Restrict access to Basic Data view (Material Master)
I have the following scenario: Mater data team from company code X creates material A with all views (all levels - client, plant, sales org, etc). The master data team from company code Y extends material A to their org. structure. However they are not allowed to change the basic data information of material A. They are allowed to change the basic data of the materials created by them (not extended). Since I cannot restrict the access to the basic data view (maintenance status K), how can I prevent company code Y from changing only the basic data info of material A and still maintain other views? Can I use the field authorization group (MARA-BEGRU) and object M_MATE_MAT? If so, how does this work exactly?