SAP Message 29477 - Material & & is to be discontinued

Diagnosis
You want to maintain an alternative item group for material componentV1.

System Response
The system checks the plant data of material component &V1&. MaterialV1 is maintained as a material to be discontinued in plant v2(material master record, MRP 4 view).

Procedure
You see this warning message because the alternative item overridesdiscontinuation data in related application areas (such as MRP) inplant &V2&.

120544CO01:Modif.:Simple discontnuatn despite. alt. comp.
121360MRP: Discontinued parts vs. alternative item
125364Order component: Non-supported combinations