3734556 - Error Message CO/080 "External number assignment (enter valid order number)" occurs when creating production order with external numbering and custom fields via API_PRODUCTION_ORDER_2_SRV/A_ProductionOrder_2

When creating production order with external numbering and custom fields via API_PRODUCTION_ORDER_2_SRV/A_ProductionOrder_2 POST method, error message CO/080 “External number assignment (enter valid order number)” occurs. However, creating production order with external numbering but without custom fields, or updating the external numbering production order with custom fields works fine.

SAP S/4HANA Cloud Public Edition

API_PRODUCTION_ORDER_2_SRV, A_ProductionOrder_2, production order, custom fields, external numbering, CO/080 , KBA , PP-SFC-ES-2CL , Enterprise Services in Shop Floor Control (Public Cloud) , Problem