Start the Spotlight Cloud Diagnostic Server -> Home -> Alarms -> in the “Configure Alarms” search box type in “backup” and click on the Edit button of the “Backup – Days since last full backup” option
Once in the “Backup – Days since last full backup” window click on the “Add exclusions” button and type in the name of database you want to be excluded, i.e. not to receive this alert for -> click the
OK button to save latest configuration: