SAP Message UGMD139 - Field &1: This compound differs from that of basic field &2

Diagnosis
Field &v1& refers to field &v2&. At the same time, it belongs to anotherfield in a compound. In such cases, the refering field and thereferred-to field must be compounded in the exact same way. However,this is not true in this case.
This case is technically difficult to process and is not yet supported.

System Response
In the registration: You cannot register field &v1&.

Procedure
Either adjust the definition of field &v1& or revoke the registration ofthe field.