Solution : https://service.sap.com/sap/support/notes/329719 (SAP Service marketplace login required)
Key words :
additional key words mm01, afs material, grid leads, error message, create grid ', grid' manually, target clients, client copy, customizing settings, advance correction
Related Notes :
| 1538070 | Cannot create a "No Grid" material using IDOC or BAPI |
| 334211 | AFS V2.5B fixpack #01 including Hot Packages 19-30 |