Solution : https://service.sap.com/sap/support/notes/588777 (SAP Service marketplace login required)
Key words :
img customizing-> logistics - general -> material group -> create -> change -> display -> deletethese options, logistics - general -> material master -> settings, key fields -> define material groupsyou, sap retail area menu, generates transport requests based, system issues error messageww 015, standard material group maintenance, offered maintenance options, material group unable, material group hierarchies
Related Notes :
863907 | Composite SAP Note: Maintaining material groups |
356483 | Customizing: Current settings in the test system |