Solution : https://service.sap.com/sap/support/notes/30889 (SAP Service marketplace login required)
Key words :
vbakmaster data field kvgr1offsetfield lengthkeyfield1 rbeln <-- error correct, 99characteristic kvgr1master data tab, distribution document tables vbak, additional key words derivation, correct key field, incorrect key field, vbkd remain initial, master table field, kvgr1 field, table vbak
Related Notes :
| 39449 | Characteristics missing from PAPARTNER/VB* tables |