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 to avoid multiple responses from the same user?

    Asked by FLACRA on September 08, 2016 at 03:21 PM

    Is there an option for surveys to ask participants to enter a one-time key code, to avoid receiving multiple responses?


    Thank you.

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    JotForm Support

    Answered by Kiran on September 08, 2016 at 04:44 PM

    I understand that you want to avoid duplicate form submissions from the same user. If so, you may consider using the Unique Submission or Unique question feature from Advanced section of the form preferences. Unique submission can restrict duplicate submissions receiving from the same IP or PC and Unique question can restrict the same entry in the selected field to avoid duplicate submission.

    Hope this information helps! Please get back to us if you need any further assistance. We will be happy to help. 


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    Answered by FLACRA on September 09, 2016 at 03:11 PM

    Hi, thank you for your response. What if we wanted to allow people to take our survey at a shared office location? Would that prevent the IP/PC duplication method from working? Thanks.

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    JotForm Support

    Answered by Kiran on September 09, 2016 at 04:41 PM

    In case of you want to receive the submissions from the same location, you may enable Unique question only while leaving Unique Submission option disabled.

    Hope this information helps!