Diagnosis
Entity type &V2& is used as an additional entity type with usagehierarchy name in the hierarchies of entity type &V3&. That iswhy entity type &V2& can only have higher-level entity types that arealso the higher-level entity types for entity type &V3&. Entity typeV4 is a leading entity type for v2, but not for v3.

System Response
The data model cannot be saved or activated