How can I send a hidden field when a user subscribes?
Example:
I have a mailchimp list with a lot of existing customers' mails.
I want to complete this list with subscirption form my website, but I want to be able to segment my own customers and the "leads" from website.
I add a field named "websubscription" in mailchimp and I want this field to be automatically filled when the user subscribes.
How can I build my subscription form in order to hide that field to the user but populate it anyway in mailchimp?
Thanks for your help and sorry for my "frenchglich"
Philippe
