa fa-wrench", 
- "idx": 0, 
- "image_view": 0, 
- "in_create": 0, 
-
- "is_submittable": 0, 
- "issingle": 0, 
- "istable": 0, 
- "max_attachments": 0, 
- "modified": "2016-11-07 05:28:27.462413", 
- "modified_by": "Administrator", 
- "module": "Manufacturing", 
- "name": "Operation", 
- "name_case": "", 
- "owner": "Administrator", 
+ ],
+ "icon": "fa fa-wrench",
+ "index_web_pages_for_search": 1,
+ "links": [],
+ "modified": "2021-01-12 15:09:23.593338",
+ "modified_by": "Administrator",
+ "module": "Manufacturing",
+ "name": "Operation",
+ "owner": "Administrator",
  "permissions": [
   {
-   "amend": 0, 
-   "apply_user_permissions": 0, 
-   "cancel": 0, 
-   "create": 1, 
-   "delete": 1, 
-   "email": 0, 
-   "export": 1, 
-   "if_owner": 0, 
-   "import": 1, 
-   "is_custom": 0, 
-   "permlevel": 0, 
-   "print": 0, 
-   "read": 1, 
-   "report": 0, 
-   "role": "Manufacturing User", 
-   "set_user_permissions": 0, 
-   "share": 1, 
-   "submit": 0, 
+   "create": 1,
+   "delete": 1,
+   "export": 1,
+   "import": 1,
+   "read": 1,
+   "role": "Manufacturing User",
+   "share": 1,
    "write": 1
-  }, 
+  },
   {
-   "amend": 0, 
-   "apply_user_permissions": 0, 
-   "cancel": 0, 
-   "create": 1, 
-   "delete": 1, 
-   "email": 0, 
-   "export": 1, 
-   "if_owner": 0, 
-   "import": 1, 
-   "is_custom": 0, 
-   "permlevel": 0, 
-   "print": 0, 
-   "read": 1, 
-   "report": 1, 
-   "role": "Manufacturing Manager", 
-   "set_user_permissions": 0, 
-   "share": 1, 
-   "submit": 0, 
+   "create": 1,
+   "delete": 1,
+   "export": 1,
+   "import": 1,
+   "read": 1,
+   "report": 1,
+   "role": "Manufacturing Manager",
+   "share": 1,
    "write": 1
   }
- ], 
- "quick_entry": 1, 
- "read_only": 0, 
- "read_only_onload": 0, 
- "sort_field": "modified", 
- "sort_order": "DESC", 
- "track_seen": 0
+ ],
+ "quick_entry": 1,
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
 }
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/operation/operation.py b/erpnext/manufacturing/doctype/operation/operation.py
index 69e8329..374f320 100644
--- a/erpnext/manufacturing/doctype/operation/operation.py
+++ b/erpnext/manufacturing/doctype/operation/operation.py
@@ -2,9 +2,34 @@
 # For license information, please see license.txt
 
 from __future__ import unicode_literals
+
+import frappe
+from frappe import _
 from frappe.model.document import Document
 
 class Operation(Document):
 	def validate(self):
 		if not self.description:
 			self.description = self.name
+
+		self.duplicate_sub_operation()
+		self.set_total_time()
+
+	def duplicate_sub_operation(self):
+		operation_list = []
+		for row in self.sub_operations:
+			if row.operation in operation_list:
+				frappe.throw(_("The operation {0} can not add multiple times")
+					.format(frappe.bold(row.operation)))
+
+			if self.name == row.operation:
+				frappe.throw(_("The operation {0} can not be the sub operation")
+					.format(frappe.bold(row.operation)))
+
+			operation_list.append(row.operation)
+
+	def set_total_time(self):
+		self.total_operation_time = 0.0
+
+		for row in self.sub_operations:
+			self.total_operation_time += row.time_in_mins
diff --git a/erpnext/manufacturing/doctype/sub_operation/__init__.py b/erpnext/manufacturing/doctype/sub_operation/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/manufacturing/doctype/sub_operation/__init__.py
diff --git a/erpnext/manufacturing/doctype/sub_operation/sub_operation.js b/erpnext/manufacturing/doctype/sub_operation/sub_operation.js
new file mode 100644
index 0000000..be9db6a
--- /dev/null
+++ b/erpnext/manufacturing/doctype/sub_operation/sub_operation.js
@@ -0,0 +1,8 @@
+// Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+
+frappe.ui.form.on('Sub Operation', {
+	// refresh: function(frm) {
+
+	// }
+});
diff --git a/erpnext/manufacturing/doctype/sub_operation/sub_operation.json b/erpnext/manufacturing/doctype/sub_operation/sub_operation.json
new file mode 100644
index 0000000..f63d2b9
--- /dev/null
+++ b/erpnext/manufacturing/doctype/sub_operation/sub_operation.json
@@ -0,0 +1,51 @@
+{
+ "actions": [],
+ "creation": "2020-12-07 15:39:47.488519",
+ "doctype": "DocType",
+ "editable_grid": 1,
+ "engine": "InnoDB",
+ "field_order": [
+  "operation",
+  "time_in_mins",
+  "column_break_5",
+  "description"
+ ],
+ "fields": [
+  {
+   "fieldname": "operation",
+   "fieldtype": "Link",
+   "in_list_view": 1,
+   "label": "Operation",
+   "options": "Operation"
+  },
+  {
+   "description": "Time in mins",
+   "fieldname": "time_in_mins",
+   "fieldtype": "Float",
+   "in_list_view": 1,
+   "label": "Operation Time"
+  },
+  {
+   "fieldname": "column_break_5",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "description",
+   "fieldtype": "Small Text",
+   "label": "Description"
+  }
+ ],
+ "index_web_pages_for_search": 1,
+ "istable": 1,
+ "links": [],
+ "modified": "2020-12-07 18:09:18.005578",
+ "modified_by": "Administrator",
+ "module": "Manufacturing",
+ "name": "Sub Operation",
+ "owner": "Administrator",
+ "permissions": [],
+ "quick_entry": 1,
+ "sort_field": "modified",
+ "sort_order": "DESC",
+ "track_changes": 1
+}
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/sub_operation/sub_operation.py b/erpnext/manufacturing/doctype/sub_operation/sub_operation.py
new file mode 100644
index 0000000..f4b2775
--- /dev/null
+++ b/erpnext/manufacturing/doctype/sub_operation/sub_operation.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+# import frappe
+from frappe.model.document import Document
+
+class SubOperation(Document):
+	pass
diff --git a/erpnext/manufacturing/doctype/sub_operation/test_sub_operation.py b/erpnext/manufacturing/doctype/sub_operation/test_sub_operation.py
new file mode 100644
index 0000000..d3410ca
--- /dev/null
+++ b/erpnext/manufacturing/doctype/sub_operation/test_sub_operation.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+from __future__ import unicode_literals
+
+# import frappe
+import unittest
+
+class TestSubOperation(unittest.TestCase):
+	pass
diff --git a/erpnext/manufacturing/doctype/work_order/test_work_order.py b/erpnext/manufacturing/doctype/work_order/test_work_order.py
index cb1ee92..68de0b2 100644
--- a/erpnext/manufacturing/doctype/work_order/test_work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/test_work_order.py
@@ -389,17 +389,12 @@
 		ste.submit()
 		stock_entries.append(ste)
 
-		job_cards = frappe.get_all('Job Card', filters = {'work_order': work_order.name})
+		job_cards = frappe.get_all('Job Card', filters = {'work_order': work_order.name}, order_by='creation asc')
 		self.assertEqual(len(job_cards), len(bom.operations))
 
 		for i, job_card in enumerate(job_cards):
 			doc = frappe.get_doc("Job Card", job_card)
-			doc.append("time_logs", {
-				"from_time": add_to_date(None, i),
-				"hours": 1,
-				"to_time": add_to_date(None, i + 1),
-				"completed_qty": doc.for_quantity
-			})
+			doc.time_logs[0].completed_qty = 1
 			doc.submit()
 
 		ste1 = frappe.get_doc(make_stock_entry(work_order.name, "Manufacture", 1))
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.js b/erpnext/manufacturing/doctype/work_order/work_order.js
index 8088d93..5120485 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.js
+++ b/erpnext/manufacturing/doctype/work_order/work_order.js
@@ -141,8 +141,7 @@
 		}
 
 		if (frm.doc.docstatus === 1
-			&& frm.doc.operations && frm.doc.operations.length
-			&& frm.doc.qty != frm.doc.material_transferred_for_manufacturing) {
+			&& frm.doc.operations && frm.doc.operations.length) {
 
 			const not_completed = frm.doc.operations.filter(d => {
 				if(d.status != 'Completed') {
@@ -190,35 +189,41 @@
 		const dialog = frappe.prompt({fieldname: 'operations', fieldtype: 'Table', label: __('Operations'),
 			fields: [
 				{
-					fieldtype:'Link',
-					fieldname:'operation',
+					fieldtype: 'Link',
+					fieldname: 'operation',
 					label: __('Operation'),
-					read_only:1,
-					in_list_view:1
+					read_only: 1,
+					in_list_view: 1
 				},
 				{
-					fieldtype:'Link',
-					fieldname:'workstation',
+					fieldtype: 'Link',
+					fieldname: 'workstation',
 					label: __('Workstation'),
-					read_only:1,
-					in_list_view:1
+					read_only: 1,
+					in_list_view: 1
 				},
 				{
-					fieldtype:'Data',
-					fieldname:'name',
+					fieldtype: 'Data',
+					fieldname: 'name',
 					label: __('Operation Id')
 				},
 				{
-					fieldtype:'Float',
-					fieldname:'pending_qty',
+					fieldtype: 'Float',
+					fieldname: 'pending_qty',
 					label: __('Pending Qty'),
 				},
 				{
-					fieldtype:'Float',
-					fieldname:'qty',
+					fieldtype: 'Float',
+					fieldname: 'qty',
 					label: __('Quantity to Manufacture'),
-					read_only:0,
-					in_list_view:1,
+					read_only: 0,
+					in_list_view: 1,
+				},
+				{
+					fieldtype: 'Float',
+					fieldname: 'batch_size',
+					label: __('Batch Size'),
+					read_only: 1
 				},
 			],
 			data: operations_data,
@@ -229,9 +234,13 @@
 		}, function(data) {
 			frappe.call({
 				method: "erpnext.manufacturing.doctype.work_order.work_order.make_job_card",
+				freeze: true,
 				args: {
 					work_order: frm.doc.name,
 					operations: data.operations,
+				},
+				callback: function() {
+					frm.reload_doc();
 				}
 			});
 		}, __("Job Card"), __("Create"));
@@ -243,13 +252,16 @@
 			if(data.completed_qty != frm.doc.qty) {
 				pending_qty = frm.doc.qty - flt(data.completed_qty);
 
-				dialog.fields_dict.operations.df.data.push({
-					'name': data.name,
-					'operation': data.operation,
-					'workstation': data.workstation,
-					'qty': pending_qty,
-					'pending_qty': pending_qty,
-				});
+				if (pending_qty) {
+					dialog.fields_dict.operations.df.data.push({
+						'name': data.name,
+						'operation': data.operation,
+						'workstation': data.workstation,
+						'batch_size': data.batch_size,
+						'qty': pending_qty,
+						'pending_qty': pending_qty
+					});
+				}
 			}
 		});
 		dialog.fields_dict.operations.grid.refresh();
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.json b/erpnext/manufacturing/doctype/work_order/work_order.json
index cd9edee..44d76d2 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.json
+++ b/erpnext/manufacturing/doctype/work_order/work_order.json
@@ -21,6 +21,12 @@
   "produced_qty",
   "sales_order",
   "project",
+  "serial_no_and_batch_for_finished_good_section",
+  "has_serial_no",
+  "has_batch_no",
+  "column_break_17",
+  "serial_no",
+  "batch_size",
   "settings_section",
   "allow_alternative_item",
   "use_multi_level_bom",
@@ -52,6 +58,7 @@
   "actual_operating_cost",
   "additional_operating_cost",
   "column_break_24",
+  "corrective_operation_cost",
   "total_operating_cost",
   "more_info",
   "description",
@@ -488,6 +495,57 @@
    "fieldtype": "Float",
    "label": "Lead Time",
    "read_only": 1
+  },
+  {
+   "collapsible": 1,
+   "depends_on": "eval:!doc.__islocal",
+   "fieldname": "serial_no_and_batch_for_finished_good_section",
+   "fieldtype": "Section Break",
+   "label": "Serial No and Batch for Finished Good"
+  },
+  {
+   "fieldname": "column_break_17",
+   "fieldtype": "Column Break"
+  },
+  {
+   "default": "0",
+   "fetch_from": "production_item.has_serial_no",
+   "fieldname": "has_serial_no",
+   "fieldtype": "Check",
+   "label": "Has Serial No",
+   "read_only": 1
+  },
+  {
+   "default": "0",
+   "fetch_from": "production_item.has_batch_no",
+   "fieldname": "has_batch_no",
+   "fieldtype": "Check",
+   "label": "Has Batch No",
+   "read_only": 1
+  },
+  {
+   "depends_on": "has_serial_no",
+   "fieldname": "serial_no",
+   "fieldtype": "Small Text",
+   "label": "Serial Nos",
+   "no_copy": 1
+  },
+  {
+   "default": "0",
+   "depends_on": "has_batch_no",
+   "fieldname": "batch_size",
+   "fieldtype": "Float",
+   "label": "Batch Size"
+  },
+  {
+   "allow_on_submit": 1,
+   "description": "From Corrective Job Card",
+   "fieldname": "corrective_operation_cost",
+   "fieldtype": "Currency",
+   "label": "Corrective Operation Cost",
+   "no_copy": 1,
+   "print_hide": 1,
+   "read_only": 1
   }
  ],
  "icon": "fa fa-cogs",
@@ -495,7 +553,7 @@
  "image_field": "image",
  "is_submittable": 1,
  "links": [],
- "modified": "2021-03-16 13:27:51.116484",
+ "modified": "2021-06-20 15:19:14.902699",
  "modified_by": "Administrator",
  "module": "Manufacturing",
  "name": "Work Order",
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.py b/erpnext/manufacturing/doctype/work_order/work_order.py
index c06cf81..180815d 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/work_order.py
@@ -18,14 +18,16 @@
 from erpnext.stock.utils import get_bin, validate_warehouse_company, get_latest_stock_qty
 from erpnext.utilities.transaction_base import validate_uom_is_integer
 from frappe.model.mapper import get_mapped_doc
+from erpnext.stock.doctype.batch.batch import make_batch
+from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos, get_auto_serial_nos, auto_make_serial_nos
 
 class OverProductionError(frappe.ValidationError): pass
 class CapacityError(frappe.ValidationError): pass
 class StockOverProductionError(frappe.ValidationError): pass
 class OperationTooLongError(frappe.ValidationError): pass
 class ItemHasVariantError(frappe.ValidationError): pass
-
-from six import string_types
+class SerialNoQtyError(frappe.ValidationError):
+	pass
 
 
 class WorkOrder(Document):
@@ -123,7 +125,9 @@
 
 		variable_cost = self.actual_operating_cost if self.actual_operating_cost \
 			else self.planned_operating_cost
-		self.total_operating_cost = flt(self.additional_operating_cost) + flt(variable_cost)
+
+		self.total_operating_cost = (flt(self.additional_operating_cost)
+			+ flt(variable_cost) + flt(self.corrective_operation_cost))
 
 	def validate_work_order_against_so(self):
 		# already ordered qty
@@ -231,12 +235,15 @@
 
 		production_plan.run_method("update_produced_qty", produced_qty, self.production_plan_item)
 
+	def before_submit(self):
+		self.create_serial_no_batch_no()
+
 	def on_submit(self):
 		if not self.wip_warehouse:
 			frappe.throw(_("Work-in-Progress Warehouse is required before Submit"))
 		if not self.fg_warehouse:
 			frappe.throw(_("For Warehouse is required before Submit"))
-		
+
 		if self.production_plan and frappe.db.exists('Production Plan Item Reference',{'parent':self.production_plan}):
 			self.update_work_order_qty_in_combined_so()
 		else:
@@ -256,12 +263,76 @@
 			self.update_work_order_qty_in_combined_so()
 		else:
 			self.update_work_order_qty_in_so()
-			
+
 		self.delete_job_card()
 		self.update_completed_qty_in_material_request()
 		self.update_planned_qty()
 		self.update_ordered_qty()
 		self.update_reserved_qty_for_production()
+		self.delete_auto_created_batch_and_serial_no()
+
+	def create_serial_no_batch_no(self):
+		if not (self.has_serial_no or self.has_batch_no):
+			return
+
+		if not cint(frappe.db.get_single_value("Manufacturing Settings", "make_serial_no_batch_from_work_order")):
+			return
+
+		if self.has_batch_no:
+			self.create_batch_for_finished_good()
+
+		args = {
+			"item_code": self.production_item,
+			"work_order": self.name
+		}
+
+		if self.has_serial_no:
+			self.make_serial_nos(args)
+
+	def create_batch_for_finished_good(self):
+		total_qty = self.qty
+		if not self.batch_size:
+			self.batch_size = total_qty
+
+		while total_qty > 0:
+			qty = self.batch_size
+			if self.batch_size >= total_qty:
+				qty = total_qty
+
+			if total_qty > self.batch_size:
+				total_qty -= self.batch_size
+			else:
+				qty = total_qty
+				total_qty = 0
+
+			make_batch(frappe._dict({
+				"item": self.production_item,
+				"qty_to_produce": qty,
+				"reference_doctype": self.doctype,
+				"reference_name": self.name
+			}))
+
+	def delete_auto_created_batch_and_serial_no(self):
+		for row in frappe.get_all("Serial No", filters = {"work_order": self.name}):
+			frappe.delete_doc("Serial No", row.name)
+			self.db_set("serial_no", "")
+
+		for row in frappe.get_all("Batch", filters = {"reference_name": self.name}):
+			frappe.delete_doc("Batch", row.name)
+
+	def make_serial_nos(self, args):
+		serial_no_series = frappe.get_cached_value("Item", self.production_item, "serial_no_series")
+		if serial_no_series:
+			self.serial_no = get_auto_serial_nos(serial_no_series, self.qty)
+
+		if self.serial_no:
+			args.update({"serial_no": self.serial_no, "actual_qty": self.qty})
+			auto_make_serial_nos(args)
+
+		serial_nos_length = len(get_serial_nos(self.serial_no))
+		if serial_nos_length != self.qty:
+			frappe.throw(_("{0} Serial Numbers required for Item {1}. You have provided {2}.")
+				.format(self.qty, self.production_item, serial_nos_length), SerialNoQtyError)
 
 	def create_job_card(self):
 		manufacturing_settings_doc = frappe.get_doc("Manufacturing Settings")
@@ -269,32 +340,40 @@
 		enable_capacity_planning = not cint(manufacturing_settings_doc.disable_capacity_planning)
 		plan_days = cint(manufacturing_settings_doc.capacity_planning_for_days) or 30
 
-		for i, row in enumerate(self.operations):
-			self.set_operation_start_end_time(i, row)
-
-			if not row.workstation:
-				frappe.throw(_("Row {0}: select the workstation against the operation {1}")
-					.format(row.idx, row.operation))
-
-			original_start_time = row.planned_start_time
-			job_card_doc = create_job_card(self, row,
-				enable_capacity_planning=enable_capacity_planning, auto_create=True)
-
-			if enable_capacity_planning and job_card_doc:
-				row.planned_start_time = job_card_doc.time_logs[-1].from_time
-				row.planned_end_time = job_card_doc.time_logs[-1].to_time
-
-				if date_diff(row.planned_start_time, original_start_time) > plan_days:
-					frappe.message_log.pop()
-					frappe.throw(_("Unable to find the time slot in the next {0} days for the operation {1}.")
-						.format(plan_days, row.operation), CapacityError)
-
-				row.db_update()
+		for index, row in enumerate(self.operations):
+			qty = self.qty
+			while qty > 0:
+				qty = split_qty_based_on_batch_size(self, row, qty)
+				if row.job_card_qty > 0:
+					self.prepare_data_for_job_card(row, index,
+						plan_days, enable_capacity_planning)
 
 		planned_end_date = self.operations and self.operations[-1].planned_end_time
 		if planned_end_date:
 			self.db_set("planned_end_date", planned_end_date)
 
+	def prepare_data_for_job_card(self, row, index, plan_days, enable_capacity_planning):
+		self.set_operation_start_end_time(index, row)
+
+		if not row.workstation:
+			frappe.throw(_("Row {0}: select the workstation against the operation {1}")
+				.format(row.idx, row.operation))
+
+		original_start_time = row.planned_start_time
+		job_card_doc = create_job_card(self, row, auto_create=True,
+			enable_capacity_planning=enable_capacity_planning)
+
+		if enable_capacity_planning and job_card_doc:
+			row.planned_start_time = job_card_doc.time_logs[-1].from_time
+			row.planned_end_time = job_card_doc.time_logs[-1].to_time
+
+			if date_diff(row.planned_start_time, original_start_time) > plan_days:
+				frappe.message_log.pop()
+				frappe.throw(_("Unable to find the time slot in the next {0} days for the operation {1}.")
+					.format(plan_days, row.operation), CapacityError)
+
+			row.db_update()
+
 	def set_operation_start_end_time(self, idx, row):
 		"""Set start and end time for given operation. If first operation, set start as
 		`planned_start_date`, else add time diff to end time of earlier operation."""
@@ -361,7 +440,7 @@
 		work_order_qty = qty[0][0] if qty and qty[0][0] else 0
 		frappe.db.set_value('Sales Order Item',
 			self.sales_order_item, 'work_order_qty', flt(work_order_qty/total_bundle_qty, 2))
-		
+
 	def update_work_order_qty_in_combined_so(self):
 		total_bundle_qty = 1
 		if self.product_bundle_item:
@@ -374,7 +453,7 @@
 
 		prod_plan = frappe.get_doc('Production Plan', self.production_plan)
 		item_reference = frappe.get_value('Production Plan Item', self.production_plan_item, 'sales_order_item')
-		
+
 		for plan_reference in prod_plan.prod_plan_references:
 			work_order_qty = 0.0
 			if plan_reference.item_reference == item_reference:
@@ -382,7 +461,7 @@
 					work_order_qty = flt(plan_reference.qty) / total_bundle_qty
 				frappe.db.set_value('Sales Order Item',
 					plan_reference.sales_order_item, 'work_order_qty', work_order_qty)
-	
+
 	def update_completed_qty_in_material_request(self):
 		if self.material_request:
 			frappe.get_doc("Material Request", self.material_request).update_completed_qty([self.material_request_item])
@@ -666,6 +745,17 @@
 		bom.set_bom_material_details()
 		return bom
 
+	def update_batch_produced_qty(self, stock_entry_doc):
+		if not cint(frappe.db.get_single_value("Manufacturing Settings", "make_serial_no_batch_from_work_order")):
+			return
+
+		for row in stock_entry_doc.items:
+			if row.batch_no and (row.is_finished_item or row.is_scrap_item):
+				qty = frappe.get_all("Stock Entry Detail", filters = {"batch_no": row.batch_no, "docstatus": 1},
+					or_filters= {"is_finished_item": 1, "is_scrap_item": 1}, fields = ["sum(qty)"], as_list=1)[0][0]
+
+				frappe.db.set_value("Batch", row.batch_no, "produced_qty", flt(qty))
+
 @frappe.whitelist()
 @frappe.validate_and_sanitize_search_inputs
 def get_bom_operations(doctype, txt, searchfield, start, page_len, filters):
@@ -743,7 +833,7 @@
 	return wo_doc
 
 def add_variant_item(variant_items, wo_doc, bom_no, table_name="items"):
-	if isinstance(variant_items, string_types):
+	if isinstance(variant_items, str):
 		variant_items = json.loads(variant_items)
 
 	for item in variant_items:
@@ -823,6 +913,7 @@
 
 	stock_entry.set_stock_entry_type()
 	stock_entry.get_items()
+	stock_entry.set_serial_no_batch_for_finished_good()
 	return stock_entry.as_dict()
 
 @frappe.whitelist()
@@ -864,13 +955,47 @@
 
 @frappe.whitelist()
 def make_job_card(work_order, operations):
-	if isinstance(operations, string_types):
+	if isinstance(operations, str):
 		operations = json.loads(operations)
 
 	work_order = frappe.get_doc('Work Order', work_order)
 	for row in operations:
+		row = frappe._dict(row)
 		validate_operation_data(row)
-		create_job_card(work_order, row, row.get("qty"), auto_create=True)
+		qty = row.get("qty")
+		while qty > 0:
+			qty = split_qty_based_on_batch_size(work_order, row, qty)
+			if row.job_card_qty > 0:
+				create_job_card(work_order, row, auto_create=True)
+
+def split_qty_based_on_batch_size(wo_doc, row, qty):
+	if not cint(frappe.db.get_value("Operation",
+		row.operation, "create_job_card_based_on_batch_size")):
+		row.batch_size = row.get("qty") or wo_doc.qty
+
+	row.job_card_qty = row.batch_size
+	if row.batch_size and qty >= row.batch_size:
+		qty -= row.batch_size
+	elif qty > 0:
+		row.job_card_qty = qty
+		qty = 0
+
+	get_serial_nos_for_job_card(row, wo_doc)
+
+	return qty
+
+def get_serial_nos_for_job_card(row, wo_doc):
+	if not wo_doc.serial_no:
+		return
+
+	serial_nos = get_serial_nos(wo_doc.serial_no)
+	used_serial_nos = []
+	for d in frappe.get_all('Job Card', fields=['serial_no'],
+		filters={'docstatus': ('<', 2), 'work_order': wo_doc.name, 'operation_id': row.name}):
+		used_serial_nos.extend(get_serial_nos(d.serial_no))
+
+	serial_nos = sorted(list(set(serial_nos) - set(used_serial_nos)))
+	row.serial_no = '\n'.join(serial_nos[0:row.job_card_qty])
 
 def validate_operation_data(row):
 	if row.get("qty") <= 0:
@@ -889,20 +1014,22 @@
 			)
 		)
 
-def create_job_card(work_order, row, qty=0, enable_capacity_planning=False, auto_create=False):
+def create_job_card(work_order, row, enable_capacity_planning=False, auto_create=False):
 	doc = frappe.new_doc("Job Card")
 	doc.update({
 		'work_order': work_order.name,
 		'operation': row.get("operation"),
 		'workstation': row.get("workstation"),
 		'posting_date': nowdate(),
-		'for_quantity': qty or work_order.get('qty', 0),
+		'for_quantity': row.job_card_qty or work_order.get('qty', 0),
 		'operation_id': row.get("name"),
 		'bom_no': work_order.bom_no,
 		'project': work_order.project,
 		'company': work_order.company,
 		'sequence_id': row.get("sequence_id"),
-		'wip_warehouse': work_order.wip_warehouse
+		'wip_warehouse': work_order.wip_warehouse,
+		'hour_rate': row.get("hour_rate"),
+		'serial_no': row.get("serial_no")
 	})
 
 	if work_order.transfer_material_against == 'Job Card' and not work_order.skip_transfer:
diff --git a/erpnext/manufacturing/doctype/work_order/work_order_dashboard.py b/erpnext/manufacturing/doctype/work_order/work_order_dashboard.py
index 87c090f..9aa0715 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order_dashboard.py
+++ b/erpnext/manufacturing/doctype/work_order/work_order_dashboard.py
@@ -4,10 +4,17 @@
 def get_data():
 	return {
 		'fieldname': 'work_order',
+		'non_standard_fieldnames': {
+			'Batch': 'reference_name'
+		},
 		'transactions': [
 			{
 				'label': _('Transactions'),
 				'items': ['Stock Entry', 'Job Card', 'Pick List']
+			},
+			{
+				'label': _('Reference'),
+				'items': ['Serial No', 'Batch']
 			}
 		]
 	}
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/work_order_operation/work_order_operation.json b/erpnext/manufacturing/doctype/work_order_operation/work_order_operation.json
index e28a42d..f7b8787 100644
--- a/erpnext/manufacturing/doctype/work_order_operation/work_order_operation.json
+++ b/erpnext/manufacturing/doctype/work_order_operation/work_order_operation.json
@@ -7,8 +7,9 @@
   "details",
   "operation",
   "bom",
-  "sequence_id",
+  "column_break_4",
   "description",
+  "sequence_id",
   "col_break1",
   "completed_qty",
   "status",
@@ -198,6 +199,10 @@
    "label": "Sequence ID",
    "print_hide": 1,
    "read_only": 1
+  },
+  {
+   "fieldname": "column_break_4",
+   "fieldtype": "Column Break"
   }
  ],
  "index_web_pages_for_search": 1,
diff --git a/erpnext/manufacturing/report/cost_of_poor_quality_report/__init__.py b/erpnext/manufacturing/report/cost_of_poor_quality_report/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/manufacturing/report/cost_of_poor_quality_report/__init__.py
diff --git a/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.js b/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.js
new file mode 100644
index 0000000..97e7e0a
--- /dev/null
+++ b/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.js
@@ -0,0 +1,105 @@
+// Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+/* eslint-disable */
+
+frappe.query_reports["Cost of Poor Quality Report"] = {
+	"filters": [
+		{
+			label: __("Company"),
+			fieldname: "company",
+			fieldtype: "Link",
+			options: "Company",
+			default: frappe.defaults.get_user_default("Company"),
+			reqd: 1
+		},
+		{
+			label: __("From Date"),
+			fieldname:"from_date",
+			fieldtype: "Datetime",
+			default: frappe.datetime.convert_to_system_tz(frappe.datetime.add_months(frappe.datetime.now_datetime(), -1)),
+			reqd: 1
+		},
+		{
+			label: __("To Date"),
+			fieldname:"to_date",
+			fieldtype: "Datetime",
+			default: frappe.datetime.now_datetime(),
+			reqd: 1,
+		},
+		{
+			label: __("Job Card"),
+			fieldname: "name",
+			fieldtype: "Link",
+			options: "Job Card",
+			get_query: function() {
+				return {
+					filters: {
+						is_corrective_job_card: 1,
+						docstatus: 1
+					}
+				}
+			}
+		},
+		{
+			label: __("Work Order"),
+			fieldname: "work_order",
+			fieldtype: "Link",
+			options: "Work Order"
+		},
+		{
+			label: __("Operation"),
+			fieldname: "operation",
+			fieldtype: "Link",
+			options: "Operation",
+			get_query: function() {
+				return {
+					filters: {
+						is_corrective_operation: 1
+					}
+				}
+			}
+		},
+		{
+			label: __("Workstation"),
+			fieldname: "workstation",
+			fieldtype: "Link",
+			options: "Workstation"
+		},
+		{
+			label: __("Item"),
+			fieldname: "production_item",
+			fieldtype: "Link",
+			options: "Item"
+		},
+		{
+			label: __("Serial No"),
+			fieldname: "serial_no",
+			fieldtype: "Link",
+			options: "Serial No",
+			depends_on: "eval: doc.production_item",
+			get_query: function() {
+				var item_code = frappe.query_report.get_filter_value('production_item');
+				return {
+					filters: {
+						item_code: item_code
+					}
+				}
+			}
+		},
+		{
+			label: __("Batch No"),
+			fieldname: "batch_no",
+			fieldtype: "Link",
+			options: "Batch No",
+			depends_on: "eval: doc.production_item",
+			get_query: function() {
+				var item_code = frappe.query_report.get_filter_value('production_item');
+				return {
+					filters: {
+						item: item_code
+					}
+				}
+			}
+		},
+	]
+};
diff --git a/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.json b/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.json
new file mode 100644
index 0000000..ee63bc1
--- /dev/null
+++ b/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.json
@@ -0,0 +1,33 @@
+{
+ "add_total_row": 0,
+ "columns": [],
+ "creation": "2021-01-11 11:10:58.292896",
+ "disable_prepared_report": 0,
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "json": "{}",
+ "modified": "2021-01-11 11:11:03.594242",
+ "modified_by": "Administrator",
+ "module": "Manufacturing",
+ "name": "Cost of Poor Quality Report",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Job Card",
+ "report_name": "Cost of Poor Quality Report",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "System Manager"
+  },
+  {
+   "role": "Manufacturing User"
+  },
+  {
+   "role": "Manufacturing Manager"
+  }
+ ]
+}
\ No newline at end of file
diff --git a/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.py b/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.py
new file mode 100644
index 0000000..9f81e7d
--- /dev/null
+++ b/erpnext/manufacturing/report/cost_of_poor_quality_report/cost_of_poor_quality_report.py
@@ -0,0 +1,127 @@
+# Copyright (c) 2013, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+import frappe
+from frappe import _
+from frappe.utils import flt
+
+def execute(filters=None):
+	columns, data = [], []
+
+	columns = get_columns(filters)
+	data = get_data(filters)
+
+	return columns, data
+
+def get_data(report_filters):
+	data = []
+	operations = frappe.get_all("Operation", filters = {"is_corrective_operation": 1})
+	if operations:
+		operations = [d.name for d in operations]
+		fields = ["production_item as item_code", "item_name", "work_order", "operation",
+			"workstation", "total_time_in_mins", "name", "hour_rate", "serial_no", "batch_no"]
+
+		filters = get_filters(report_filters, operations)
+
+		job_cards = frappe.get_all("Job Card", fields = fields,
+			filters = filters)
+
+		for row in job_cards:
+			row.operating_cost = flt(row.hour_rate) * (flt(row.total_time_in_mins) / 60.0)
+			update_raw_material_cost(row, report_filters)
+			data.append(row)
+
+	return data
+
+def get_filters(report_filters, operations):
+	filters = {"docstatus": 1, "operation": ("in", operations), "is_corrective_job_card": 1}
+	for field in ["name", "work_order", "operation", "workstation", "company", "serial_no", "batch_no", "production_item"]:
+		if report_filters.get(field):
+			if field != 'serial_no':
+				filters[field] = report_filters.get(field)
+			else:
+				filters[field] = ('like', '% {} %'.format(report_filters.get(field)))
+
+	return filters
+
+def update_raw_material_cost(row, filters):
+	row.rm_cost = 0.0
+	for data in frappe.get_all("Job Card Item", fields = ["amount"],
+		filters={"parent": row.name, "docstatus": 1}):
+		row.rm_cost += data.amount
+
+def get_columns(filters):
+	return [
+		{
+			"label": _("Job Card"),
+			"fieldtype": "Link",
+			"fieldname": "name",
+			"options": "Job Card",
+			"width": "100"
+		},
+		{
+			"label": _("Work Order"),
+			"fieldtype": "Link",
+			"fieldname": "work_order",
+			"options": "Work Order",
+			"width": "100"
+		},
+		{
+			"label": _("Item Code"),
+			"fieldtype": "Link",
+			"fieldname": "item_code",
+			"options": "Item",
+			"width": "100"
+		},
+		{
+			"label": _("Item Name"),
+			"fieldtype": "Data",
+			"fieldname": "item_name",
+			"width": "100"
+		},
+		{
+			"label": _("Operation"),
+			"fieldtype": "Link",
+			"fieldname": "operation",
+			"options": "Operation",
+			"width": "100"
+		},
+		{
+			"label": _("Serial No"),
+			"fieldtype": "Data",
+			"fieldname": "serial_no",
+			"width": "100"
+		},
+		{
+			"label": _("Batch No"),
+			"fieldtype": "Data",
+			"fieldname": "batch_no",
+			"width": "100"
+		},
+		{
+			"label": _("Workstation"),
+			"fieldtype": "Link",
+			"fieldname": "workstation",
+			"options": "Workstation",
+			"width": "100"
+		},
+		{
+			"label": _("Operating Cost"),
+			"fieldtype": "Currency",
+			"fieldname": "operating_cost",
+			"width": "100"
+		},
+		{
+			"label": _("Raw Material Cost"),
+			"fieldtype": "Currency",
+			"fieldname": "rm_cost",
+			"width": "100"
+		},
+		{
+			"label": _("Total Time (in Mins)"),
+			"fieldtype": "Float",
+			"fieldname": "total_time_in_mins",
+			"width": "100"
+		}
+	]
\ No newline at end of file
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 339e7f9..986b0c5 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -290,3 +290,5 @@
 erpnext.patches.v13_0.set_training_event_attendance
 erpnext.patches.v13_0.bill_for_rejected_quantity_in_purchase_invoice
 erpnext.patches.v13_0.rename_issue_status_hold_to_on_hold
+erpnext.patches.v13_0.bill_for_rejected_quantity_in_purchase_invoice
+erpnext.patches.v13_0.update_job_card_details
diff --git a/erpnext/patches/v13_0/update_job_card_details.py b/erpnext/patches/v13_0/update_job_card_details.py
new file mode 100644
index 0000000..d4e65c6
--- /dev/null
+++ b/erpnext/patches/v13_0/update_job_card_details.py
@@ -0,0 +1,16 @@
+# Copyright (c) 2019, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doc("manufacturing", "doctype", "job_card")
+	frappe.reload_doc("manufacturing", "doctype", "job_card_item")
+	frappe.reload_doc("manufacturing", "doctype", "work_order_operation")
+
+	frappe.db.sql(""" update `tabJob Card` jc, `tabWork Order Operation` wo
+		SET	jc.hour_rate =  wo.hour_rate
+		WHERE
+			jc.operation_id = wo.name and jc.docstatus < 2 and wo.hour_rate > 0
+	""")
\ No newline at end of file
diff --git a/erpnext/payroll/doctype/payroll_entry/payroll_entry.js b/erpnext/payroll/doctype/payroll_entry/payroll_entry.js
index f289260..496c37b 100644
--- a/erpnext/payroll/doctype/payroll_entry/payroll_entry.js
+++ b/erpnext/payroll/doctype/payroll_entry/payroll_entry.js
@@ -135,10 +135,26 @@
 		});
 
 		frm.set_query('employee', 'employees', () => {
-			if (!frm.doc.company) {
-				frappe.msgprint(__("Please set a Company"));
-				return [];
+			let error_fields = [];
+			let mandatory_fields = ['company', 'payroll_frequency', 'start_date', 'end_date'];
+
+			let message = __('Mandatory fields required in {0}', [__(frm.doc.doctype)]);
+
+			mandatory_fields.forEach(field => {
+				if (!frm.doc[field]) {
+					error_fields.push(frappe.unscrub(field));
+				}
+			});
+
+			if (error_fields && error_fields.length) {
+				message = message + '<br><br><ul><li>' + error_fields.join('</li><li>') + "</ul>";
+				frappe.throw({
+					message: message,
+					indicator: 'red',
+					title: __('Missing Fields')
+				});
 			}
+
 			return {
 				query: "erpnext.payroll.doctype.payroll_entry.payroll_entry.employee_query",
 				filters: frm.events.get_employee_filters(frm)
@@ -148,25 +164,22 @@
 
 	get_employee_filters: function (frm) {
 		let filters = {};
-		filters['company'] = frm.doc.company;
-		filters['start_date'] = frm.doc.start_date;
-		filters['end_date'] = frm.doc.end_date;
 		filters['salary_slip_based_on_timesheet'] = frm.doc.salary_slip_based_on_timesheet;
-		filters['payroll_frequency'] = frm.doc.payroll_frequency;
-		filters['payroll_payable_account'] = frm.doc.payroll_payable_account;
-		filters['currency'] = frm.doc.currency;
 
-		if (frm.doc.department) {
-			filters['department'] = frm.doc.department;
-		}
-		if (frm.doc.branch) {
-			filters['branch'] = frm.doc.branch;
-		}
-		if (frm.doc.designation) {
-			filters['designation'] = frm.doc.designation;
-		}
+		let fields = ['company', 'start_date', 'end_date', 'payroll_frequency', 'payroll_payable_account',
+			'currency', 'department', 'branch', 'designation'];
+
+		fields.forEach(field => {
+			if (frm.doc[field]) {
+				filters[field] = frm.doc[field];
+			}
+		});
+
 		if (frm.doc.employees) {
-			filters['employees'] = frm.doc.employees.filter(d => d.employee).map(d => d.employee);
+			let employees = frm.doc.employees.filter(d => d.employee).map(d => d.employee);
+			if (employees && employees.length) {
+				filters['employees'] = employees;
+			}
 		}
 		return filters;
 	},
diff --git a/erpnext/payroll/doctype/payroll_entry/payroll_entry.py b/erpnext/payroll/doctype/payroll_entry/payroll_entry.py
index 5c7c0a3..36e728f 100644
--- a/erpnext/payroll/doctype/payroll_entry/payroll_entry.py
+++ b/erpnext/payroll/doctype/payroll_entry/payroll_entry.py
@@ -680,6 +680,10 @@
 	conditions = []
 	include_employees = []
 	emp_cond = ''
+
+	if not filters.payroll_frequency:
+		frappe.throw(_('Select Payroll Frequency.'))
+
 	if filters.start_date and filters.end_date:
 		employee_list = get_employee_list(filters)
 		emp = filters.get('employees')
diff --git a/erpnext/selling/doctype/product_bundle/product_bundle.py b/erpnext/selling/doctype/product_bundle/product_bundle.py
index d3281f7..ae3482f 100644
--- a/erpnext/selling/doctype/product_bundle/product_bundle.py
+++ b/erpnext/selling/doctype/product_bundle/product_bundle.py
@@ -4,6 +4,8 @@
 from __future__ import unicode_literals
 import frappe
 
+from frappe.utils import get_link_to_form
+
 from frappe import _
 
 from frappe.model.document import Document
@@ -18,6 +20,27 @@
 		from erpnext.utilities.transaction_base import validate_uom_is_integer
 		validate_uom_is_integer(self, "uom", "qty")
 
+	def on_trash(self):
+		linked_doctypes = ["Delivery Note", "Sales Invoice", "POS Invoice", "Purchase Receipt", "Purchase Invoice",
+			"Stock Entry", "Stock Reconciliation", "Sales Order", "Purchase Order", "Material Request"]
+
+		invoice_links = []
+		for doctype in linked_doctypes:
+			item_doctype = doctype + " Item"
+
+			if doctype == "Stock Entry":
+				item_doctype = doctype + " Detail"
+
+			invoices = frappe.db.get_all(item_doctype, {"item_code": self.new_item_code, "docstatus": 1}, ["parent"])
+
+			for invoice in invoices:
+				invoice_links.append(get_link_to_form(doctype, invoice['parent']))
+
+		if len(invoice_links):
+			frappe.throw(
+				"This Product Bundle is linked with {0}. You will have to cancel these documents in order to delete this Product Bundle"
+				.format(", ".join(invoice_links)), title=_("Not Allowed"))
+
 	def validate_main_item(self):
 		"""Validates, main Item is not a stock item"""
 		if frappe.db.get_value("Item", self.new_item_code, "is_stock_item"):
diff --git a/erpnext/stock/doctype/batch/batch.json b/erpnext/stock/doctype/batch/batch.json
index 943cb34..e6d2e13 100644
--- a/erpnext/stock/doctype/batch/batch.json
+++ b/erpnext/stock/doctype/batch/batch.json
@@ -1,4 +1,5 @@
 {
+ "actions": [],
  "allow_import": 1,
  "autoname": "field:batch_id",
  "creation": "2013-03-05 14:50:38",
@@ -25,7 +26,11 @@
   "reference_doctype",
   "reference_name",
   "section_break_7",
-  "description"
+  "description",
+  "manufacturing_section",
+  "qty_to_produce",
+  "column_break_23",
+  "produced_qty"
  ],
  "fields": [
   {
@@ -160,13 +165,35 @@
    "label": "Batch UOM",
    "options": "UOM",
    "read_only": 1
+  },
+  {
+   "fieldname": "manufacturing_section",
+   "fieldtype": "Section Break",
+   "label": "Manufacturing"
+  },
+  {
+   "fieldname": "qty_to_produce",
+   "fieldtype": "Float",
+   "label": "Qty To Produce",
+   "read_only": 1
+  },
+  {
+   "fieldname": "column_break_23",
+   "fieldtype": "Column Break"
+  },
+  {
+   "fieldname": "produced_qty",
+   "fieldtype": "Float",
+   "label": "Produced Qty",
+   "read_only": 1
   }
  ],
  "icon": "fa fa-archive",
  "idx": 1,
  "image_field": "image",
+ "links": [],
  "max_attachments": 5,
- "modified": "2020-09-18 17:26:09.703215",
+ "modified": "2021-01-07 11:10:09.149170",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Batch",
diff --git a/erpnext/stock/doctype/batch/batch.py b/erpnext/stock/doctype/batch/batch.py
index 30bdbe8..b6eef6c 100644
--- a/erpnext/stock/doctype/batch/batch.py
+++ b/erpnext/stock/doctype/batch/batch.py
@@ -308,3 +308,8 @@
 	message = "Serial Nos" if len(serial_nos) > 1 else "Serial No"
 	frappe.throw(_("There is no batch found against the {0}: {1}")
 		.format(message, serial_no_link))
+
+def make_batch(args):
+	if frappe.db.get_value("Item", args.item, "has_batch_no"):
+		args.doctype = "Batch"
+		frappe.get_doc(args).insert().name
diff --git a/erpnext/stock/doctype/serial_no/serial_no.json b/erpnext/stock/doctype/serial_no/serial_no.json
index 3acf3a9..a3d44af 100644
--- a/erpnext/stock/doctype/serial_no/serial_no.json
+++ b/erpnext/stock/doctype/serial_no/serial_no.json
@@ -57,7 +57,8 @@
   "more_info",
   "serial_no_details",
   "company",
-  "status"
+  "status",
+  "work_order"
  ],
  "fields": [
   {
@@ -422,12 +423,18 @@
    "label": "Status",
    "options": "\nActive\nInactive\nDelivered\nExpired",
    "read_only": 1
+  },
+  {
+   "fieldname": "work_order",
+   "fieldtype": "Link",
+   "label": "Work Order",
+   "options": "Work Order"
   }
  ],
  "icon": "fa fa-barcode",
  "idx": 1,
  "links": [],
- "modified": "2020-07-20 20:50:16.660433",
+ "modified": "2021-01-08 14:31:15.375996",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Serial No",
diff --git a/erpnext/stock/doctype/serial_no/serial_no.py b/erpnext/stock/doctype/serial_no/serial_no.py
index b236f6a..bad7b60 100644
--- a/erpnext/stock/doctype/serial_no/serial_no.py
+++ b/erpnext/stock/doctype/serial_no/serial_no.py
@@ -473,16 +473,13 @@
 		if s.strip()]
 
 def update_args_for_serial_no(serial_no_doc, serial_no, args, is_new=False):
-	serial_no_doc.update({
-		"item_code": args.get("item_code"),
-		"company": args.get("company"),
-		"batch_no": args.get("batch_no"),
-		"via_stock_ledger": args.get("via_stock_ledger") or True,
-		"supplier": args.get("supplier"),
-		"location": args.get("location"),
-		"warehouse": (args.get("warehouse")
-			if args.get("actual_qty", 0) > 0 else None)
-	})
+	for field in ["item_code", "work_order", "company", "batch_no", "supplier", "location"]:
+		if args.get(field):
+			serial_no_doc.set(field, args.get(field))
+
+	serial_no_doc.via_stock_ledger = args.get("via_stock_ledger") or True
+	serial_no_doc.warehouse = (args.get("warehouse")
+		if args.get("actual_qty", 0) > 0 else None)
 
 	if is_new:
 		serial_no_doc.serial_no = serial_no
diff --git a/erpnext/stock/doctype/stock_entry/stock_entry.py b/erpnext/stock/doctype/stock_entry/stock_entry.py
index 66f8b63..8f27ef4 100644
--- a/erpnext/stock/doctype/stock_entry/stock_entry.py
+++ b/erpnext/stock/doctype/stock_entry/stock_entry.py
@@ -498,6 +498,7 @@
 				d.basic_amount = flt(flt(d.transfer_qty) * flt(d.basic_rate), d.precision("basic_amount"))
 				if not d.t_warehouse:
 					outgoing_items_cost += flt(d.basic_amount)
+
 		return outgoing_items_cost
 
 	def get_args_for_incoming_rate(self, item):
@@ -854,6 +855,7 @@
 				pro_doc.run_method("update_work_order_qty")
 				if self.purpose == "Manufacture":
 					pro_doc.run_method("update_planned_qty")
+					pro_doc.update_batch_produced_qty(self)
 
 			if not pro_doc.operations:
 				pro_doc.set_actual_dates()
@@ -1076,18 +1078,54 @@
 			# in case of BOM
 			to_warehouse = item.get("default_warehouse")
 
+		args = {
+			"to_warehouse": to_warehouse,
+			"from_warehouse": "",
+			"qty": self.fg_completed_qty,
+			"item_name": item.item_name,
+			"description": item.description,
+			"stock_uom": item.stock_uom,
+			"expense_account": item.get("expense_account"),
+			"cost_center": item.get("buying_cost_center"),
+			"is_finished_item": 1
+		}
+
+		if self.work_order and self.pro_doc.has_batch_no:
+			self.set_batchwise_finished_goods(args, item)
+		else:
+			self.add_finisged_goods(args, item)
+
+	def set_batchwise_finished_goods(self, args, item):
+		qty = flt(self.fg_completed_qty)
+		filters = {
+			"reference_name": self.pro_doc.name,
+			"reference_doctype": self.pro_doc.doctype,
+			"qty_to_produce": (">", 0)
+		}
+
+		fields = ["qty_to_produce as qty", "produced_qty", "name"]
+
+		for row in frappe.get_all("Batch", filters = filters, fields = fields, order_by="creation asc"):
+			batch_qty = flt(row.qty) - flt(row.produced_qty)
+			if not batch_qty:
+				continue
+
+			if qty <=0:
+				break
+
+			fg_qty = batch_qty
+			if batch_qty >= qty:
+				fg_qty = qty
+
+			qty -= batch_qty
+			args["qty"] = fg_qty
+			args["batch_no"] = row.name
+
+			self.add_finisged_goods(args, item)
+
+	def add_finisged_goods(self, args, item):
 		self.add_to_stock_entry_detail({
-			item.name: {
-				"to_warehouse": to_warehouse,
-				"from_warehouse": "",
-				"qty": self.fg_completed_qty,
-				"item_name": item.item_name,
-				"description": item.description,
-				"stock_uom": item.stock_uom,
-				"expense_account": item.get("expense_account"),
-				"cost_center": item.get("buying_cost_center"),
-				"is_finished_item": 1
-			}
+			item.name: args
 		}, bom_no = self.bom_no)
 
 	def get_bom_raw_materials(self, qty):
@@ -1524,6 +1562,36 @@
 				material_requests.append(material_request)
 				frappe.db.set_value('Material Request', material_request, 'transfer_status', status)
 
+	def set_serial_no_batch_for_finished_good(self):
+		args = {}
+		if self.pro_doc.serial_no:
+			self.get_serial_nos_for_fg(args)
+
+		for row in self.items:
+			if row.is_finished_item and row.item_code == self.pro_doc.production_item:
+				if args.get("serial_no"):
+					row.serial_no = '\n'.join(args["serial_no"][0: cint(row.qty)])
+
+	def get_serial_nos_for_fg(self, args):
+		fields = ["`tabStock Entry`.`name`", "`tabStock Entry Detail`.`qty`",
+			"`tabStock Entry Detail`.`serial_no`", "`tabStock Entry Detail`.`batch_no`"]
+
+		filters = [["Stock Entry","work_order","=",self.work_order], ["Stock Entry","purpose","=","Manufacture"],
+			["Stock Entry","docstatus","=",1], ["Stock Entry Detail","item_code","=",self.pro_doc.production_item]]
+
+		stock_entries = frappe.get_all("Stock Entry", fields=fields, filters=filters)
+
+		if self.pro_doc.serial_no:
+			args["serial_no"] = self.get_available_serial_nos(stock_entries)
+
+	def get_available_serial_nos(self, stock_entries):
+		used_serial_nos = []
+		for row in stock_entries:
+			if row.serial_no:
+				used_serial_nos.extend(get_serial_nos(row.serial_no))
+
+		return sorted(list(set(get_serial_nos(self.pro_doc.serial_no)) - set(used_serial_nos)))
+
 @frappe.whitelist()
 def move_sample_to_retention_warehouse(company, items):
 	if isinstance(items, string_types):
@@ -1635,6 +1703,10 @@
 		if bom.quantity:
 			operating_cost_per_unit = flt(bom.operating_cost) / flt(bom.quantity)
 
+	if work_order and work_order.produced_qty and cint(frappe.db.get_single_value('Manufacturing Settings',
+		'add_corrective_operation_cost_in_finished_good_valuation')):
+		operating_cost_per_unit += flt(work_order.corrective_operation_cost) / flt(work_order.produced_qty)
+
 	return operating_cost_per_unit
 
 def get_used_alternative_items(purchase_order=None, work_order=None):
diff --git a/erpnext/stock/doctype/stock_entry_detail/stock_entry_detail.json b/erpnext/stock/doctype/stock_entry_detail/stock_entry_detail.json
index 864ff48..a178283 100644
--- a/erpnext/stock/doctype/stock_entry_detail/stock_entry_detail.json
+++ b/erpnext/stock/doctype/stock_entry_detail/stock_entry_detail.json
@@ -18,6 +18,7 @@
   "col_break2",
   "is_finished_item",
   "is_scrap_item",
+  "quality_inspection",
   "subcontracted_item",
   "section_break_8",
   "description",
@@ -69,7 +70,6 @@
   "putaway_rule",
   "column_break_51",
   "reference_purchase_receipt",
-  "quality_inspection",
   "job_card_item"
  ],
  "fields": [
@@ -548,7 +548,7 @@
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-02-11 13:47:50.158754",
+ "modified": "2021-04-22 20:08:23.799715",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Stock Entry Detail",
diff --git a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js
index 3badc7e..76a3f1a 100644
--- a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js
+++ b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.js
@@ -48,37 +48,54 @@
 	},
 
 	get_items: function(frm) {
-		frappe.prompt({label:"Warehouse", fieldname: "warehouse", fieldtype:"Link", options:"Warehouse", reqd: 1,
+		let fields = [{
+			label: 'Warehouse', fieldname: 'warehouse', fieldtype: 'Link', options: 'Warehouse', reqd: 1,
 			"get_query": function() {
 				return {
 					"filters": {
 						"company": frm.doc.company,
 					}
-				}
-			}},
-			function(data) {
-				frappe.call({
-					method:"erpnext.stock.doctype.stock_reconciliation.stock_reconciliation.get_items",
-					args: {
-						warehouse: data.warehouse,
-						posting_date: frm.doc.posting_date,
-						posting_time: frm.doc.posting_time,
-						company:frm.doc.company
-					},
-					callback: function(r) {
-						var items = [];
-						frm.clear_table("items");
-						for(var i=0; i< r.message.length; i++) {
-							var d = frm.add_child("items");
-							$.extend(d, r.message[i]);
-							if(!d.qty) d.qty = null;
-							if(!d.valuation_rate) d.valuation_rate = null;
-						}
-						frm.refresh_field("items");
-					}
-				});
+				};
 			}
-		, __("Get Items"), __("Update"));
+		}, {
+			label: "Item Code", fieldname: "item_code", fieldtype: "Link", options: "Item",
+			"get_query": function() {
+				return {
+					"filters": {
+						"disabled": 0,
+					}
+				};
+			}
+		}];
+
+		frappe.prompt(fields, function(data) {
+			frappe.call({
+				method: "erpnext.stock.doctype.stock_reconciliation.stock_reconciliation.get_items",
+				args: {
+					warehouse: data.warehouse,
+					posting_date: frm.doc.posting_date,
+					posting_time: frm.doc.posting_time,
+					company: frm.doc.company,
+					item_code: data.item_code
+				},
+				callback: function(r) {
+					frm.clear_table("items");
+					for (var i=0; i<r.message.length; i++) {
+						var d = frm.add_child("items");
+						$.extend(d, r.message[i]);
+
+						if (!d.qty) {
+							d.qty = 0;
+						}
+
+						if (!d.valuation_rate) {
+							d.valuation_rate = 0;
+						}
+					}
+					frm.refresh_field("items");
+				}
+			});
+		}, __("Get Items"), __("Update"));
 	},
 
 	posting_date: function(frm) {
diff --git a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
index 93ab40a..2956384 100644
--- a/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
+++ b/erpnext/stock/doctype/stock_reconciliation/stock_reconciliation.py
@@ -481,45 +481,99 @@
 			self._cancel()
 
 @frappe.whitelist()
-def get_items(warehouse, posting_date, posting_time, company):
+def get_items(warehouse, posting_date, posting_time, company, item_code=None):
+	items = [frappe._dict({
+		'item_code': item_code,
+		'warehouse': warehouse
+	})]
+
+	if not item_code:
+		items = get_items_for_stock_reco(warehouse, company)
+
+	res = []
+	itemwise_batch_data = get_itemwise_batch(warehouse, posting_date, company, item_code)
+
+	for d in items:
+		if d.item_code in itemwise_batch_data:
+			stock_bal = get_stock_balance(d.item_code, d.warehouse,
+				posting_date, posting_time, with_valuation_rate=True)
+
+			for row in itemwise_batch_data.get(d.item_code):
+				args = get_item_data(row, row.qty, stock_bal[1])
+				res.append(args)
+		else:
+			stock_bal = get_stock_balance(d.item_code, d.warehouse, posting_date, posting_time,
+				with_valuation_rate=True , with_serial_no=cint(d.has_serial_no))
+
+			args = get_item_data(d, stock_bal[0], stock_bal[1],
+				stock_bal[2] if cint(d.has_serial_no) else '')
+
+			res.append(args)
+
+	return res
+
+def get_items_for_stock_reco(warehouse, company):
 	lft, rgt = frappe.db.get_value("Warehouse", warehouse, ["lft", "rgt"])
 	items = frappe.db.sql("""
-		select i.name, i.item_name, bin.warehouse, i.has_serial_no
+		select i.name as item_code, i.item_name, bin.warehouse as warehouse, i.has_serial_no, i.has_batch_no
 		from tabBin bin, tabItem i
-		where i.name=bin.item_code and i.disabled=0 and i.is_stock_item = 1
-		and i.has_variants = 0 and i.has_batch_no = 0
-		and exists(select name from `tabWarehouse` where lft >= %s and rgt <= %s and name=bin.warehouse)
-	""", (lft, rgt))
+		where i.name=bin.item_code and IFNULL(i.disabled, 0) = 0 and i.is_stock_item = 1
+		and i.has_variants = 0 and exists(
+			select name from `tabWarehouse` where lft >= %s and rgt <= %s and name=bin.warehouse
+		)
+	""", (lft, rgt), as_dict=1)
 
 	items += frappe.db.sql("""
-		select i.name, i.item_name, id.default_warehouse, i.has_serial_no
+		select i.name as item_code, i.item_name, id.default_warehouse as warehouse, i.has_serial_no, i.has_batch_no
 		from tabItem i, `tabItem Default` id
 		where i.name = id.parent
 			and exists(select name from `tabWarehouse` where lft >= %s and rgt <= %s and name=id.default_warehouse)
-			and i.is_stock_item = 1 and i.has_batch_no = 0
-			and i.has_variants = 0 and i.disabled = 0 and id.company=%s
+			and i.is_stock_item = 1 and i.has_variants = 0 and IFNULL(i.disabled, 0) = 0 and id.company=%s
 		group by i.name
-	""", (lft, rgt, company))
+	""", (lft, rgt, company), as_dict=1)
 
-	res = []
-	for d in set(items):
-		stock_bal = get_stock_balance(d[0], d[2], posting_date, posting_time,
-			with_valuation_rate=True , with_serial_no=cint(d[3]))
+	return items
 
-		if frappe.db.get_value("Item", d[0], "disabled") == 0:
-			res.append({
-				"item_code": d[0],
-				"warehouse": d[2],
-				"qty": stock_bal[0],
-				"item_name": d[1],
-				"valuation_rate": stock_bal[1],
-				"current_qty": stock_bal[0],
-				"current_valuation_rate": stock_bal[1],
-				"current_serial_no": stock_bal[2] if cint(d[3]) else '',
-				"serial_no": stock_bal[2] if cint(d[3]) else ''
-			})
+def get_item_data(row, qty, valuation_rate, serial_no=None):
+	return {
+		'item_code': row.item_code,
+		'warehouse': row.warehouse,
+		'qty': qty,
+		'item_name': row.item_name,
+		'valuation_rate': valuation_rate,
+		'current_qty': qty,
+		'current_valuation_rate': valuation_rate,
+		'current_serial_no': serial_no,
+		'serial_no': serial_no,
+		'batch_no': row.get('batch_no')
+	}
 
-	return res
+def get_itemwise_batch(warehouse, posting_date, company, item_code=None):
+	from erpnext.stock.report.batch_wise_balance_history.batch_wise_balance_history import execute
+	itemwise_batch_data = {}
+
+	filters = frappe._dict({
+		'warehouse': warehouse,
+		'from_date': posting_date,
+		'to_date': posting_date,
+		'company': company
+	})
+
+	if item_code:
+		filters.item_code = item_code
+
+	columns, data = execute(filters)
+
+	for row in data:
+		itemwise_batch_data.setdefault(row[0], []).append(frappe._dict({
+			'item_code': row[0],
+			'warehouse': warehouse,
+			'qty': row[8],
+			'item_name': row[1],
+			'batch_no': row[4]
+		}))
+
+	return itemwise_batch_data
 
 @frappe.whitelist()
 def get_stock_balance_for(item_code, warehouse,
diff --git a/erpnext/stock/report/incorrect_balance_qty_after_transaction/__init__.py b/erpnext/stock/report/incorrect_balance_qty_after_transaction/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/stock/report/incorrect_balance_qty_after_transaction/__init__.py
diff --git a/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.js b/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.js
new file mode 100644
index 0000000..bf11277
--- /dev/null
+++ b/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.js
@@ -0,0 +1,27 @@
+// Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+/* eslint-disable */
+
+frappe.query_reports["Incorrect Balance Qty After Transaction"] = {
+	"filters": [
+		{
+			label: __("Company"),
+			fieldtype: "Link",
+			fieldname: "company",
+			options: "Company",
+			default: frappe.defaults.get_user_default("Company"),
+			reqd: 1
+		},
+		{
+			label: __('Item Code'),
+			fieldtype: 'Link',
+			fieldname: 'item_code',
+			options: 'Item'
+		},
+		{
+			label: __('Warehouse'),
+			fieldtype: 'Link',
+			fieldname: 'warehouse'
+		}
+	]
+};
diff --git a/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.json b/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.json
new file mode 100644
index 0000000..a5815bc
--- /dev/null
+++ b/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.json
@@ -0,0 +1,32 @@
+{
+ "add_total_row": 0,
+ "columns": [],
+ "creation": "2021-05-12 16:47:58.717853",
+ "disable_prepared_report": 0,
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "modified": "2021-05-12 16:48:28.347575",
+ "modified_by": "Administrator",
+ "module": "Stock",
+ "name": "Incorrect Balance Qty After Transaction",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Stock Ledger Entry",
+ "report_name": "Incorrect Balance Qty After Transaction",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "Stock User"
+  },
+  {
+   "role": "Stock Manager"
+  },
+  {
+   "role": "Purchase User"
+  }
+ ]
+}
\ No newline at end of file
diff --git a/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.py b/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.py
new file mode 100644
index 0000000..cf174c9
--- /dev/null
+++ b/erpnext/stock/report/incorrect_balance_qty_after_transaction/incorrect_balance_qty_after_transaction.py
@@ -0,0 +1,111 @@
+# Copyright (c) 2013, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+import frappe
+from frappe import _
+from six import iteritems
+from frappe.utils import flt
+
+def execute(filters=None):
+	columns, data = [], []
+	columns = get_columns()
+	data = get_data(filters)
+	return columns, data
+
+def get_data(filters):
+	data = get_stock_ledger_entries(filters)
+	itewise_balance_qty = {}
+
+	for row in data:
+		key = (row.item_code, row.warehouse)
+		itewise_balance_qty.setdefault(key, []).append(row)
+
+	res = validate_data(itewise_balance_qty)
+	return res
+
+def validate_data(itewise_balance_qty):
+	res = []
+	for key, data in iteritems(itewise_balance_qty):
+		row = get_incorrect_data(data)
+		if row:
+			res.append(row)
+			res.append({})
+
+	return res
+
+def get_incorrect_data(data):
+	balance_qty = 0.0
+	for row in data:
+		balance_qty += row.actual_qty
+		if row.voucher_type == "Stock Reconciliation" and not row.batch_no:
+			balance_qty = flt(row.qty_after_transaction)
+
+		row.expected_balance_qty = balance_qty
+		if abs(flt(row.expected_balance_qty) - flt(row.qty_after_transaction)) > 0.5:
+			row.differnce = abs(flt(row.expected_balance_qty) - flt(row.qty_after_transaction))
+			return row
+
+def get_stock_ledger_entries(report_filters):
+	filters = {}
+	fields = ['name', 'voucher_type', 'voucher_no', 'item_code', 'actual_qty',
+		'posting_date', 'posting_time', 'company', 'warehouse', 'qty_after_transaction', 'batch_no']
+
+	for field in ['warehouse', 'item_code', 'company']:
+		if report_filters.get(field):
+			filters[field] = report_filters.get(field)
+
+	return frappe.get_all('Stock Ledger Entry', fields = fields, filters = filters,
+		order_by = 'timestamp(posting_date, posting_time) asc, creation asc')
+
+def get_columns():
+	return [{
+		'label': _('Id'),
+		'fieldtype': 'Link',
+		'fieldname': 'name',
+		'options': 'Stock Ledger Entry',
+		'width': 120
+	}, {
+		'label': _('Posting Date'),
+		'fieldtype': 'Date',
+		'fieldname': 'posting_date',
+		'width': 110
+	}, {
+		'label': _('Voucher Type'),
+		'fieldtype': 'Link',
+		'fieldname': 'voucher_type',
+		'options': 'DocType',
+		'width': 120
+	}, {
+		'label': _('Voucher No'),
+		'fieldtype': 'Dynamic Link',
+		'fieldname': 'voucher_no',
+		'options': 'voucher_type',
+		'width': 120
+	}, {
+		'label': _('Item Code'),
+		'fieldtype': 'Link',
+		'fieldname': 'item_code',
+		'options': 'Item',
+		'width': 120
+	}, {
+		'label': _('Warehouse'),
+		'fieldtype': 'Link',
+		'fieldname': 'warehouse',
+		'options': 'Warehouse',
+		'width': 120
+	}, {
+		'label': _('Expected Balance Qty'),
+		'fieldtype': 'Float',
+		'fieldname': 'expected_balance_qty',
+		'width': 170
+	}, {
+		'label': _('Actual Balance Qty'),
+		'fieldtype': 'Float',
+		'fieldname': 'qty_after_transaction',
+		'width': 150
+	}, {
+		'label': _('Difference'),
+		'fieldtype': 'Float',
+		'fieldname': 'differnce',
+		'width': 110
+	}]
\ No newline at end of file
diff --git a/erpnext/stock/report/incorrect_serial_no_valuation/__init__.py b/erpnext/stock/report/incorrect_serial_no_valuation/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/stock/report/incorrect_serial_no_valuation/__init__.py
diff --git a/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.js b/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.js
new file mode 100644
index 0000000..c62d480
--- /dev/null
+++ b/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.js
@@ -0,0 +1,35 @@
+// Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+/* eslint-disable */
+
+frappe.query_reports["Incorrect Serial No Valuation"] = {
+	"filters": [
+		{
+			label: __('Item Code'),
+			fieldtype: 'Link',
+			fieldname: 'item_code',
+			options: 'Item',
+			get_query: function() {
+				return {
+					filters: {
+						'has_serial_no': 1
+					}
+				}
+			}
+		},
+		{
+			label: __('From Date'),
+			fieldtype: 'Date',
+			fieldname: 'from_date',
+			reqd: 1,
+			default: frappe.defaults.get_user_default("year_start_date")
+		},
+		{
+			label: __('To Date'),
+			fieldtype: 'Date',
+			fieldname: 'to_date',
+			reqd: 1,
+			default: frappe.defaults.get_user_default("year_end_date")
+		}
+	]
+};
diff --git a/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.json b/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.json
new file mode 100644
index 0000000..cc384a5
--- /dev/null
+++ b/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.json
@@ -0,0 +1,36 @@
+{
+ "add_total_row": 0,
+ "columns": [],
+ "creation": "2021-05-13 13:07:00.767845",
+ "disable_prepared_report": 0,
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "json": "{}",
+ "modified": "2021-05-13 13:07:00.767845",
+ "modified_by": "Administrator",
+ "module": "Stock",
+ "name": "Incorrect Serial No Valuation",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Stock Ledger Entry",
+ "report_name": "Incorrect Serial No Valuation",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "Stock User"
+  },
+  {
+   "role": "Accounts Manager"
+  },
+  {
+   "role": "Accounts User"
+  },
+  {
+   "role": "Stock Manager"
+  }
+ ]
+}
\ No newline at end of file
diff --git a/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.py b/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.py
new file mode 100644
index 0000000..e54cf4c
--- /dev/null
+++ b/erpnext/stock/report/incorrect_serial_no_valuation/incorrect_serial_no_valuation.py
@@ -0,0 +1,148 @@
+# Copyright (c) 2013, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+import frappe
+import copy
+from frappe import _
+from six import iteritems
+from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
+
+def execute(filters=None):
+	columns, data = [], []
+	columns = get_columns()
+	data = get_data(filters)
+	return columns, data
+
+def get_data(filters):
+	data = get_stock_ledger_entries(filters)
+	serial_nos_data = prepare_serial_nos(data)
+	data = get_incorrect_serial_nos(serial_nos_data)
+
+	return data
+
+def prepare_serial_nos(data):
+	serial_no_wise_data = {}
+	for row in data:
+		if not row.serial_nos:
+			continue
+
+		for serial_no in get_serial_nos(row.serial_nos):
+			sle = copy.deepcopy(row)
+			sle.serial_no = serial_no
+			sle.qty = 1 if sle.actual_qty > 0 else -1
+			sle.valuation_rate = sle.valuation_rate if sle.actual_qty > 0 else sle.valuation_rate * -1
+			serial_no_wise_data.setdefault(serial_no, []).append(sle)
+
+	return serial_no_wise_data
+
+def get_incorrect_serial_nos(serial_nos_data):
+	result = []
+
+	total_value = frappe._dict({'qty': 0, 'valuation_rate': 0, 'serial_no': frappe.bold(_('Balance'))})
+
+	for serial_no, data in iteritems(serial_nos_data):
+		total_dict = frappe._dict({'qty': 0, 'valuation_rate': 0, 'serial_no': frappe.bold(_('Total'))})
+
+		if check_incorrect_serial_data(data, total_dict):
+			result.extend(data)
+
+			total_value.qty += total_dict.qty
+			total_value.valuation_rate += total_dict.valuation_rate
+
+			result.append(total_dict)
+			result.append({})
+
+	result.append(total_value)
+
+	return result
+
+def check_incorrect_serial_data(data, total_dict):
+	incorrect_data = False
+	for row in data:
+		total_dict.qty += row.qty
+		total_dict.valuation_rate += row.valuation_rate
+
+		if ((total_dict.qty == 0 and abs(total_dict.valuation_rate) > 0) or total_dict.qty < 0):
+			incorrect_data = True
+
+	return incorrect_data
+
+def get_stock_ledger_entries(report_filters):
+	fields = ['name', 'voucher_type', 'voucher_no', 'item_code', 'serial_no as serial_nos', 'actual_qty',
+		'posting_date', 'posting_time', 'company', 'warehouse', '(stock_value_difference / actual_qty) as valuation_rate']
+
+	filters = {'serial_no': ("is", "set")}
+
+	if report_filters.get('item_code'):
+		filters['item_code'] = report_filters.get('item_code')
+
+	if report_filters.get('from_date') and report_filters.get('to_date'):
+		filters['posting_date'] = ('between', [report_filters.get('from_date'), report_filters.get('to_date')])
+
+	return frappe.get_all('Stock Ledger Entry', fields = fields, filters = filters,
+		order_by = 'timestamp(posting_date, posting_time) asc, creation asc')
+
+def get_columns():
+	return [{
+		'label': _('Company'),
+		'fieldtype': 'Link',
+		'fieldname': 'company',
+		'options': 'Company',
+		'width': 120
+	}, {
+		'label': _('Id'),
+		'fieldtype': 'Link',
+		'fieldname': 'name',
+		'options': 'Stock Ledger Entry',
+		'width': 120
+	}, {
+		'label': _('Posting Date'),
+		'fieldtype': 'Date',
+		'fieldname': 'posting_date',
+		'width': 90
+	}, {
+		'label': _('Posting Time'),
+		'fieldtype': 'Time',
+		'fieldname': 'posting_time',
+		'width': 90
+	}, {
+		'label': _('Voucher Type'),
+		'fieldtype': 'Link',
+		'fieldname': 'voucher_type',
+		'options': 'DocType',
+		'width': 100
+	}, {
+		'label': _('Voucher No'),
+		'fieldtype': 'Dynamic Link',
+		'fieldname': 'voucher_no',
+		'options': 'voucher_type',
+		'width': 110
+	}, {
+		'label': _('Item Code'),
+		'fieldtype': 'Link',
+		'fieldname': 'item_code',
+		'options': 'Item',
+		'width': 120
+	}, {
+		'label': _('Warehouse'),
+		'fieldtype': 'Link',
+		'fieldname': 'warehouse',
+		'options': 'Warehouse',
+		'width': 120
+	}, {
+		'label': _('Serial No'),
+		'fieldtype': 'Link',
+		'fieldname': 'serial_no',
+		'options': 'Serial No',
+		'width': 100
+	}, {
+		'label': _('Qty'),
+		'fieldtype': 'Float',
+		'fieldname': 'qty',
+		'width': 80
+	}, {
+		'label': _('Valuation Rate (In / Out)'),
+		'fieldtype': 'Currency',
+		'fieldname': 'valuation_rate',
+		'width': 110
+	}]
\ No newline at end of file
diff --git a/erpnext/stock/report/incorrect_stock_value_report/__init__.py b/erpnext/stock/report/incorrect_stock_value_report/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/erpnext/stock/report/incorrect_stock_value_report/__init__.py
diff --git a/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.js b/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.js
new file mode 100644
index 0000000..ff42480
--- /dev/null
+++ b/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.js
@@ -0,0 +1,36 @@
+// Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
+// For license information, please see license.txt
+/* eslint-disable */
+
+frappe.query_reports["Incorrect Stock Value Report"] = {
+	"filters": [
+		{
+			"label": __("Company"),
+			"fieldname": "company",
+			"fieldtype": "Link",
+			"options": "Company",
+			"reqd": 1,
+			"default": frappe.defaults.get_user_default("Company")
+		},
+		{
+			"label": __("Account"),
+			"fieldname": "account",
+			"fieldtype": "Link",
+			"options": "Account",
+			get_query: function() {
+				var company = frappe.query_report.get_filter_value('company');
+				return {
+					filters: {
+						"account_type": "Stock",
+						"company": company
+					}
+				}
+			}
+		},
+		{
+			"label": __("From Date"),
+			"fieldname": "from_date",
+			"fieldtype": "Date"
+		}
+	]
+};
diff --git a/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.json b/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.json
new file mode 100644
index 0000000..a7e9f20
--- /dev/null
+++ b/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.json
@@ -0,0 +1,29 @@
+{
+ "add_total_row": 0,
+ "columns": [],
+ "creation": "2021-06-22 15:35:05.148177",
+ "disable_prepared_report": 0,
+ "disabled": 0,
+ "docstatus": 0,
+ "doctype": "Report",
+ "filters": [],
+ "idx": 0,
+ "is_standard": "Yes",
+ "modified": "2021-06-22 15:35:05.148177",
+ "modified_by": "Administrator",
+ "module": "Stock",
+ "name": "Incorrect Stock Value Report",
+ "owner": "Administrator",
+ "prepared_report": 0,
+ "ref_doctype": "Stock Ledger Entry",
+ "report_name": "Incorrect Stock Value Report",
+ "report_type": "Script Report",
+ "roles": [
+  {
+   "role": "Stock User"
+  },
+  {
+   "role": "Accounts Manager"
+  }
+ ]
+}
\ No newline at end of file
diff --git a/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.py b/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.py
new file mode 100644
index 0000000..a724387
--- /dev/null
+++ b/erpnext/stock/report/incorrect_stock_value_report/incorrect_stock_value_report.py
@@ -0,0 +1,141 @@
+# Copyright (c) 2013, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+from __future__ import unicode_literals
+import frappe
+import erpnext
+from frappe import _
+from six import iteritems
+from frappe.utils import add_days, today, getdate
+from erpnext.stock.utils import get_stock_value_on
+from erpnext.accounts.utils import get_stock_and_account_balance
+
+def execute(filters=None):
+	if not erpnext.is_perpetual_inventory_enabled(filters.company):
+		frappe.throw(_("Perpetual inventory required for the company {0} to view this report.")
+			.format(filters.company))
+
+	data = get_data(filters)
+	columns = get_columns(filters)
+
+	return columns, data
+
+def get_unsync_date(filters):
+	date = filters.from_date
+	if not date:
+		date = frappe.db.sql(""" SELECT min(posting_date) from `tabStock Ledger Entry`""")
+		date = date[0][0]
+
+	if not date:
+		return
+
+	while getdate(date) < getdate(today()):
+		account_bal, stock_bal, warehouse_list = get_stock_and_account_balance(posting_date=date,
+			company=filters.company, account = filters.account)
+
+		if abs(account_bal - stock_bal) > 0.1:
+			return date
+
+		date = add_days(date, 1)
+
+def get_data(report_filters):
+	from_date = get_unsync_date(report_filters)
+
+	if not from_date:
+		return []
+
+	result = []
+
+	voucher_wise_dict = {}
+	data = frappe.db.sql('''
+			SELECT
+				name, posting_date, posting_time, voucher_type, voucher_no,
+				stock_value_difference, stock_value, warehouse, item_code
+			FROM
+				`tabStock Ledger Entry`
+			WHERE
+				posting_date
+				= %s and company = %s
+				and is_cancelled = 0
+			ORDER BY timestamp(posting_date, posting_time) asc, creation asc
+		''', (from_date, report_filters.company), as_dict=1)
+
+	for d in data:
+		voucher_wise_dict.setdefault((d.item_code, d.warehouse), []).append(d)
+
+	closing_date = add_days(from_date, -1)
+	for key, stock_data in iteritems(voucher_wise_dict):
+		prev_stock_value = get_stock_value_on(posting_date = closing_date, item_code=key[0], warehouse =key[1])
+		for data in stock_data:
+			expected_stock_value = prev_stock_value + data.stock_value_difference
+			if abs(data.stock_value - expected_stock_value) > 0.1:
+				data.difference_value = abs(data.stock_value - expected_stock_value)
+				data.expected_stock_value = expected_stock_value
+				result.append(data)
+
+	return result
+
+def get_columns(filters):
+	return [
+		{
+			"label": _("Stock Ledger ID"),
+			"fieldname": "name",
+			"fieldtype": "Link",
+			"options": "Stock Ledger Entry",
+			"width": "80"
+		},
+		{
+			"label": _("Posting Date"),
+			"fieldname": "posting_date",
+			"fieldtype": "Date"
+		},
+		{
+			"label": _("Posting Time"),
+			"fieldname": "posting_time",
+			"fieldtype": "Time"
+		},
+		{
+			"label": _("Voucher Type"),
+			"fieldname": "voucher_type",
+			"width": "110"
+		},
+		{
+			"label": _("Voucher No"),
+			"fieldname": "voucher_no",
+			"fieldtype": "Dynamic Link",
+			"options": "voucher_type",
+			"width": "110"
+		},
+		{
+			"label": _("Item Code"),
+			"fieldname": "item_code",
+			"fieldtype": "Link",
+			"options": "Item",
+			"width": "110"
+		},
+		{
+			"label": _("Warehouse"),
+			"fieldname": "warehouse",
+			"fieldtype": "Link",
+			"options": "Warehouse",
+			"width": "110"
+		},
+		{
+			"label": _("Expected Stock Value"),
+			"fieldname": "expected_stock_value",
+			"fieldtype": "Currency",
+			"width": "150"
+		},
+		{
+			"label": _("Stock Value"),
+			"fieldname": "stock_value",
+			"fieldtype": "Currency",
+			"width": "120"
+		},
+		{
+			"label": _("Difference Value"),
+			"fieldname": "difference_value",
+			"fieldtype": "Currency",
+			"width": "150"
+		}
+	]
\ No newline at end of file
diff --git a/erpnext/stock/workspace/stock/stock.json b/erpnext/stock/workspace/stock/stock.json
index 3221dc4..529ce8e 100644
--- a/erpnext/stock/workspace/stock/stock.json
+++ b/erpnext/stock/workspace/stock/stock.json
@@ -15,6 +15,7 @@
  "hide_custom": 0,
  "icon": "stock",
  "idx": 0,
+ "is_default": 0,
  "is_standard": 1,
  "label": "Stock",
  "links": [
@@ -653,9 +654,44 @@
    "link_type": "Report",
    "onboard": 0,
    "type": "Link"
+  },
+  {
+   "hidden": 0,
+   "is_query_report": 0,
+   "label": "Incorrect Data Report",
+   "link_type": "DocType",
+   "onboard": 0,
+   "type": "Card Break"
+  },
+  {
+   "hidden": 0,
+   "is_query_report": 0,
+   "label": "Incorrect Serial No Qty and Valuation",
+   "link_to": "Incorrect Serial No Valuation",
+   "link_type": "Report",
+   "onboard": 0,
+   "type": "Link"
+  },
+  {
+   "hidden": 0,
+   "is_query_report": 0,
+   "label": "Incorrect Balance Qty After Transaction",
+   "link_to": "Incorrect Balance Qty After Transaction",
+   "link_type": "Report",
+   "onboard": 0,
+   "type": "Link"
+  },
+  {
+   "hidden": 0,
+   "is_query_report": 0,
+   "label": "Stock and Account Value Comparison",
+   "link_to": "Stock and Account Value Comparison",
+   "link_type": "Report",
+   "onboard": 0,
+   "type": "Link"
   }
  ],
- "modified": "2020-12-01 13:38:36.282890",
+ "modified": "2021-05-13 13:10:24.914983",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Stock",
diff --git a/erpnext/support/doctype/issue/issue.json b/erpnext/support/doctype/issue/issue.json
index bc29821..14712f8 100644
--- a/erpnext/support/doctype/issue/issue.json
+++ b/erpnext/support/doctype/issue/issue.json
@@ -166,7 +166,7 @@
    "options": "Service Level Agreement"
   },
   {
-   "depends_on": "eval: doc.status != 'Replied';",
+   "depends_on": "eval: doc.status != 'Replied' && doc.service_level_agreement;",
    "fieldname": "response_by",
    "fieldtype": "Datetime",
    "label": "Response By",
@@ -180,7 +180,7 @@
    "read_only": 1
   },
   {
-   "depends_on": "eval: doc.status != 'Replied';",
+   "depends_on": "eval: doc.status != 'Replied' && doc.service_level_agreement;",
    "fieldname": "resolution_by",
    "fieldtype": "Datetime",
    "label": "Resolution By",
@@ -410,7 +410,7 @@
  "icon": "fa fa-ticket",
  "idx": 7,
  "links": [],
- "modified": "2021-05-26 10:49:07.574769",
+ "modified": "2021-06-10 03:22:27.098898",
  "modified_by": "Administrator",
  "module": "Support",
  "name": "Issue",
diff --git a/erpnext/support/doctype/issue/issue.py b/erpnext/support/doctype/issue/issue.py
index dd6d647..e092b07 100644
--- a/erpnext/support/doctype/issue/issue.py
+++ b/erpnext/support/doctype/issue/issue.py
@@ -26,6 +26,9 @@
 
 		self.set_lead_contact(self.raised_by)
 
+		if not self.service_level_agreement:
+			self.reset_sla_fields()
+
 	def on_update(self):
 		# Add a communication in the issue timeline
 		if self.flags.create_communication and self.via_customer_portal:
@@ -51,6 +54,106 @@
 				self.company = frappe.db.get_value("Lead", self.lead, "company") or \
 					frappe.db.get_default("Company")
 
+	def reset_sla_fields(self):
+		self.agreement_status = ""
+		self.response_by = ""
+		self.resolution_by = ""
+		self.response_by_variance = 0
+		self.resolution_by_variance = 0
+
+	def update_status(self):
+		status = frappe.db.get_value("Issue", self.name, "status")
+		if self.status != "Open" and status == "Open" and not self.first_responded_on:
+			self.first_responded_on = frappe.flags.current_time or now_datetime()
+
+		if self.status in ["Closed", "Resolved"] and status not in ["Resolved", "Closed"]:
+			self.resolution_date = frappe.flags.current_time or now_datetime()
+			if frappe.db.get_value("Issue", self.name, "agreement_status") == "Ongoing":
+				set_service_level_agreement_variance(issue=self.name)
+				self.update_agreement_status()
+			set_resolution_time(issue=self)
+			set_user_resolution_time(issue=self)
+
+		if self.status == "Open" and status != "Open":
+			# if no date, it should be set as None and not a blank string "", as per mysql strict config
+			self.resolution_date = None
+			self.reset_issue_metrics()
+			# enable SLA and variance on Reopen
+			self.agreement_status = "Ongoing"
+			set_service_level_agreement_variance(issue=self.name)
+
+		self.handle_hold_time(status)
+
+	def handle_hold_time(self, status):
+		if self.service_level_agreement:
+			# set response and resolution variance as None as the issue is on Hold
+			pause_sla_on = frappe.db.get_all("Pause SLA On Status", fields=["status"],
+				filters={"parent": self.service_level_agreement})
+			hold_statuses = [entry.status for entry in pause_sla_on]
+			update_values = {}
+
+			if hold_statuses:
+				if self.status in hold_statuses and status not in hold_statuses:
+					update_values['on_hold_since'] = frappe.flags.current_time or now_datetime()
+					if not self.first_responded_on:
+						update_values['response_by'] = None
+						update_values['response_by_variance'] = 0
+					update_values['resolution_by'] = None
+					update_values['resolution_by_variance'] = 0
+
+				# calculate hold time when status is changed from any hold status to any non-hold status
+				if self.status not in hold_statuses and status in hold_statuses:
+					hold_time = self.total_hold_time if self.total_hold_time else 0
+					now_time = frappe.flags.current_time or now_datetime()
+					last_hold_time = 0
+					if self.on_hold_since:
+						# last_hold_time will be added to the sla variables
+						last_hold_time = time_diff_in_seconds(now_time, self.on_hold_since)
+						update_values['total_hold_time'] = hold_time + last_hold_time
+
+					# re-calculate SLA variables after issue changes from any hold status to any non-hold status
+					# add hold time to SLA variables
+					start_date_time = get_datetime(self.service_level_agreement_creation)
+					priority = get_priority(self)
+					now_time = frappe.flags.current_time or now_datetime()
+
+					if not self.first_responded_on:
+						response_by = get_expected_time_for(parameter="response", service_level=priority, start_date_time=start_date_time)
+						response_by = add_to_date(response_by, seconds=round(last_hold_time))
+						response_by_variance = round(time_diff_in_seconds(response_by, now_time))
+						update_values['response_by'] = response_by
+						update_values['response_by_variance'] = response_by_variance + last_hold_time
+
+					resolution_by = get_expected_time_for(parameter="resolution", service_level=priority, start_date_time=start_date_time)
+					resolution_by = add_to_date(resolution_by, seconds=round(last_hold_time))
+					resolution_by_variance = round(time_diff_in_seconds(resolution_by, now_time))
+					update_values['resolution_by'] = resolution_by
+					update_values['resolution_by_variance'] = resolution_by_variance + last_hold_time
+					update_values['on_hold_since'] = None
+
+				self.db_set(update_values)
+
+	def update_agreement_status(self):
+		if self.service_level_agreement and self.agreement_status == "Ongoing":
+			if cint(frappe.db.get_value("Issue", self.name, "response_by_variance")) < 0 or \
+				cint(frappe.db.get_value("Issue", self.name, "resolution_by_variance")) < 0:
+
+				self.agreement_status = "Failed"
+			else:
+				self.agreement_status = "Fulfilled"
+
+	def update_agreement_status_on_custom_status(self):
+		"""
+			Update Agreement Fulfilled status using Custom Scripts for Custom Issue Status
+		"""
+		if not self.first_responded_on: # first_responded_on set when first reply is sent to customer
+			self.response_by_variance = round(time_diff_in_seconds(self.response_by, now_datetime()), 2)
+
+		if not self.resolution_date: # resolution_date set when issue has been closed
+			self.resolution_by_variance = round(time_diff_in_seconds(self.resolution_by, now_datetime()), 2)
+
+		self.agreement_status = "Fulfilled" if self.response_by_variance > 0 and self.resolution_by_variance > 0 else "Failed"
+
 	def create_communication(self):
 		communication = frappe.new_doc("Communication")
 		communication.update({
@@ -215,4 +318,4 @@
 def get_holidays(holiday_list_name):
 	holiday_list = frappe.get_cached_doc("Holiday List", holiday_list_name)
 	holidays = [holiday.holiday_date for holiday in holiday_list.holidays]
-	return holidays
\ No newline at end of file
+	return holidays