Solution : https://service.sap.com/sap/support/notes/398575 (SAP Service marketplace login required)
Key words :
attached sample source code, terms vf05 reason, distribution -> system modifications, field vbrk-belnr, accounting document due, extended program check, current display variant, accounting document number, document number, field belnr
Related Notes :
| 350068 | Additionl fields in VA05:Customer material number as example |
| 170183 | |
| 42269 | VBRK-BELNR and VBRK-GJAHR are not provided |