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.