Welcome to Customer.io

Quick start guide

Academy: structured learning

1. Create your workspace

2. Set up message channels

3. Integrate with Customer.io

4. Add profiles

5. Send events and make segments

6. Start sending automations and workflows

Use Customer.io with AI

Your Customer.io agent

Customer.io CLI

Customer.io MCP

Email content analysis

In-app message suggestions

In-app survey analysis

Use our docs with AI

Introduction to messaging

Profiles & events

Objects & non-people data

Message channels

Liquid & personalization

Integration directory

Quick start guide Understanding integrations in Customer.io Troubleshooting Data compliance and privacy

Introduction Source specs Custom events Semantic events Backfill historical data Proxying requests to Customer.io Connections

Getting started Add a data-out integration Actions Action triggers: code mode Database/warehouse integrations Filtering and mapping actions Resend past data Connections

Pipelines API Track API App API Reporting Webhooks Comparing the Pipelines and Track APIs

iOS Android React Native Expo Flutter

Settings & Billing

Account verification

Tasks: workspace performance

Privacy & security

Troubleshooting

✨ Latest features

Send transactional WhatsApp messages Aug 24, 2026

You can now trigger one-to-one WhatsApp messages—like order confirmations, appointment reminders, and verification codes—from your application using t…

Support in-app messages for multiple mobile apps in the same workspace Aug 21, 2026

If you have multiple mobile apps with overlapping audiences, you can support both apps in the same workspace. When you send an in-app message, you can…

Use Customer.io AI in Slack Aug 18, 2026

The Customer.io AI agent now works in Slack. You can @Customer.io in a thread to ask it questions about your data and workspace. Or you can message…

View all releases →

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Release notes › Our SDKs support Firebase v11

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Releases

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← Release Notes

Our SDKs support Firebase v11

October 15, 2024 Mobile / Sdk

iOS SDK 3.4.1 or 2.14.2
React Native SDK 3.9.1
Flutter: follow our instructions to update your iOS Native dependency version 2.14.2.

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