M3 APS450/APS455 API – ValidateByBatchNo ends in status 78 while UI validation succeeds

Marek Derlukiewicz

Hi,

We are processing PO supplier invoices through APS450MI and validating them using ValidateByBatchNo.

When validation is triggered through the API using a service user, the invoice ends in status 78 – Invoice matching recoding failed.

However, validating the same invoice manually in APS450 (option 8 – Validation) with a normal M3 user completes successfully and the invoice reaches status 90.

CMS421 only shows a generic invoice matching/recoding error and does not identify the actual cause.

What could possibly be causing such behavior and status/error?

Also, is there any way to obtain more detailed diagnostics for status 78 than the message available in CMS421?

Screenshots attached.

Thanks in advance.