What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.


  • Profile Image

    How can I validate if the email address has been entered already in the form and change the thank you page redirection?

    Asked by vrk59er on April 27, 2015 at 07:45 AM

    Hi Support,

    I want to set condition when users type  their emails in the form, If  email that is  duplicated that swith to another form. I looked in conditions of form. There is no duplicate email.

     

    What are a solution?

     

    Regards,

    duplicate email and email another
  • Profile Image

    Answered by raul on April 27, 2015 at 11:22 AM

    Unfortunately, this is not possible to accomplish using the form builder.

    On this scenario, you could use the API to lookup if the email has been entered already in the form and a custom script in order to make the redirection in case the email address is found.

    You should also check this guide: http://www.jotform.com/help/213-Send-POST-Data-From-JotForm-Using-PHP-in-Custom-Thank-You-Page to see how you can pass the email value to a PHP script that you can use to make the validation and redirection.