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Courier simplifies triggering and sending notifications from your app with one API and drag and drop UI. With a single API call, you’ll be able to create a new user profile inside Courier followed by a welcome message to send to this newly created user. The Courier Automations API allows you to build such workflows and quite literally “automate” your notifications. The Automations Guide has a detailed walkthrough of all the cool features unlocked via Courier’s Automations.