Solution : https://service.sap.com/sap/support/notes/97831 (SAP Service marketplace login required)
Key words :
additional key words parked documents, symptom posting parked documents, error messages 00055 'required entry, cancelling posted documents, program error, special cases, system generates, invoice refers, purchase order, account assignment
Related Notes :
| 75408 | MR08/MR44:Changed G/L account in account assignment |