SAP Message UGMD420 - Error while replicating data - see long text

Diagnosis
For field &V1& an attribute was changed. Following the adjustment of theDDIC structures the data could not be replicated correctly in the BW.The synchronization processes terminates, usually with a short dump.

System Response
Processing is continued.

Procedure
Synchronize the master data of field &V1& manually (see also SAP Note689229).
Look through the list of runtime errors following anyshort dump and check if there are any relevant SAP Notes. If you do notfind a suitable Note, get in contact with SAP