Customer.io

What can we help you find?

Customer.io is a platform for sending automated messages — email, push notifications, in-app and web messages, SMS, Slack, and webhooks — driven by the profile and event data you send it. These docs cover setting up a workspace, getting your data in, grouping people into segments, building automations, designing and sending messages, and reading the results. They also cover the REST APIs, mobile SDKs, and data pipeline integrations you use to connect Customer.io to the rest of your stack. If you're new, start with the quick start guide.

Get Started

Set up your workspace, get your profile and event data into Customer.io, group people into segments, and send your first automation.

Platform overview
Learn the basics of Customer.io.
Quick start guide
How to get up and running ASAP.
Profiles
Integrate, import, or manually add profiles to your workspace.
Segments
Group profiles based on their attributes or behaviors.
Objects
Relate profiles to non-profiles data.
Events
Track customer behavior.
Send a newsletter
Broadcast a message to a group of customers.
Create an automation
Craft an automated workflow to send people messages and perform other actions.
Metrics
Track the performance of your marketing efforts.

Message channels

Set up each channel you send on, and learn what it can do — email, in-app and web messages, push notifications, SMS, Slack, and webhooks.

Email
Send email messages.
In-app
Send web or in-app messages.
Push
Send push notifications.
Webhooks
Send and receive data with webhooks.
SMS
Natively send SMS with Twilio.
Slack
Send messages and notifications to Slack.

For developers

Send data in and out of Customer.io with the REST APIs, the mobile SDKs, data pipeline integrations, and reporting webhooks.

Integration guide
Learn how to send data in and out of Customer.io.
API reference
Integrate your data.
SDKs
Integrate your mobile app.
Reporting webhooks
Send metrics to a third-party service.