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There are three major ways to send messages in Customer.io. Watch this video to learn when to run a campaign, send a broadcast, or trigger a transactional message

Choose your path: campaigns, broadcasts, and transactional messages

People and events are your data in Customer.io.

Understand your data: people and events

Integrate with our client-side JavaScript integration in just a few minutes, to bring data into Customer.io *and* send your audience in-app messages.

Integrate with our JavaScript client