Natural System Error Messages 2651-2700

NAT2687: Source field for sub-/super-descriptor not in DDM.

Text
Source field for sub-/super-descriptor not in DDM.
Explanation
The field specified in the sub-/super-descriptor definition is not
defined as field in the DDM. The sub-/super-descriptor is only
allowed to refer fields defined in the DDM.
Action
Check source field names of the sub-/super-descriptor.