fix(buying): honour over delivery/receipt allowance in PR mapper (#55247)

erpnext/buying/doctype/purchase_order/purchase_order.js

@@ -351,9 +351,10 @@ erpnext.buying.PurchaseOrderController = class PurchaseOrderController extends (
 			if (doc.status != "Closed") {
 				if (doc.status != "On Hold") {
 					if (
-						doc.items
+						(doc.items
 							.filter((item) => !item.delivered_by_supplier)
-							.some((item) => item.received_qty < item.qty) &&
+							.some((item) => item.received_qty < item.qty) ||
+							doc.__onload?.has_pending_receivable_qty) &&
 						allow_receipt
 					) {
 						this.frm.add_custom_button(

erpnext/buying/doctype/purchase_order/purchase_order.py

@@ -19,6 +19,7 @@ from erpnext.accounts.doctype.sales_invoice.sales_invoice import (
 from erpnext.accounts.party import get_party_account, get_party_account_currency
 from erpnext.buying.utils import validate_for_items
 from erpnext.controllers.buying_controller import BuyingController
+from erpnext.controllers.status_updater import get_allowance_for
 from erpnext.manufacturing.doctype.blanket_order.blanket_order import (
 	validate_against_blanket_order,
 )
@@ -185,6 +186,7 @@ class PurchaseOrder(BuyingController):
 
 	def onload(self):
 		self.set_onload("can_update_items", self.can_update_items())
+		self.set_onload("has_pending_receivable_qty", self.has_pending_receivable_qty())
 
 	def before_validate(self):
 		self.set_has_unit_price_items()
@@ -646,6 +648,19 @@ class PurchaseOrder(BuyingController):
 
 		return result
 
+	def has_pending_receivable_qty(self) -> bool:
+		"""Return True if any non-drop-ship item can still be received,
+		considering the configured over_delivery_receipt_allowance.
+		"""
+		for item in self.get("items", []):
+			if item.delivered_by_supplier:
+				continue
+			tolerance = flt(get_allowance_for(item.item_code, qty_or_amount="qty")[0])
+			max_receivable_qty = flt(item.qty) * (100 + tolerance) / 100
+			if abs(flt(item.received_qty)) < abs(max_receivable_qty):
+				return True
+		return False
+
 	def update_ordered_qty_in_so_for_removed_items(self, removed_items):
 		"""
 		Updates ordered_qty in linked SO when item rows are removed using Update Items
@@ -747,13 +762,25 @@ def make_purchase_receipt(
 	def is_unit_price_row(source):
 		return has_unit_price_items and source.qty == 0
 
+	def get_max_receivable_qty(source):
+		tolerance = flt(get_allowance_for(source.item_code, qty_or_amount="qty")[0])
+		return flt(source.qty) * (100 + tolerance) / 100
+
 	def update_item(obj, target, source_parent):
-		target.qty = flt(obj.qty) if is_unit_price_row(obj) else flt(obj.qty) - flt(obj.received_qty)
-		target.stock_qty = (flt(obj.qty) - flt(obj.received_qty)) * flt(obj.conversion_factor)
-		target.amount = (flt(obj.qty) - flt(obj.received_qty)) * flt(obj.rate)
-		target.base_amount = (
-			(flt(obj.qty) - flt(obj.received_qty)) * flt(obj.rate) * flt(source_parent.conversion_rate)
-		)
+		received_qty = flt(obj.received_qty)
+		qty = flt(obj.qty)
+		pending_qty = qty - received_qty
+
+		if is_unit_price_row(obj):
+			target.qty = qty
+		elif pending_qty > 0:
+			target.qty = pending_qty
+		else:
+			target.qty = max(get_max_receivable_qty(obj) - received_qty, 0)
+
+		target.stock_qty = target.qty * flt(obj.conversion_factor)
+		target.amount = target.qty * flt(obj.rate)
+		target.base_amount = target.qty * flt(obj.rate) * flt(source_parent.conversion_rate)
 
 	def select_item(d):
 		filtered_items = args.get("filtered_children", [])
@@ -785,7 +812,9 @@ def make_purchase_receipt(
 				},
 				"postprocess": update_item,
 				"condition": lambda doc: (
-					True if is_unit_price_row(doc) else abs(doc.received_qty) < abs(doc.qty)
+					True
+					if is_unit_price_row(doc)
+					else abs(doc.received_qty) < abs(get_max_receivable_qty(doc))
 				)
 				and doc.delivered_by_supplier != 1
 				and select_item(doc),

erpnext/buying/doctype/purchase_order/test_purchase_order.py

@@ -98,6 +98,60 @@ class TestPurchaseOrder(ERPNextTestSuite):
 		po.load_from_db()
 		self.assertEqual(po.get("items")[0].received_qty, 4)
 
+	def test_make_purchase_receipt_respects_over_receipt_allowance(self):
+		"""make_purchase_receipt must include fully-received PO lines when
+		over_delivery_receipt_allowance permits further receipt.
+
+		Regression test for #55246: the mapper dropped rows once
+		received_qty >= qty, ignoring the configured tolerance.
+		"""
+		from erpnext.buying.doctype.purchase_order.purchase_order import make_purchase_receipt
+
+		# 50% tolerance — 10 ordered allows up to 15 received
+		frappe.db.set_value("Item", "_Test Item", "over_delivery_receipt_allowance", 50)
+		try:
+			po = create_purchase_order()
+			create_pr_against_po(po.name, received_qty=10)
+
+			po.load_from_db()
+			self.assertEqual(po.get("items")[0].received_qty, 10)
+
+			# onload must flag pending receivable qty so the UI keeps the
+			# "Create > Purchase Receipt" button visible even at per_received = 100
+			po.run_method("onload")
+			self.assertTrue(
+				po.get_onload("has_pending_receivable_qty"),
+				"onload should flag pending receivable qty while tolerance is available",
+			)
+
+			# Re-mapping the same PO must yield a PR with the row present
+			# and qty pre-filled to the remaining tolerance (15 - 10 = 5)
+			pr = make_purchase_receipt(po.name)
+			self.assertEqual(
+				len(pr.get("items")), 1, "Fully-received row dropped despite available tolerance"
+			)
+			self.assertEqual(pr.get("items")[0].item_code, "_Test Item")
+			self.assertEqual(pr.get("items")[0].qty, 5)
+			self.assertEqual(pr.get("items")[0].purchase_order_item, po.get("items")[0].name)
+
+			# Tolerance exhausted → row must be filtered out as before
+			create_pr_against_po(po.name, received_qty=5)
+			po.load_from_db()
+			self.assertEqual(po.get("items")[0].received_qty, 15)
+
+			po.run_method("onload")
+			self.assertFalse(
+				po.get_onload("has_pending_receivable_qty"),
+				"onload should clear pending receivable flag once tolerance is exhausted",
+			)
+
+			pr_empty = make_purchase_receipt(po.name)
+			self.assertEqual(
+				len(pr_empty.get("items")), 0, "Row should be dropped once tolerance is exhausted"
+			)
+		finally:
+			frappe.db.set_value("Item", "_Test Item", "over_delivery_receipt_allowance", 0)
+
 	def test_ordered_qty_against_pi_with_update_stock(self):
 		existing_ordered_qty = get_ordered_qty()
 		po = create_purchase_order()