Error. Your service has been interrupted, and you must act on this alert immediately.

Severe. You must act on this alert as soon as possible. If you do not act by the date given in the alert, it will be upgraded to Error and you risk interruption of your service.

Warning. This alerts you to future events that might affect your service – for example portal outages, or license expiration.

Information. This might be announcing a new release or upcoming maintenance work.