Customer.io helps you expertly personalise and automate your customer communication. Gleam integrates fully with Customer.io so you can easily and effectively collect emails from customers and start delivering messages.
You can enable Customer.io Integration on the Pro plan & above. Simply navigate to Settings > Integrations then turn on Customer.io.
You will then need to add your site ID, Tracking API key, App API key & the default triggering event.
Refer to Customer.io's documentation for managing your API credentials.
Once you've activated your integration with Customer.io you can now use Subscribe actions to send mails to any list that you want.
In order to test if emails successfully send to Customer.io you need to do the following: