Solution : https://service.sap.com/sap/support/notes/83135 (SAP Service marketplace login required)
Key words :
additional key words grkor, sales order target quantity, attached advance corrections, required delivery quantity, sales order, delivery group, partial delivery, normal item, bom structure, partially delivered
Related Notes :
52694 | Coll. note for quantity correl. in Rel. 3.0C-4.5B |