Solution : https://service.sap.com/sap/support/notes/530900 (SAP Service marketplace login required)
Key words :
external purchase order number, function module bapi_po_create1, external number, purchase order, filled correctly, terms createfromdata1, poheader-po_number, e1bpmepoheaderx reason, program error, solution implement
Related Notes :
| 494759 | BAPI_PO_CREATE1 and BAPI_PO_CHANGE: This is due to a redesig |