SAP Message UCM0076 - The role "subassignment" cannot be allocated to characteristic &2

Diagnosis
You want to assign the rolesubassignment tocharacteristic &v2&. However this is not possible because theindependent characteristic &v3& is a currency key or a unit of measure.

System Response
The field catalog for databasis &v1& is inconsistent and cannot be saved.

Procedure
Assign a different role to characteristic &v2&.