Diagnosis
Underneath a given node of a hierarchy you must make sure that alldirect and indirect subnodes reside in the same data slice. Entity typesV3 and v4 are specified as nodes for the hierarchy-defining entitytype &V2&.
Entity type &V1& is at a higher level to entity type &V3& but is not ata higher level to entity type &V4&. Therefore, you cannot use entitytype &V1& to define a data slice.

System Response
The changes cannot be saved.

Procedure
Remove entity type &V1& from the data slice definition.