“MC4WP: Mailchimp for WordPress” plugin integration – AJAX login registration modal Docs

Let’s see how to integrate the MC4WP: Mailchimp for WordPress plugin.

Make sure that in the Interations menu “Registration Form” is active:
Click on the “Registration Form” and check settings.
Implicit should be set to “No”.
Also select your list & edit the checkbox label.
Important note, due to the MC4WP plugin code the checkbox will be added to the only first form on current page. So if you have more that 1 form on the page needs small hack:
Add this HTML

Here

The result: