Solution : https://service.sap.com/sap/support/notes/51682 (SAP Service marketplace login required)
Key words : 
additional key words function code, freely assigned function keys, short text 'deliver order', delivery -> deliver order, correct function code, previously generated items, function code aure, requested complete delivery, batch input programs, function code
Related Notes : 
       
| 28913 | LOOP in batch-input |