New Users

Get Started

Learn about Customer.io and start using the platform

Add People

Identify the people you want to send messages to

Send a Message

Set up your first campaign and send messages

Advanced Users

Add Message Types

Send SMS, push, and Slack notifications

Use Liquid

Personalize messages with data in or out of Customer.io

Set up Webhooks

Call an API and incorporate outside data in your campaigns

Developers

Rest API

Write your own back-end integration

Use a Library

Use our JS snippet or libraries to facilitate your integration

Integrations

Get data from, and send data to, your backend systems