Deactivating a service
If needed, you can deactivate one or more of your SaaS Backup for Office 365 services. If you deactivate a service, all of the schedules associated with that service are removed and no further backup is performed. You can still view the last backup that occurred before deactivation and you can still perform restores.
Click from the left navigation pane.
Click the Microsoft Office 365 link.
Click next to the service that you want to deactivate.