diff --git a/erpnext/accounts/doctype/pricing_rule/pricing_rule.json b/erpnext/accounts/doctype/pricing_rule/pricing_rule.json
index 3377164..428989a 100644
--- a/erpnext/accounts/doctype/pricing_rule/pricing_rule.json
+++ b/erpnext/accounts/doctype/pricing_rule/pricing_rule.json
@@ -44,6 +44,14 @@
   "column_break_21",
   "min_amt",
   "max_amt",
+  "product_discount_scheme_section",
+  "same_item",
+  "free_item",
+  "free_qty",
+  "free_item_rate",
+  "column_break_42",
+  "free_item_uom",
+  "is_recursive",
   "section_break_23",
   "valid_from",
   "valid_upto",
@@ -62,13 +70,6 @@
   "discount_amount",
   "discount_percentage",
   "for_price_list",
-  "product_discount_scheme_section",
-  "same_item",
-  "free_item",
-  "free_qty",
-  "column_break_51",
-  "free_item_uom",
-  "free_item_rate",
   "section_break_13",
   "threshold_percentage",
   "priority",
@@ -459,10 +460,6 @@
    "label": "Qty"
   },
   {
-   "fieldname": "column_break_51",
-   "fieldtype": "Column Break"
-  },
-  {
    "fieldname": "free_item_uom",
    "fieldtype": "Link",
    "label": "UOM",
@@ -552,19 +549,33 @@
    "fieldname": "promotional_scheme",
    "fieldtype": "Link",
    "label": "Promotional Scheme",
-   "options": "Promotional Scheme"
+   "no_copy": 1,
+   "options": "Promotional Scheme",
+   "print_hide": 1,
+   "read_only": 1
   },
   {
    "description": "Simple Python Expression, Example: territory != 'All Territories'",
    "fieldname": "condition",
    "fieldtype": "Code",
    "label": "Condition"
+  },
+  {
+   "fieldname": "column_break_42",
+   "fieldtype": "Column Break"
+  },
+  {
+   "default": "0",
+   "description": "Discounts to be applied in sequential ranges like buy 1 get 1, buy 2 get 2, buy 3 get 3 and so on",
+   "fieldname": "is_recursive",
+   "fieldtype": "Check",
+   "label": "Is Recursive"
   }
  ],
  "icon": "fa fa-gift",
  "idx": 1,
  "links": [],
- "modified": "2021-03-01 23:18:38.717613",
+ "modified": "2021-03-06 22:01:24.840422",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Pricing Rule",
diff --git a/erpnext/accounts/doctype/pricing_rule/pricing_rule.py b/erpnext/accounts/doctype/pricing_rule/pricing_rule.py
index f0b4e29..aedf1c6 100644
--- a/erpnext/accounts/doctype/pricing_rule/pricing_rule.py
+++ b/erpnext/accounts/doctype/pricing_rule/pricing_rule.py
@@ -237,6 +237,7 @@
 		"doctype": args.doctype,
 		"has_margin": False,
 		"name": args.name,
+		"free_item_data": [],
 		"parent": args.parent,
 		"parenttype": args.parenttype,
 		"child_docname": args.get('child_docname')
diff --git a/erpnext/accounts/doctype/pricing_rule/utils.py b/erpnext/accounts/doctype/pricing_rule/utils.py
index d163335..c676abd 100644
--- a/erpnext/accounts/doctype/pricing_rule/utils.py
+++ b/erpnext/accounts/doctype/pricing_rule/utils.py
@@ -367,7 +367,7 @@
 
 	if items and doc.get("items"):
 		for row in doc.get('items'):
-			if row.get(apply_on) not in items: continue
+			if (row.get(apply_on) or args.get(apply_on)) not in items: continue
 
 			if pr_doc.mixed_conditions:
 				amt = args.get('qty') * args.get("price_list_rate")
@@ -479,7 +479,7 @@
 
 				doc.calculate_taxes_and_totals()
 			elif d.price_or_product_discount == 'Product':
-				item_details = frappe._dict({'parenttype': doc.doctype})
+				item_details = frappe._dict({'parenttype': doc.doctype, 'free_item_data': []})
 				get_product_discount_rule(d, item_details, doc=doc)
 				apply_pricing_rule_for_free_items(doc, item_details.free_item_data)
 				doc.set_missing_values()
@@ -508,9 +508,16 @@
 		frappe.throw(_("Free item not set in the pricing rule {0}")
 			.format(get_link_to_form("Pricing Rule", pricing_rule.name)))
 
-	item_details.free_item_data = {
+	qty = pricing_rule.free_qty or 1
+	if pricing_rule.is_recursive:
+		transaction_qty = args.get('qty') if args else doc.total_qty
+		if transaction_qty:
+			qty = flt(transaction_qty) * qty
+
+	free_item_data_args = {
 		'item_code': free_item,
-		'qty': pricing_rule.free_qty or 1,
+		'qty': qty,
+		'pricing_rules': pricing_rule.name,
 		'rate': pricing_rule.free_item_rate or 0,
 		'price_list_rate': pricing_rule.free_item_rate or 0,
 		'is_free_item': 1
@@ -519,24 +526,26 @@
 	item_data = frappe.get_cached_value('Item', free_item, ['item_name',
 		'description', 'stock_uom'], as_dict=1)
 
-	item_details.free_item_data.update(item_data)
-	item_details.free_item_data['uom'] = pricing_rule.free_item_uom or item_data.stock_uom
-	item_details.free_item_data['conversion_factor'] = get_conversion_factor(free_item,
-		item_details.free_item_data['uom']).get("conversion_factor", 1)
+	free_item_data_args.update(item_data)
+	free_item_data_args['uom'] = pricing_rule.free_item_uom or item_data.stock_uom
+	free_item_data_args['conversion_factor'] = get_conversion_factor(free_item,
+		free_item_data_args['uom']).get("conversion_factor", 1)
 
 	if item_details.get("parenttype") == 'Purchase Order':
-		item_details.free_item_data['schedule_date'] = doc.schedule_date if doc else today()
+		free_item_data_args['schedule_date'] = doc.schedule_date if doc else today()
 
 	if item_details.get("parenttype") == 'Sales Order':
-		item_details.free_item_data['delivery_date'] = doc.delivery_date if doc else today()
+		free_item_data_args['delivery_date'] = doc.delivery_date if doc else today()
+
+	item_details.free_item_data.append(free_item_data_args)
 
 def apply_pricing_rule_for_free_items(doc, pricing_rule_args, set_missing_values=False):
-	if pricing_rule_args.get('item_code'):
-		items = [d.item_code for d in doc.items
-			if d.item_code == (pricing_rule_args.get("item_code")) and d.is_free_item]
+	if pricing_rule_args:
+		items = tuple([(d.item_code, d.pricing_rules) for d in doc.items if d.is_free_item])
 
-		if not items:
-			doc.append('items', pricing_rule_args)
+		for args in pricing_rule_args:
+			if not items or (args.get('item_code'), args.get('pricing_rules')) not in items:
+				doc.append('items', args)
 
 def get_pricing_rule_items(pr_doc):
 	apply_on_data = []
diff --git a/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py b/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py
index 89f7238..523e9ee 100644
--- a/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py
+++ b/erpnext/accounts/doctype/promotional_scheme/promotional_scheme.py
@@ -12,16 +12,16 @@
 pricing_rule_fields = ['apply_on', 'mixed_conditions', 'is_cumulative', 'other_item_code', 'other_item_group'
 	'apply_rule_on_other', 'other_brand', 'selling', 'buying', 'applicable_for', 'valid_from',
 	'valid_upto', 'customer', 'customer_group', 'territory', 'sales_partner', 'campaign', 'supplier',
-	'supplier_group', 'company', 'currency']
+	'supplier_group', 'company', 'currency', 'apply_multiple_pricing_rules']
 
 other_fields = ['min_qty', 'max_qty', 'min_amt',
 	'max_amt', 'priority','warehouse', 'threshold_percentage', 'rule_description']
 
 price_discount_fields = ['rate_or_discount', 'apply_discount_on', 'apply_discount_on_rate',
-	'rate', 'discount_amount', 'discount_percentage', 'validate_applied_rule']
+	'rate', 'discount_amount', 'discount_percentage', 'validate_applied_rule', 'apply_multiple_pricing_rules']
 
 product_discount_fields = ['free_item', 'free_qty', 'free_item_uom',
-	'free_item_rate', 'same_item']
+	'free_item_rate', 'same_item', 'is_recursive', 'apply_multiple_pricing_rules']
 
 class PromotionalScheme(Document):
 	def validate(self):
diff --git a/erpnext/accounts/doctype/promotional_scheme_price_discount/promotional_scheme_price_discount.json b/erpnext/accounts/doctype/promotional_scheme_price_discount/promotional_scheme_price_discount.json
index 224b8de..795fb1c 100644
--- a/erpnext/accounts/doctype/promotional_scheme_price_discount/promotional_scheme_price_discount.json
+++ b/erpnext/accounts/doctype/promotional_scheme_price_discount/promotional_scheme_price_discount.json
@@ -1,792 +1,181 @@
 {
- "allow_copy": 0,
- "allow_events_in_timeline": 0,
- "allow_guest_to_view": 0,
- "allow_import": 0,
- "allow_rename": 0,
- "beta": 0,
+ "actions": [],
  "creation": "2019-03-24 14:48:59.649168",
- "custom": 0,
- "docstatus": 0,
  "doctype": "DocType",
- "document_type": "",
  "editable_grid": 1,
  "engine": "InnoDB",
+ "field_order": [
+  "disable",
+  "apply_multiple_pricing_rules",
+  "column_break_2",
+  "rule_description",
+  "section_break_2",
+  "min_qty",
+  "max_qty",
+  "column_break_3",
+  "min_amount",
+  "max_amount",
+  "section_break_6",
+  "rate_or_discount",
+  "column_break_10",
+  "rate",
+  "discount_amount",
+  "discount_percentage",
+  "section_break_11",
+  "warehouse",
+  "threshold_percentage",
+  "validate_applied_rule",
+  "column_break_14",
+  "priority",
+  "apply_discount_on_rate"
+ ],
  "fields": [
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
+   "default": "0",
    "fieldname": "disable",
    "fieldtype": "Check",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Disable",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Disable"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "column_break_2",
-   "fieldtype": "Column Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 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,
-   "translatable": 0,
-   "unique": 0
+   "fieldtype": "Column Break"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "rule_description",
    "fieldtype": "Small Text",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
    "label": "Rule Description",
-   "length": 0,
    "no_copy": 1,
-   "permlevel": 0,
-   "precision": "",
-   "print_hide": 0,
-   "print_hide_if_no_value": 0,
-   "read_only": 0,
-   "remember_last_selected_value": 0,
-   "report_hide": 0,
-   "reqd": 1,
-   "search_index": 0,
-   "set_only_once": 0,
-   "translatable": 0,
-   "unique": 0
+   "reqd": 1
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "section_break_2",
-   "fieldtype": "Section Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 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,
-   "translatable": 0,
-   "unique": 0
+   "fieldtype": "Section Break"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
    "columns": 1,
    "default": "0",
    "fieldname": "min_qty",
    "fieldtype": "Float",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
    "in_list_view": 1,
-   "in_standard_filter": 0,
-   "label": "Min Qty",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Min Qty"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
    "columns": 1,
    "default": "0",
    "fieldname": "max_qty",
    "fieldtype": "Float",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
    "in_list_view": 1,
-   "in_standard_filter": 0,
-   "label": "Max Qty",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Max Qty"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "column_break_3",
-   "fieldtype": "Column Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 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,
-   "translatable": 0,
-   "unique": 0
+   "fieldtype": "Column Break"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "default": "0",
    "fieldname": "min_amount",
    "fieldtype": "Currency",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
    "in_list_view": 1,
-   "in_standard_filter": 0,
-   "label": "Min Amount",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Min Amount"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "default": "0",
-   "depends_on": "",
    "fieldname": "max_amount",
    "fieldtype": "Currency",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
    "in_list_view": 1,
-   "in_standard_filter": 0,
-   "label": "Max Amount",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Max Amount"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
-   "depends_on": "",
    "fieldname": "section_break_6",
-   "fieldtype": "Section Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "fieldtype": "Section Break"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "default": "Discount Percentage",
-   "depends_on": "",
    "fieldname": "rate_or_discount",
    "fieldtype": "Select",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
    "in_list_view": 1,
-   "in_standard_filter": 0,
    "label": "Discount Type",
-   "length": 0,
-   "no_copy": 0,
-   "options": "\nRate\nDiscount Percentage\nDiscount Amount",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "options": "\nRate\nDiscount Percentage\nDiscount Amount"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
-   "depends_on": "",
    "fieldname": "column_break_10",
-   "fieldtype": "Column Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 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,
-   "translatable": 0,
-   "unique": 0
+   "fieldtype": "Column Break"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
    "columns": 2,
    "depends_on": "eval:doc.rate_or_discount==\"Rate\"",
    "fieldname": "rate",
    "fieldtype": "Currency",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
    "in_list_view": 1,
-   "in_standard_filter": 0,
-   "label": "Rate",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Rate"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "depends_on": "eval:doc.rate_or_discount==\"Discount Amount\"",
    "fieldname": "discount_amount",
    "fieldtype": "Currency",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Discount Amount",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Discount Amount"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "depends_on": "eval:doc.rate_or_discount==\"Discount Percentage\"",
    "fieldname": "discount_percentage",
    "fieldtype": "Float",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Discount Percentage",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Discount Percentage"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "section_break_11",
-   "fieldtype": "Section Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 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,
-   "translatable": 0,
-   "unique": 0
+   "fieldtype": "Section Break"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "warehouse",
    "fieldtype": "Link",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
    "label": "Warehouse",
-   "length": 0,
-   "no_copy": 0,
-   "options": "Warehouse",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "options": "Warehouse"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "threshold_percentage",
    "fieldtype": "Percent",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Threshold for Suggestion",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Threshold for Suggestion"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "default": "1",
    "fieldname": "validate_applied_rule",
    "fieldtype": "Check",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Validate Applied Rule",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Validate Applied Rule"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "column_break_14",
-   "fieldtype": "Column Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 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,
-   "translatable": 0,
-   "unique": 0
+   "fieldtype": "Column Break"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "fieldname": "priority",
    "fieldtype": "Select",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
    "label": "Priority",
-   "length": 0,
-   "no_copy": 0,
-   "options": "\n1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "options": "\n1\n2\n3\n4\n5\n6\n7\n8\n9\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
+   "default": "0",
    "depends_on": "priority",
    "fieldname": "apply_multiple_pricing_rules",
    "fieldtype": "Check",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Apply Multiple Pricing Rules",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Apply Multiple Pricing Rules"
   },
   {
-   "allow_bulk_edit": 0,
-   "allow_in_quick_entry": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
    "default": "0",
    "depends_on": "eval:in_list(['Discount Percentage', 'Discount Amount'], doc.rate_or_discount) && doc.apply_multiple_pricing_rules",
    "fieldname": "apply_discount_on_rate",
    "fieldtype": "Check",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Apply Discount on Rate",
-   "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,
-   "translatable": 0,
-   "unique": 0
+   "label": "Apply Discount on Rate"
   }
  ],
- "has_web_view": 0,
- "hide_heading": 0,
- "hide_toolbar": 0,
- "idx": 0,
- "image_view": 0,
- "in_create": 0,
- "is_submittable": 0,
- "issingle": 0,
+ "index_web_pages_for_search": 1,
  "istable": 1,
- "max_attachments": 0,
- "modified": "2019-03-24 14:48:59.649168",
+ "links": [],
+ "modified": "2021-03-07 11:56:23.424137",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Promotional Scheme Price Discount",
- "name_case": "",
  "owner": "Administrator",
  "permissions": [],
- "quick_entry": 0,
- "read_only": 0,
- "read_only_onload": 0,
- "show_name_in_global_search": 0,
  "sort_field": "modified",
- "sort_order": "DESC",
- "track_changes": 0,
- "track_seen": 0,
- "track_views": 0
+ "sort_order": "DESC"
 }
\ No newline at end of file
diff --git a/erpnext/accounts/doctype/promotional_scheme_product_discount/promotional_scheme_product_discount.json b/erpnext/accounts/doctype/promotional_scheme_product_discount/promotional_scheme_product_discount.json
index 72d53bf..3eab515 100644
--- a/erpnext/accounts/doctype/promotional_scheme_product_discount/promotional_scheme_product_discount.json
+++ b/erpnext/accounts/doctype/promotional_scheme_product_discount/promotional_scheme_product_discount.json
@@ -1,10 +1,12 @@
 {
+ "actions": [],
  "creation": "2019-03-24 14:48:59.649168",
  "doctype": "DocType",
  "editable_grid": 1,
  "engine": "InnoDB",
  "field_order": [
   "disable",
+  "apply_multiple_pricing_rules",
   "column_break_2",
   "rule_description",
   "section_break_1",
@@ -25,7 +27,7 @@
   "threshold_percentage",
   "column_break_15",
   "priority",
-  "apply_multiple_pricing_rules"
+  "is_recursive"
  ],
  "fields": [
   {
@@ -152,10 +154,19 @@
    "fieldname": "apply_multiple_pricing_rules",
    "fieldtype": "Check",
    "label": "Apply Multiple Pricing Rules"
+  },
+  {
+   "default": "0",
+   "description": "Discounts to be applied in sequential ranges like buy 1 get 1, buy 2 get 2, buy 3 get 3 and so on",
+   "fieldname": "is_recursive",
+   "fieldtype": "Check",
+   "label": "Is Recursive"
   }
  ],
+ "index_web_pages_for_search": 1,
  "istable": 1,
- "modified": "2019-07-21 00:00:56.674284",
+ "links": [],
+ "modified": "2021-03-06 21:58:18.162346",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Promotional Scheme Product Discount",
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 12a81c7..73276f3 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -26,7 +26,8 @@
 
 class AccountMissingError(frappe.ValidationError): pass
 
-force_item_fields = ("item_group", "brand", "stock_uom", "is_fixed_asset", "item_tax_rate", "pricing_rules")
+force_item_fields = ("item_group", "brand", "stock_uom", "is_fixed_asset", "item_tax_rate",
+	"pricing_rules", "weight_per_unit", "weight_uom", "total_weight")
 
 class AccountsController(TransactionBase):
 	def __init__(self, *args, **kwargs):
@@ -1394,7 +1395,7 @@
 			)
 
 	def get_new_child_item(item_row):
-		child_doctype = "Sales Order Item" if parent_doctype == "Sales Order" else "Purchase Order Item" 
+		child_doctype = "Sales Order Item" if parent_doctype == "Sales Order" else "Purchase Order Item"
 		return set_order_defaults(parent_doctype, parent_doctype_name, child_doctype, child_docname, item_row)
 
 	def validate_quantity(child_item, d):
diff --git a/erpnext/controllers/taxes_and_totals.py b/erpnext/controllers/taxes_and_totals.py
index c33e556..e329b32 100644
--- a/erpnext/controllers/taxes_and_totals.py
+++ b/erpnext/controllers/taxes_and_totals.py
@@ -113,7 +113,10 @@
 					item.rate_with_margin, item.base_rate_with_margin = self.calculate_margin(item)
 					if flt(item.rate_with_margin) > 0:
 						item.rate = flt(item.rate_with_margin * (1.0 - (item.discount_percentage / 100.0)), item.precision("rate"))
-						item.discount_amount = item.rate_with_margin - item.rate
+						if not item.discount_amount:
+							item.discount_amount = item.rate_with_margin - item.rate
+						elif not item.discount_percentage:
+							item.rate -= item.discount_amount
 					elif flt(item.price_list_rate) > 0:
 						item.discount_amount = item.price_list_rate - item.rate
 				elif flt(item.price_list_rate) > 0 and not item.discount_amount:
diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index 365851a..32d371d 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -577,7 +577,7 @@
 									var d = locals[cdt][cdn];
 									me.add_taxes_from_item_tax_template(d.item_tax_rate);
 									if (d.free_item_data) {
-										me.apply_product_discount(d.free_item_data);
+										me.apply_product_discount(d);
 									}
 								},
 								() => {
@@ -1198,7 +1198,7 @@
 
 	calculate_stock_uom_rate: function(doc, cdt, cdn) {
 		let item = frappe.get_doc(cdt, cdn);
-		item.stock_uom_rate = flt(item.rate)/flt(item.conversion_factor);	
+		item.stock_uom_rate = flt(item.rate)/flt(item.conversion_factor);
 		refresh_field("stock_uom_rate", item.name, item.parentfield);
 	},
 	service_stop_date: function(frm, cdt, cdn) {
@@ -1527,7 +1527,10 @@
 					if(k=="price_list_rate") {
 						if(flt(v) != flt(d.price_list_rate)) price_list_rate_changed = true;
 					}
-					frappe.model.set_value(d.doctype, d.name, k, v);
+
+					if (k !== 'free_item_data') {
+						frappe.model.set_value(d.doctype, d.name, k, v);
+					}
 				}
 			}
 
@@ -1539,7 +1542,7 @@
 			}
 
 			if (d.free_item_data) {
-				me.apply_product_discount(d.free_item_data);
+				me.apply_product_discount(d);
 			}
 
 			if (d.apply_rule_on_other_items) {
@@ -1573,20 +1576,31 @@
 		}
 	},
 
-	apply_product_discount: function(free_item_data) {
-		const items = this.frm.doc.items.filter(d => (d.item_code == free_item_data.item_code
-			&& d.is_free_item)) || [];
+	apply_product_discount: function(args) {
+		const items = this.frm.doc.items.filter(d => (d.is_free_item)) || [];
 
-		if (!items.length) {
-			let row_to_modify = frappe.model.add_child(this.frm.doc,
-				this.frm.doc.doctype + ' Item', 'items');
+		const exist_items = items.map(row => (row.item_code, row.pricing_rules));
 
-			for (let key in free_item_data) {
-				row_to_modify[key] = free_item_data[key];
+		args.free_item_data.forEach(pr_row => {
+			let row_to_modify = {};
+			if (!items || !in_list(exist_items, (pr_row.item_code, pr_row.pricing_rules))) {
+
+				row_to_modify = frappe.model.add_child(this.frm.doc,
+					this.frm.doc.doctype + ' Item', 'items');
+
+			} else if(items) {
+				row_to_modify = items.filter(d => (d.item_code === pr_row.item_code
+					&& d.pricing_rules === pr_row.pricing_rules))[0];
 			}
-		} if (items && items.length && free_item_data) {
-			items[0].qty = free_item_data.qty
-		}
+
+			for (let key in pr_row) {
+				row_to_modify[key] = pr_row[key];
+			}
+		});
+
+		// free_item_data is a temporary variable
+		args.free_item_data = '';
+		refresh_field('items');
 	},
 
 	apply_price_list: function(item, reset_plc_conversion) {
diff --git a/erpnext/stock/get_item_details.py b/erpnext/stock/get_item_details.py
index 873cfec..70e4c2c 100644
--- a/erpnext/stock/get_item_details.py
+++ b/erpnext/stock/get_item_details.py
@@ -314,7 +314,9 @@
 		"last_purchase_rate": item.last_purchase_rate if args.get("doctype") in ["Purchase Order"] else 0,
 		"transaction_date": args.get("transaction_date"),
 		"against_blanket_order": args.get("against_blanket_order"),
-		"bom_no": item.get("default_bom")
+		"bom_no": item.get("default_bom"),
+		"weight_per_unit": args.get("weight_per_unit") or item.get("weight_per_unit"),
+		"weight_uom": args.get("weight_uom") or item.get("weight_uom")
 	})
 
 	if item.get("enable_deferred_revenue") or item.get("enable_deferred_expense"):
@@ -369,6 +371,9 @@
 	if meta.get_field("barcode"):
 		update_barcode_value(out)
 
+	if out.get("weight_per_unit"):
+		out['total_weight'] = out.weight_per_unit * out.stock_qty
+
 	return out
 
 def get_item_warehouse(item, args, overwrite_warehouse, defaults={}):