fix: incorrect material request quantity in Production Plan (#38566)

erpnext/manufacturing/doctype/production_plan/production_plan.py

@@ -1597,19 +1597,23 @@ def get_materials_from_other_locations(item, warehouses, new_mr_items, company):
 	)
 
 	locations = get_available_item_locations(
-		item.get("item_code"), warehouses, item.get("quantity"), company, ignore_validation=True
+		item.get("item_code"),
+		warehouses,
+		item.get("quantity") * item.get("conversion_factor"),
+		company,
+		ignore_validation=True,
 	)
 
 	required_qty = item.get("quantity")
+	if item.get("conversion_factor") and item.get("purchase_uom") != item.get("stock_uom"):
+		# Convert qty to stock UOM
+		required_qty = required_qty * item.get("conversion_factor")
+
 	# get available material by transferring to production warehouse
 	for d in locations:
 		if required_qty <= 0:
 			return
 
-		conversion_factor = 1.0
-		if purchase_uom != stock_uom and purchase_uom == item["uom"]:
-			conversion_factor = get_uom_conversion_factor(item["item_code"], item["uom"])
-
 		new_dict = copy.deepcopy(item)
 		quantity = required_qty if d.get("qty") > required_qty else d.get("qty")
 
@@ -1619,10 +1623,11 @@ def get_materials_from_other_locations(item, warehouses, new_mr_items, company):
 				"material_request_type": "Material Transfer",
 				"uom": new_dict.get("stock_uom"),  # internal transfer should be in stock UOM
 				"from_warehouse": d.get("warehouse"),
+				"conversion_factor": 1.0,
 			}
 		)
 
-		required_qty -= quantity / conversion_factor
+		required_qty -= quantity
 		new_mr_items.append(new_dict)
 
 	# raise purchase request for remaining qty
@@ -1634,7 +1639,7 @@ def get_materials_from_other_locations(item, warehouses, new_mr_items, company):
 		if frappe.db.get_value("UOM", purchase_uom, "must_be_whole_number"):
 			required_qty = ceil(required_qty)
 
-		item["quantity"] = required_qty
+		item["quantity"] = required_qty / item.get("conversion_factor")
 
 		new_mr_items.append(item)
 

erpnext/manufacturing/doctype/production_plan/test_production_plan.py

@@ -1283,12 +1283,14 @@ def test_transfer_and_purchase_mrp_for_purchase_uom(self):
 		for row in items:
 			row = frappe._dict(row)
 			if row.material_request_type == "Material Transfer":
+				self.assertTrue(row.uom == row.stock_uom)
 				self.assertTrue(row.from_warehouse in [wh1, wh2])
 				self.assertEqual(row.quantity, 2)
 
 			if row.material_request_type == "Purchase":
+				self.assertTrue(row.uom != row.stock_uom)
 				self.assertTrue(row.warehouse == mrp_warhouse)
-				self.assertEqual(row.quantity, 12)
+				self.assertEqual(row.quantity, 12.0)
 
 	def test_mr_qty_for_same_rm_with_different_sub_assemblies(self):
 		from erpnext.manufacturing.doctype.bom.test_bom import create_nested_bom
@@ -1404,6 +1406,58 @@ def test_reserve_sub_assembly_items(self):
 
 		self.assertEqual(after_qty, before_qty)
 
+	def test_material_request_qty_purchase_and_material_transfer(self):
+		from erpnext.stock.doctype.item.test_item import make_item
+		from erpnext.stock.doctype.warehouse.test_warehouse import create_warehouse
+
+		fg_item = make_item(properties={"is_stock_item": 1, "stock_uom": "_Test UOM 1"}).name
+		bom_item = make_item(
+			properties={"is_stock_item": 1, "stock_uom": "_Test UOM 1", "purchase_uom": "Nos"}
+		).name
+
+		store_warehouse = create_warehouse("Store Warehouse", company="_Test Company")
+		rm_warehouse = create_warehouse("RM Warehouse", company="_Test Company")
+
+		make_stock_entry(
+			item_code=bom_item,
+			qty=60,
+			target=store_warehouse,
+			rate=99,
+		)
+
+		if not frappe.db.exists("UOM Conversion Detail", {"parent": bom_item, "uom": "Nos"}):
+			doc = frappe.get_doc("Item", bom_item)
+			doc.append("uoms", {"uom": "Nos", "conversion_factor": 10})
+			doc.save()
+
+		make_bom(item=fg_item, raw_materials=[bom_item], source_warehouse="_Test Warehouse - _TC")
+
+		pln = create_production_plan(
+			item_code=fg_item, planned_qty=10, stock_uom="_Test UOM 1", do_not_submit=1
+		)
+
+		pln.for_warehouse = rm_warehouse
+		items = get_items_for_material_requests(
+			pln.as_dict(), warehouses=[{"warehouse": store_warehouse}]
+		)
+
+		for row in items:
+			self.assertEqual(row.get("quantity"), 10.0)
+			self.assertEqual(row.get("material_request_type"), "Material Transfer")
+			self.assertEqual(row.get("uom"), "_Test UOM 1")
+			self.assertEqual(row.get("from_warehouse"), store_warehouse)
+			self.assertEqual(row.get("conversion_factor"), 1.0)
+
+		items = get_items_for_material_requests(
+			pln.as_dict(), warehouses=[{"warehouse": pln.for_warehouse}]
+		)
+
+		for row in items:
+			self.assertEqual(row.get("quantity"), 1.0)
+			self.assertEqual(row.get("material_request_type"), "Purchase")
+			self.assertEqual(row.get("uom"), "Nos")
+			self.assertEqual(row.get("conversion_factor"), 10.0)
+
 
 def create_production_plan(**args):
 	"""