Diagnosis
You want to maintain a relationship to fields &v1& and &v2&. Field &v1&belongs to the subcommunication structure &v3&. This is not compatibleto the subcommunication structure &v4& for field &v2&.

System Response
The entry is not permitted.

Procedure
Only create relationships between fields that are the same (forexample, header-header) or compatible (for example,header-mixed(Header->Item)).