Hey guys--I have a mailchimp list. The users in this list are not "registered" users on the WP site (don't want them to be). I am sending out an event invitation to these 200+ people. I would like the user to be able to go to landing page with GF to RSVP for the event and Confirm their contact information--we are having them print a virtual ticket (email confirmation).
I would like to be able to do this by setting up a multiple paged form:
Page 1) Ask User to enter/verify in their email address.
If email is a part of the Mailchimp List, then:
Page 2) Based on their address GF dynamically populates their Name, Title, Company...etc., etc.
else; stay on Page 1 with "error"
I know I can populate the fields by passing variables
http://siteurl.com/form-url/?your_parameter=value which I can easily generate from the mailchimp email. However, I am not sure how to do the initial validation with this method (other than manually entering in the email addresses for conditional logic). I would also like to allow people to be able to access the page without having to use the link from their email--thus, verifying their information against the list vs. against the URL passed from the mailchimp link.
I am at a loss on how to get this going--any ideas or sources I could be pointed to would be great.