Solution : https://service.sap.com/sap/support/notes/64718 (SAP Service marketplace login required)
Key words :
menu path edit -> create element ->template/entry, directory /general/r3server/abap/note, additional key words account assignment, parked subsequent debit/credit invoice, insert field ek08r-tbtkz, loop field ek08r-tbtkz, field ek08r-tbtkz, menu goto -> dict, subsequent debit indicator, input/output field
Related Notes :
42828 | MR44/MR08 with OrdRef and acct assignmt changeable |