Solution : https://service.sap.com/sap/support/notes/1286659 (SAP Service marketplace login required)
Key words :
system issues error message vl 158, underlying purchase order, purchase order confirmation, complete inbound deliveries, execute transaction vl_complete, source code corrections, terms vl 158, program error, system checks, transaction vl_complete
Related Notes :
| 1451838 | No PO update when VL_COMPLETE used for completion |