Solution : https://service.sap.com/sap/support/notes/166208 (SAP Service marketplace login required)
Key words :
additional key words va01 va02 invoice, field 'copy item number', identical item numbers, copy control, schedule lines, sales order, billing document, billing documents, advance correction, prerequisites
Related Notes :
168887 | AFS V1.0D2 Fixpack #5 including HP/LCP 27-31 |