Solution : https://service.sap.com/sap/support/notes/1082864 (SAP Service marketplace login required)
Key words :
error message m3 022, bapi_material_savedata solution implement, attached correction instructions, additional master data, master data, group data, product group, terms mc84, transaction, material &
Related Notes :
| 1260496 | Product group maintenance: Locking problem when saving |