Diagnosis
You have attempted to edit object &V1& &V2& which is currently lockedby user &V3&.

System Response
The system has rejected your action.

Procedure
Contact the other user.
The lock entry may have been set by mistake. You can delete incorrectlyset entries using transaction SM12 "Select lock entries". Do this onlyif you are absolutely sure that the lock entry has been setinadvertently.