Matching forms to visitors who later become users

If a visitor completes a form on my site (not a registration form) and then sometime later becomes a member what is the best way I can link (either manually by an admin or automatically) that form to them. Is it a case of having an admin only field that I put the user into once they have joined?

Many thanks

You would want to add a Hidden User ID field in the form. Then once the visitor becomes a member, you can go back to their "visitor" entry and select the member/user in that user ID field. That will assign the entry to that user. Unfortunately, I don't know of a way to do this automatically.

That's great thanks.

Topic closed.