When you establish a peer relationship between management consoles, you have two options for processing user accounts:
You chose the synchronize option. The maximum number of user accounts for a management console is 100. The synchronize option has failed because there are more than 100 unique user accounts on the management consoles in the peer relationship that you are attempting to establish.
Remove the peer relationship between the management consoles. Establish it again, and select either the overwrite option or the synchronize option. If you select the synchronize option, first remove a sufficient number of unique user accounts to ensure that you do not exceed the maximum of 100 unique user accounts.