External link requirement before submitting

I want to require people to click on an external link (signupgenius) before submission.  How can I do that?

To my understanding, you want the user to click the link before submitting the form. Unfortunately, there's no Required feature to external link you added to your form. You can try redirecting the user to the page after clicking the Submit button. Here's a guide: https://www.jotform.com/help/211-Setting-up-the-Thank-You-Page

I hope this information helps. Let us know if you need further assistance.