Can the sign up form be pre-filled?

Yes, you can easily pre-fill the sign up form on behalf of your users. Simply add some query params to the URL when you redirect them to the GunTab sign up page. You can provide any of these values:

  • user[first_name]
  • user[last_name]
  • user[phone_number]
  • user[email]

Example

Click this link to see the input fields be pre-filled:

https://www.guntab.com/users/sign_up?user[first_name]=John&user[last_name]=Wick&user[email]=jwick@example.com&user[phone_number]=555-666-7777

Last updated 4 Nov 2025