Solution : https://service.sap.com/sap/support/notes/1001218 (SAP Service marketplace login required)
Key words :
prerequisites program error solution, account assignment percentage distributions, multiple account assignments, original percentage distributions, percentage distributions, original document, service items, service lines, terms po_srv_accass_values, bapi_po_create reason
Related Notes :
1482322 | Corrections to PO creation for service items in backend |
1000184 | Account assignment error when document transfer to back end |