Solution : https://service.sap.com/sap/support/notes/565443 (SAP Service marketplace login required)
Key words :
transaction vfx3 'release billing documents, 'release billing documents, menu option exists, confusing menu option, display status selk, 'menu bar -> program', terms gui status, display program sdblbddl, billing document, transaction se80
Related Notes :
| 1131432 | VFX3 cannot be executed in the background |
| 785942 | Unable to run VFX3 or SDBLBDDL in the background |
| 562004 | Release to accounting in the background |