Diagnosis
You have defined a number range object for entity type &V2& from whichthe system would generate temporary keys when creating an instance.However, the number range object is only relevant for entity types withinternal key assignments. It is not possible to assign an internal keyfor entity type &V2&.

System Response
You cannot activate the data model.

Procedure
In the Customizing activity Edit Data Model, donot enter a number range object under Temporary Key for entitytypes without internal key assignments.