Recovery scenarios
In certain situations, NexJ CRM and Exchange Server could get out of sync and you may need to perform some actions to recover synchronization.
Potential out-of-sync scenarios
The following are some of the situations in which NexJ CRM and Exchange Server could get out of sync. If appropriate, instructions for how to recover from such situations are included.
Blank NexJ CRM setup
Situation
You have a blank NexJ CRM setup because you have only just enabled Synchronization.
Action
Perform an inbound snapshot to populate NexJ CRM. For large data sets, this snapshot must be staged with updates to db stats in between.
First time enabling Exchange Synchronization
Situation
Both Exchange and NexJ CRM are up and running and you have just enabled Synchronization.
Action
Perform both an inbound snapshot and an outbound snapshot, during a low traffic period, to ensure proper Synchronization.
Info
If you enabled Batch Sync Setup this action may be unnecessary.
Exchange goes down; Synchronization is still enabled
Situation
The Exchange server has gone down although NexJ CRM is still running and Synchronization is still enabled.
Action
No action is required. NexJ CRM will catch up on its own by retrying each item when the Exchange server comes back up.
Exchange goes down; Synchronization has been disabled
Situation
The Exchange server has gone down and Synchronization has been disabled; NexJ CRM is still running.
Action
Re-enable Synchronization and, when the Exchange server is back up, perform an outbound snapshot.
NexJ CRM goes down; Synchronization is still enabled
Situation
NexJ CRM has gone down although Exchange is still running and Synchronization is still enabled.
Action
No action is required. NexJ CRM will catch up on its own.
NexJ CRM goes down; Synchronization has been disabled
Situation
NexJ CRM has gone down and Synchronization has been disabled; Exchange is still running.
Action
Re-enable Synchronization and perform an inbound snapshot.
NexJ CRM and Exchange go down
Situation
Both NexJ CRM and Exchange have gone down.
Action
No action is required. NexJ CRM and Exchange will stay in sync.
Synchronization has been disabled
Situation
Synchronization has been disabled.
Action
Re-enable Synchronization and perform an outbound snapshot followed by an inbound snapshot.
Exchange goes down and is rolled back to an older backup
Situation
Exchange goes down and is rolled back to an earlier version.
Info
This situation also applies to individual mailbox
Action
Perform an inbound snapshot.
Info
If Synchronization was disabled, perform an outbound snapshot as well.
NexJ CRM goes down and is rolled back to an older backup
Situation
NexJ CRM goes down and is rolled back to an earlier version.
Action
No action is required. NexJ CRM will catch up and stay in sync as long as Synchronization was not disabled during this process.
Data integrity loss
Situation
Your data has been lost or has become corrupted.
Action
Clean one of the systems and then perform a full snapshot to restore the data.