JetBackup 5 now has only 3 Alert levels compared to JetBackp 4. All 3 levels will appear on the JetBackup 5 Alerts Page, but you are able to adjust which levels are sent to your Notification Integrations.
The 3 Alert levels are Information (1), Warning (2), and Critical (4).
Information Alerts (level 1) include notifications about started + completed backup jobs, reindex, download, and restore processes and Plugin Updates.
Warnings (Level 2) include Partially Completed backup jobs, reindex, download and restore processes. This could also include other warnings, such as a Warning Alerts when a trial license is about to expire.
Critical (Level 4) alerts include failed/aborted/never finished backup jobs, reindex, download and restore processes. A license expired or a trial license expired will is considered a critical alert.
For more information on Alerts please visit: JetBackup 5 Alerts Documentation