Solution : https://service.sap.com/sap/support/notes/308821 (SAP Service marketplace login required)
Key words :
additional key words me21n, transaction me21n, purchase order, item overview, button 'select, selected items, items displayed, program error, advance correction, prerequisites
Related Notes :
| 525682 | |
| 304537 | ME21N function 'Linked documents' is missing |