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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    Can I set unique identifier for a certain field to prevent same record be submitted

    Asked by cgskillaccounts on July 27, 2016 at 01:38 PM

    To prevent duplication of data by setting unique identifier on certain field (matching) in stored database of previous submissions to prevent duplicated records. Google Forms can do it. Can Jotform do this? How?

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    JotForm Support

    Answered by Mike on July 27, 2016 at 02:43 PM

    Yes, this is possible with a 'Unique Question' option in JotForm. Please follow the next guide.

    How to set Form Limits Based on a Unique Question

    If you need any further assistance, please let us know.