I want new users who sign up to be automatically added to my mailchimp list. I have the mailchimp listserv parameters correcly configured in S2member - as a test, the optin checkbox appears in both the default wordpress registration form (/login?action=register) and in the S2member Pro registration form.
However I’m using a third party registration form which looks better as a popup. But for some reason the optin box is not showing in the form, and as a result new users are not auto subscribed to the mailchimp list. I tried manually adding HTML for the optin checkbox to the 3d party form (copied from the default wordpress form), but no cigar.
Any suggestions ?
Thanks