3775847 - "Purchase order item ignored... invalid combination" Due to Incorrect Action Code in SupplierConfirmationRequest_In

• When sending inbound supplier confirmations via SOAP service SupplierConfirmationRequest_In, newly created purchase orders fail while older purchase orders succeed using the same payload structure.
• Error during processing: “Purchase order item ignored because 00010 and 00010 is an invalid combination.”
• In some cases the message appears as: “Purchase order item ignored, since 0010 and 00010 is an invalid combination.”

SAP S/4HANA Cloud Public Edition

1. Create a new purchase order with an item (for example, item 00010) and save.
2. Send an inbound supplier confirmation using the SOAP service SupplierConfirmationRequest_In that references the newly created purchase order.
3. Observe that the service returns the error: “Purchase order item ignored because 00010 and 00010 is an invalid combination.”

Incorrect action code value in the SupplierConfirmationRequest_In payload. For create, the action code must be “01” (two characters) and not “1”.

1. Review the SupplierConfirmationRequest_In payload and locate all ActionCode fields relevant to creating supplier confirmations.
2. For create operations, set ActionCode to “01” (two characters). Do not use “1”.
3. If mappings are done in middleware, adjust the mapping to output “01” for create actions consistently.
4. Resend the supplier confirmation message and verify it processes successfully without the “invalid combination” error.

SupplierConfirmationRequest_In, SOAP, supplier confirmation, purchase order, invalid combination, action code, 01 vs 1, create action, payload mapping, inbound API, item number, s/4hana cloud, enterprise services, confirmation control , KBA , MM-PUR-CNF-ES-2CL , Enterprise Services in Supplier Confirmation (Public Cloud) , Problem