Mailchimp integration is a pro feature and the settings are in the Extensions tab
This will only work if you are collecting names and email addresses and have the optin field enabled in the registration form or have selected the optout check box.
The list merge field used are: EMAIL, FNAME, LNAME, TITLE
Details on what you have to setup in MailChimp are here
Updated on April 20, 2026 · Need help? Open a support ticket