SAP Message BP478 - Chart of commitment items &1 is locked in year &2

Diagnosis
The specified chart of commitment items or the commitment itemhierarchy in the original FM area is currently being used by anotheruser and is blocked for further access.

System Response
A copying of the euro FM area is not possible.

Procedure
Restart the copying of the euro FM area when all users have exited themaintenance transaction for commitment items in the original FM area tobe copied.