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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    Getting multiple submissions in my forms

    Asked by 417smiles on May 08, 2017 at 04:41 PM

    So why would this happen?  We are a marketing company and we have several Jot Forms for several clients and they are all starting to get multiple submissions from the same person.

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    JotForm Support

    Answered by jonathan on May 08, 2017 at 06:13 PM

    If you want to get only unique submissions on your form and prevent the same person submitting the form, you can use the Unique Submission feature of the form.

    User guide : https://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form

    I checked also your form and I see it was already using Captcha field. The Captcha will prevent already any spam only submission on the form.

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



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    Answered by 417smiles on May 09, 2017 at 10:56 AM

    So this is the only way to prevent this?

    Do you have any idea on why this happens?  Does the user's web browser submit again automatically?  I just don't have any understanding of why or how the same submission could get submitted again with out the user doing so.

    One of our website owners has followed up with one of his users who swears they only filled the form out one time. 

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    Answered by 417smiles on May 09, 2017 at 10:58 AM

    If we turn on unique submissions, what happens when that same IP Address and browser needs to use the form again?  Our website owners won't get those?  Will Jotform not allow it?

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    JotForm Support

    Answered by david on May 09, 2017 at 12:20 PM

    Some browsers cache form data and if a user presses the back button on their browser to return to the form or another page, they may return to the submit page again.  This tends to happen most often on IOS devices from what I have seen.  Unfortunately, there is no way for us to prevent this browser behavior on our end.

    If you enable unique submissions, it will prevent submission of the form if it is not a unique submission.