Solution : https://service.sap.com/sap/support/notes/317477 (SAP Service marketplace login required)
Key words :
additional key words me21n, required entry field check, required entry field, set field 'batch', enjoy purchase order, field selection, purchase order, transaction me21n, program error, advance correction
Related Notes :
| 410817 | ME21 batch reqrd entry fld w/ matl w/out batch mgmt requirmt |
| 378897 | ME21N Btch req.entry fld for matl w/o btch mgmt req |