We are attempting to process PO changes via PORDCH02 IDoc.The key scenario is adding a new line to a PO with Account Assignment P and a WBS Element.
We have populated E1BPMEPOACCT and E1BPMEPOACCTX for the same PO_ITEM value 00002.
(Note the corresponding E1BPMEPOITEM segment has ACCTASSCAT = "P" as required)
E1BPMEPOACCT-WBS_ELEMENT has a valid value (verified vs. a previous line item that was created successfully on PO create)
E1BPMEPOACCTX-WBS_ELEMENT is set to "X"
The IDoc is failing with the following status 51 errors: