Solution : https://service.sap.com/sap/support/notes/213949 (SAP Service marketplace login required)
Key words :
attached source code corrections, additional key words me21n, user-specific basis, enjoy purchase order, variable screen layout, purchase order, screen layout, transaction me21n, longer run, recorded catt
Related Notes :
| 217437 | ME21N/ME51N: Batch input and CATT not possible |