Solution : https://service.sap.com/sap/support/notes/63859 (SAP Service marketplace login required)
Key words :
additional key words parking, purchase order assigned, subsequent debit/credit, field bseg-sgtxt, subsequent debit, bseg-sgtxt, bseg-tbtkz, bseg-xskrl, bseg-zuonr, item screen
Related Notes :
73436 | MR44: Final invoice indicator for purchase order |
65206 | MR44 : Parked document cannot be posted |
50646 | MR44/MR08: Customer-specific acct assignment fields |
42828 | MR44/MR08 with OrdRef and acct assignmt changeable |