Solution : https://service.sap.com/sap/support/notes/94729 (SAP Service marketplace login required)
Key words :
individual purchase order items, vbap-kztlf = 'b', incorrect confirmed quantity, additional key words, attached advance corrections, partial delivery indicator, partial delivery, purchase orders, sales order, system carries
Related Notes :
| 113830 | VV400 when changing partial delivery indicator |