Solution : https://service.sap.com/sap/support/notes/314536 (SAP Service marketplace login required)
Key words :
system issues error message bs001, additional key words va02, t163k-kzvbr = 'e', source code corrections, sales order item, account assignment type, system determines, version item, requirements type, status object
Related Notes :
| 322136 | Version document: Config n changeable /V1649/BS001 |
| 322135 | Configuration cannot be changed in version document |
| 314645 | "Item & cannot be configured" (V1469) in order version |