Solution : https://service.sap.com/sap/support/notes/550349 (SAP Service marketplace login required)
Key words :
call type <space> work phase <space> application area vl mesno 494 confirm, version l0 application area vl msgno 494 type, message type space, choose message type 'e', cancelled billing document exists, message class vl, system outputs message vl494, required message type, additional actions related, source code corrections
Related Notes :
| 1518393 | Error VF 072 when cancellation document is released |
| 521409 | Problems with deleting delivery items online |
| 493940 | Preventing deletion of delivery despite cancelled bill |
| 406693 | Inconsistent document flow if a delivery is deleted |