Solution : https://service.sap.com/sap/support/notes/358163 (SAP Service marketplace login required)
Key words :
additional key words me21n, set fields 'supplying vendor', fields 'item number interval', fields 'supplying vendor', tab page partners, view 'field selection, field selection keys, enjoy purchase order, -item interval', fields directly
Related Notes :
| 491789 | FAQ: Purchase order (ME21N, ME22N, ME23N) |