Diagnosis
You have attempted to change the tax objecthierarchy &V2&.

System Response
This hierarchy is currently being edited by another user and istherefore locked (by an ENQUEUE lock).

Procedure
Wait until the other user has finished.
If the ENQUEUE lock remains as a result of a mode termination or due toother serious problems in the lock administration and no other user isediting the object, you can delete the lock using Transaction SM12.This operation is logged by the system.