Solution : https://service.sap.com/sap/support/notes/842540 (SAP Service marketplace login required)
Key words :
indicator 'partner determination, partner determination, partner role, partner schema, purchase order, system displays, dialog box, select partners, terms bapi_po_change, pdten reason
Related Notes :
| 494759 | BAPI_PO_CREATE1 and BAPI_PO_CHANGE: This is due to a redesig |