Mailchimp

I have published thr Mailchiiiimp plugin and added my API key and the list to the membership form.  I have added a custom radio field - as I want people to have a choice of whether or not to be added -  but I don't seem to have the connection finalized.  What more do I ned to do?

You should not have to create a custom field to allow users to choose like that. Better use the built-in option docs.joomdonation.com/membershippro/basic-setup/gdpr

Tuan