Solution : https://service.sap.com/sap/support/notes/578119 (SAP Service marketplace login required)
Key words :
enjoysap purchase order transaction, support package sapkh46b48, attached advance correction, material master reason, purchase order quantity, variable order unit, purchase order, advance correction, variable order, material master
Related Notes :
608863 | BAPI_PO_CHANGE: Delivery date not changed |