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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    preventing dual or multiple submission

    Asked by geomat on June 07, 2012 at 04:26 AM

    preventing dual or multiple submission

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    Answered by geomat on June 07, 2012 at 04:59 AM
    Thanks. You may receive response from GEOMAT2012 committee later on.
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    JotForm Support

    Answered by mliz on June 07, 2012 at 04:59 AM

    You can enable strict check to limit submissions for every IP address. For more information on how to set this up please visit the following guide:

    http://www.jotform.com/help/64-What-does-Unique-Submission-Mean

    Thanks!