Solution : https://service.sap.com/sap/support/notes/493083 (SAP Service marketplace login required)
Key words :
terms supply area reason, call transaction se11, 'view flds' frame, default supply area, production storage location, wm material staging, source code correction, table view mfauf, activate view mfauf, activate structure msfcv
Related Notes :
| 531494 | Change work center, invalid storage location from PVB |
| 388881 | Insert/reassign comp.: supply area + storage loc. (II) |