Solution : https://service.sap.com/sap/support/notes/1390605 (SAP Service marketplace login required)
Key words :
required entry field reason, required entry field, source code corrections, material master display, material master data, error message occurs, material master, error message, material view, program error
Related Notes :
| 1260496 | Product group maintenance: Locking problem when saving |
| 621753 | MC84: Error message when creating product group |