If no changes have occurred in your tenant, a new snapshot will not be created. This is because the previously created snapshot will reflect the current state of your tenant.

Each time a backup job runs, it checks for any changes in your tenant, backing up all new and modified items and removing items that no longer exist. A new snapshot is then generated to include these updates. For data that remains unchanged, the snapshot simply references previously backed-up data. However, if there are no changes to any data, no new snapshot is created.

In such cases, even though a new snapshot is not created, the backup will still be marked as successful.