How do I pass a value in a URL to populate a field in my form?

I am doing some split testing to test various landing pages. I would like to pass a value to a hidden field, so I can track the success of each landing page.

Gary

You can use Field Prepopulator app. Here's the link: http://prepopulate.jotform.io/.

If you want to do it manually, please check this guide: Prepopulating-Fields-to-Your-JotForm-via-URL-Parameters.

Hope that helps. Let us know if you need further assistance. Thank you.