From 0cd95e1995ab395191519a715d7455f6a814f0ce Mon Sep 17 00:00:00 2001 From: Mihir Kandoi Date: Tue, 28 Jul 2026 17:11:51 +0530 Subject: [PATCH] fix(manufacturing): fall back to UOM Conversion Factor in Production Plan (#57553) Production Plan read the conversion factor straight off the item's own UOM child table, so an item with a purchase UOM but no matching row threw "UOM Conversion factor not found" while Stock Entry silently resolved it from the item's variant template or the UOM Conversion Factor doctype. Resolve it the same way, and keep returning None when nothing is configured anywhere so the missing-setup error still fires. --- .../services/planning_queries.py | 10 +- .../production_plan/test_production_plan.py | 112 ++++++++++++++++++ 2 files changed, 121 insertions(+), 1 deletion(-) diff --git a/erpnext/manufacturing/doctype/production_plan/services/planning_queries.py b/erpnext/manufacturing/doctype/production_plan/services/planning_queries.py index 615d840f08a..50ce07df729 100644 --- a/erpnext/manufacturing/doctype/production_plan/services/planning_queries.py +++ b/erpnext/manufacturing/doctype/production_plan/services/planning_queries.py @@ -10,12 +10,20 @@ from frappe.query_builder.functions import IfNull, Sum from pypika.terms import ExistsCriterion from erpnext.manufacturing.doctype.work_order.work_order import get_item_details +from erpnext.stock.doctype.item.item import get_uom_conv_factor def get_uom_conversion_factor(item_code, uom): - return frappe.db.get_value( + item = frappe.get_cached_value("Item", item_code, ["variant_of", "stock_uom"], as_dict=True) + conversion_factor = frappe.db.get_value( "UOM Conversion Detail", {"parent": item_code, "uom": uom}, "conversion_factor" ) + if not conversion_factor and item.variant_of: + conversion_factor = frappe.db.get_value( + "UOM Conversion Detail", {"parent": item.variant_of, "uom": uom}, "conversion_factor" + ) + + return conversion_factor or get_uom_conv_factor(uom, item.stock_uom) @frappe.whitelist() diff --git a/erpnext/manufacturing/doctype/production_plan/test_production_plan.py b/erpnext/manufacturing/doctype/production_plan/test_production_plan.py index bc3c62bfffd..5917804c411 100644 --- a/erpnext/manufacturing/doctype/production_plan/test_production_plan.py +++ b/erpnext/manufacturing/doctype/production_plan/test_production_plan.py @@ -1903,6 +1903,118 @@ class TestProductionPlan(ERPNextTestSuite): self.assertEqual(row.warehouse, mrp_warhouse) self.assertEqual(row.quantity, 12.0) + def test_purchase_uom_falls_back_to_uom_conversion_factor(self): + from erpnext.manufacturing.doctype.bom.test_bom import create_nested_bom + + if not frappe.db.exists("UOM Conversion Factor", {"from_uom": "Kg", "to_uom": "Gram"}): + frappe.get_doc( + doctype="UOM Conversion Factor", + category="Mass", + from_uom="Kg", + to_uom="Gram", + value=1000, + ).insert() + + rm = make_item("Test RM Item Global CF", {"is_stock_item": 1, "stock_uom": "Gram"}) + rm.purchase_uom = "Kg" + rm.save() + self.assertFalse([row for row in rm.uoms if row.uom == "Kg"]) + + bom_tree = {"Test FG Item Global CF": {rm.name: {}}} + parent_bom = create_nested_bom(bom_tree, prefix="") + + plan = create_production_plan( + item_code=parent_bom.item, + planned_qty=2000, + ignore_existing_ordered_qty=1, + skip_getting_mr_items=1, + do_not_submit=1, + warehouse="_Test Warehouse - _TC", + ) + plan.for_warehouse = "_Test Warehouse - _TC" + + items = get_items_for_material_requests( + plan.as_dict(), warehouses=[{"warehouse": "_Test Warehouse - _TC"}] + ) + + row = frappe._dict(next(item for item in items if item["item_code"] == rm.name)) + self.assertEqual(row.uom, "Kg") + self.assertEqual(row.conversion_factor, 1000) + self.assertEqual(row.quantity, 2) + + def test_variant_inherits_purchase_uom_conversion_factor_of_template(self): + from erpnext.manufacturing.doctype.bom.test_bom import create_nested_bom + + template = make_item( + "TRMVCF", + { + "is_stock_item": 1, + "stock_uom": "Nos", + "has_variants": 1, + "attributes": [{"attribute": "Colour"}], + }, + ) + if not [row for row in template.uoms if row.uom == "Box"]: + template.purchase_uom = "Box" + template.append("uoms", {"uom": "Box", "conversion_factor": 12}) + template.save() + + if not frappe.db.exists("Item", "TRMVCF-RED"): + create_variant("TRMVCF", {"Colour": "Red"}).insert() + + variant = frappe.get_doc("Item", "TRMVCF-RED") + variant.uoms = [row for row in variant.uoms if row.uom != "Box"] + variant.purchase_uom = "Box" + variant.save() + + bom_tree = {"Test FG Item Variant CF": {variant.name: {}}} + parent_bom = create_nested_bom(bom_tree, prefix="") + + plan = create_production_plan( + item_code=parent_bom.item, + planned_qty=24, + ignore_existing_ordered_qty=1, + skip_getting_mr_items=1, + do_not_submit=1, + warehouse="_Test Warehouse - _TC", + ) + plan.for_warehouse = "_Test Warehouse - _TC" + + items = get_items_for_material_requests( + plan.as_dict(), warehouses=[{"warehouse": "_Test Warehouse - _TC"}] + ) + + row = frappe._dict(next(item for item in items if item["item_code"] == variant.name)) + self.assertEqual(row.conversion_factor, 12) + self.assertEqual(row.quantity, 2) + + def test_missing_purchase_uom_conversion_factor_throws(self): + from erpnext.manufacturing.doctype.bom.test_bom import create_nested_bom + + rm = make_item("Test RM Item Missing CF", {"is_stock_item": 1, "stock_uom": "Nos"}) + rm.purchase_uom = "Box" + rm.save() + + bom_tree = {"Test FG Item Missing CF": {rm.name: {}}} + parent_bom = create_nested_bom(bom_tree, prefix="") + + plan = create_production_plan( + item_code=parent_bom.item, + planned_qty=10, + ignore_existing_ordered_qty=1, + skip_getting_mr_items=1, + do_not_submit=1, + warehouse="_Test Warehouse - _TC", + ) + plan.for_warehouse = "_Test Warehouse - _TC" + + with self.assertRaises(frappe.ValidationError) as error: + get_items_for_material_requests( + plan.as_dict(), warehouses=[{"warehouse": "_Test Warehouse - _TC"}] + ) + + self.assertIn("UOM Conversion factor", str(error.exception)) + def test_mr_qty_for_complex_bom(self): from erpnext.manufacturing.doctype.bom.test_bom import create_nested_bom from erpnext.stock.doctype.warehouse.test_warehouse import create_warehouse