fix: honor overproduction allowance in duplicate entry check

erpnext/stock/doctype/stock_entry/stock_entry.py

@@ -1273,7 +1273,13 @@ class StockEntry(StockController):
 					and ifnull(s_warehouse,'')='' """.format(", ".join(["%s" * len(other_ste)]), "%s"),
 				args,
 			)[0][0]
-			if fg_qty_already_entered and fg_qty_already_entered >= qty:
+			allowance_percentage = flt(
+				frappe.db.get_single_value(
+					"Manufacturing Settings", "overproduction_percentage_for_work_order"
+				)
+			)
+			allowed_qty = flt(qty) + (allowance_percentage / 100 * flt(qty))
+			if fg_qty_already_entered and fg_qty_already_entered >= allowed_qty:
 				frappe.throw(
 					_("Stock Entries already created for Work Order {0}: {1}").format(
 						self.work_order, ", ".join(other_ste)

erpnext/stock/doctype/stock_entry/test_stock_entry.py

@@ -30,7 +30,11 @@ from erpnext.stock.doctype.serial_and_batch_bundle.test_serial_and_batch_bundle
 	make_serial_batch_bundle,
 )
 from erpnext.stock.doctype.serial_no.serial_no import *
-from erpnext.stock.doctype.stock_entry.stock_entry import FinishedGoodError, make_stock_in_entry
+from erpnext.stock.doctype.stock_entry.stock_entry import (
+	DuplicateEntryForWorkOrderError,
+	FinishedGoodError,
+	make_stock_in_entry,
+)
 from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
 from erpnext.stock.doctype.stock_ledger_entry.stock_ledger_entry import StockFreezeError
 from erpnext.stock.doctype.stock_reconciliation.stock_reconciliation import (
@@ -1966,6 +1970,34 @@ class TestStockEntry(FrappeTestCase):
 				se_ok.submit()
 				self.assertEqual(se_ok.docstatus, 1)
 
+	def test_duplicate_entry_for_work_order(self):
+		from erpnext.manufacturing.doctype.work_order.test_work_order import make_wo_order_test_record
+		from erpnext.manufacturing.doctype.work_order.work_order import (
+			make_stock_entry as make_wo_stock_entry,
+		)
+
+		wo = make_wo_order_test_record(qty=1)
+		make_stock_entry(item_code="_Test Item", target="Stores - _TC", qty=10, basic_rate=100)
+		make_stock_entry(
+			item_code="_Test Item Home Desktop 100", target="Stores - _TC", qty=10, basic_rate=100
+		)
+
+		transfer = frappe.get_doc(make_wo_stock_entry(wo.name, "Material Transfer for Manufacture", 1))
+		for d in transfer.get("items"):
+			d.s_warehouse = "Stores - _TC"
+		transfer.insert()
+		transfer.submit()
+
+		mfg = frappe.get_doc(make_wo_stock_entry(wo.name, "Manufacture", 1))
+		mfg.insert()
+
+		duplicate = frappe.get_doc(make_wo_stock_entry(wo.name, "Manufacture", 1))
+		self.assertRaises(DuplicateEntryForWorkOrderError, duplicate.insert)
+
+		with change_settings("Manufacturing Settings", {"overproduction_percentage_for_work_order": 100}):
+			within_allowance = frappe.get_doc(make_wo_stock_entry(wo.name, "Manufacture", 1))
+			within_allowance.insert()
+
 	@change_settings("Stock Settings", {"action_if_quality_inspection_is_rejected": "Stop"})
 	def test_quality_inspection_required_for_manufacture(self):
 		from erpnext.controllers.stock_controller import (