Hello @UCCR.1 ,
Make sure the UP form is turned on in your Account Settings, or it will not show in email footers as an option. There is not a way to provide an exact URL for it, nor to add it to the email body at this time. It's still a specially coded link that is based off of your account and the receiving contact, and doesn't populate until actually sent in a live email. As such, the UP form doesn't function in test emails, similar to the unsubscribe link it will only populate once the email is actually sent out.
... View more