Alerts, also called notifications, are messages sent from the CalAmp system to inform users of certain asset/driver situations (as a result of event triggers from your assets' devices), such as a warning about a low battery or a missing CalAmp Tag. Geofence events occur when your assets enter and exit your designated geofences (areas of interest to your organization, such as job sites or vehicle yards, around which you draw geocoded borders). Both alerts and geofence events send notices to the CalAmp application.
In legacy iOn, there were two separate drop-down panels you could access to view your alerts and geofence events, using their icons in the site banner. In the current version of the software, there is only one panel, Notifications.
Note: It might seem like the two legacy panels have been combined into the new Notifications panel, but that's not accurate. Instead, the legacy Geofence Events panel has not been carried over to the new version of the CalAmp application (and the Alerts panel was renamed "Notifications"). To view your geofence events, go to the Geofence Events screen. (See Viewing Your Geofence Events.)
You can, of course, see geofence event alerts in the new Notifications panel if you have specifically added those notifications via Admin - Notifications (Admin - Alerts in legacy iOn). The alert types to use for those are Geofence Event, Geofence Event by Asset, Geofence Event v2, and Geofence URLPOST Event.
Be aware that geofence alerts are triggered only for assets in the group they are assigned to (or their child groups, if the notification is set to be inheritable) — NOT for their parent group or any other groups higher in your organization's hierarchy.
Note: In addition to the Notifications panel in the banner, there is a Notifications Events screen that lists all your reported alerts. See Viewing Notifications and Marking Them As Read for details on how to check your notifications and acknowledge that they've been seen (and, if necessary, handled).