Solution : https://service.sap.com/sap/support/notes/1505552 (SAP Service marketplace login required)
Key words :
unnecessary account assignment object check, multiple account assignment, multiple account assignments, receive error message, field ekkn-netwr, attached coding correction, account assignment, ekkn-netwr, coding error, change data
Related Notes :
1592376 | MAA: Wrong EKKN-NETWR update |
1457285 | FAQ: Accounting PO Transfer, FI/MM Validation Errors |