Analyzing of Locking Conflicts 
On the Locking Conflict tab page, the system displays the selections for the last lock conflict. The system displays the following information about the context of the caller:
InfoProvider
User who requested a lock
User with lock (user who has already locked the selection).
Date and time of the lock query in the system time
Whether or not the lock conflict occurred with a master lock
To identify the cause of the lock conflict, compare the selections in tables Selection in Lock Request and Locked Selection. The lock conflict occurs where selections overlap.