fix: don't set from warehouse for purchase material request (#37132)

erpnext/manufacturing/doctype/production_plan/production_plan.js

@@ -476,6 +476,15 @@ frappe.ui.form.on("Material Request Plan Item", {
 				}
 			})
 		}
+	},
+
+	material_request_type(frm, cdt, cdn) {
+		let row = locals[cdt][cdn];
+
+		if (row.from_warehouse &&
+			row.material_request_type !== "Material Transfer") {
+				frappe.model.set_value(cdt, cdn, 'from_warehouse', '');
+		}
 	}
 });
 

erpnext/manufacturing/doctype/production_plan/production_plan.py

@@ -40,6 +40,12 @@ def validate(self):
 		self._rename_temporary_references()
 		validate_uom_is_integer(self, "stock_uom", "planned_qty")
 		self.validate_sales_orders()
+		self.validate_material_request_type()
+
+	def validate_material_request_type(self):
+		for row in self.get("mr_items"):
+			if row.from_warehouse and row.material_request_type != "Material Transfer":
+				row.from_warehouse = ""
 
 	@frappe.whitelist()
 	def validate_sales_orders(self, sales_order=None):
@@ -749,7 +755,9 @@ def make_material_request(self):
 				"items",
 				{
 					"item_code": item.item_code,
-					"from_warehouse": item.from_warehouse,
+					"from_warehouse": item.from_warehouse
+					if material_request_type == "Material Transfer"
+					else None,
 					"qty": item.quantity,
 					"schedule_date": schedule_date,
 					"warehouse": item.warehouse,

erpnext/manufacturing/doctype/production_plan/test_production_plan.py

@@ -1087,6 +1087,41 @@ def test_resered_qty_for_production_plan_for_material_requests_with_multi_UOM(se
 		)
 		self.assertEqual(reserved_qty_after_mr, before_qty)
 
+	def test_from_warehouse_for_purchase_material_request(self):
+		from erpnext.stock.doctype.warehouse.test_warehouse import create_warehouse
+		from erpnext.stock.utils import get_or_make_bin
+
+		create_item("RM-TEST-123 For Purchase", valuation_rate=100)
+		bin_name = get_or_make_bin("RM-TEST-123 For Purchase", "_Test Warehouse - _TC")
+		t_warehouse = create_warehouse("_Test Store - _TC")
+		make_stock_entry(
+			item_code="Raw Material Item 1",
+			qty=5,
+			rate=100,
+			target=t_warehouse,
+		)
+
+		plan = create_production_plan(item_code="Test Production Item 1", do_not_save=1)
+		mr_items = get_items_for_material_requests(
+			plan.as_dict(), warehouses=[{"warehouse": t_warehouse}]
+		)
+
+		for d in mr_items:
+			plan.append("mr_items", d)
+
+		plan.save()
+
+		for row in plan.mr_items:
+			if row.material_request_type == "Material Transfer":
+				self.assertEqual(row.from_warehouse, t_warehouse)
+
+			row.material_request_type = "Purchase"
+
+		plan.save()
+
+		for row in plan.mr_items:
+			self.assertFalse(row.from_warehouse)
+
 	def test_skip_available_qty_for_sub_assembly_items(self):
 		from erpnext.manufacturing.doctype.bom.test_bom import create_nested_bom