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.

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    How can I check if an entry is already in the results

    Asked by MoovitCarpool on July 17, 2017 at 09:43 AM


    I'm using a form to track users my support team bans from a system. The first form field is a user_id which is a unique identifier in my system.

    Is there a way that when an agent enters this key - before allowing submission, the form checks the list of form responses for that field and if there is a match, not to allow submission?

    In the attached screenshot, this is the field "User Key".

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    JotForm Support

    Answered by liyam on July 17, 2017 at 11:47 AM


    You can set one of your fields on our form for Unique Question. This way, it will identify if the answer for a specific field was already submitted previously, and it will prevent the submission of the same information anymore.

    Please check this guide for more information: https://www.jotform.com/help/223-How-to-set-Form-Limits-Based-on-a-Unique-Question

    If you have additional questions, please let us know.