Solution : https://service.sap.com/sap/support/notes/978170 (SAP Service marketplace login required)
Key words :
prerequisites program error solution implement, error message se181, item category service, unknow account assigment, service item reason, purchase order, correctly filled, issue wrongly, terms back, code correction
Related Notes :
1462413 | BAPI_PO_CREATE1: SE181 for service item with unknow account |
1027212 | Follow-on Note of Note 957718 |