Two important features and concepts in Courier are Channels and Integrations. Channels and Integrations are related, but separate things in Courier that work together to allow you to build and deliver notifications to your users with a single API call.

A Channel is a notification category or type. Courier allows you to build notifications for four different Channels: email, direct message, SMS and push notification.

In order to send notifications via a channel, you must add one or more integrations. You can prioritize the send order of the channels and set conditions to disable them.

Integrations are the service providers you connect to Courier so that it can send your notifications. Rather than replacing your existing providers, Courier passes your Notifications to the providers you already use via these channel integrations. This allows you to create and manage notification content across multiple service providers in one place.

See the list of providers that Integrate with Courier.