With GDPR just around the corner, I’m reviewing all data collection points for a client.
We need to add an explicit Mailchimp optin to all our EE registration forms. We’ve added it as a question. So far so good, but I don’t see any logic that will allow us only to add the user to a Mailchimp list, IF the checkbox is selected (as we do with Gravity forms logic).
I’m afraid that this is not available currently. There is an open ticket for the developers to include a MailChimp opt-in directly within the registration form, but doing so will require a major code refactor.