WARNING: [2576-142-54-00000000] NMEObjectGUID 8525723E-0013-C4D1-8625-74DB005CAB8B is locked, data store owner updates will not be processed
is seen in the log files while "Locate Notes Data Stores" is being run.
The table is being locked.
RESOLUTION 1
Verify Locate Notes Data Stores is running against the object in question on only one migration console at a time.
RESOLUTION 2
1- Point the job to a location where the user does not have addressbook or mail database. This will release the lock
2- Point the job back to the correct location