Hi guys, need some help here, how do I get the URL link for my sign up form ? I am using a custom sign up form that I created, but I have no idea how to get the link for it.

Basically I'm going to do a campaign, and when people comes to that campaign, I want them to sign up so I need to put the link into the URL box, but can't find the sign up form link either way. Appreciate some help !