SAP PO 7.5: AS2 Sender adapter "Content type"

[peter_wallner2]

Dear experts,

we have a working scenario "AS2 Sender - PO 7.5 - IDoc Receiver." where the Sender sends us IDoc XML via an AS2 connection into PO 7.5, PO forwards it to S/4 via an IDoc receiver (no mapping).
The content type is "Application/EDI-X12"

Now, we set up a second similar scenario for a different Sender party. But when they send an IDoc XML via the AS2 connection it fails in SAP PO because the XML has text above the actual IDoc:

The content type is different:

The AS2 Sender adapter is set up the same way as for the working scenario. I can't set the content type on the AS2 Sender adapter either. The messages come from the 3rd party through a web dispatcher on our side and then hit SAP PO 7.5. The 3rd party says they send with Application/EDI-X12.

Has anyone experienced something similar? Could our web dispatcher be the problem?

I am trying to get ideas on how to troubleshoot this.

Thank you.

[peter_wallner2]

Hello Alex,

Thank you, our EDI partner fixed the issue on their side. I did not try the PayloadSwapBean. But it sounds like a neat idea.

Best regards, Peter