There are currently three notification types:
Push Notification
This notification will be sent directly to the user's mobile device and can contain pertinent text, instructions, or details. You can send push notifications to a single user or a list of users.
Call Webhook
Webhooks are "user-defined HTTP callbacks." They are triggered by the conditions within the alert. When those conditions occur, the source site makes an HTTP request to the URL configured for the webhook. Users can configure them to cause events on one site to invoke behavior on another.
Send Email
This notification type sends an email to a user or a group of users. Learn more about User Groups.