You can check to see when each user last connected to the Mobility Connector. For instructions, see Auditing User Synchronization Activity
in Connector and User Management
in the Novell Data Synchronizer System Administration Guide.
If a user has not connected to the Mobility Connector for 30 days, the nightly maintenance process automatically removes the inactive mobile device from your Synchronizer system. For more information, see Section 3.12.2, Configuring Automatic Nightly Maintenance.