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.

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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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    Unique submission by field rather than IP

    Asked by wowometry on May 24, 2010 at 09:26 PM
    My forms require people to enter a name - is it possible to develop a feature where form submissions must be unique according to this name rather than according to IP address? I'm concerned that two people sharing the same internet connection would have problems trying to submit forms. Another form builder has the feature, but I prefer Jotform's service plans to other form builders, but must soon make a decision as to which service to pay for.
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    JotForm Founder

    Answered by aytekin on May 25, 2010 at 01:38 AM
    JotForm has a feature to check uniquness by cookie and IP address. If you check by cookie then people who use the same IP address can still make submissions. You can enable the cookie check by selecting "Loose Check" on Preferences.



    I also added your request about the uniqueness validation to our suggestions list.

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    Answered by MarleenDG on September 16, 2010 at 04:54 AM

    Unique submissions by field rather then IP/cookie is also the solution for my problem.

    I am looking for an easy tool to create forms, which can be used for internal questionnaires en subscriptions for events.  People have to be able to make changes to there subscription after it is submitted.  The mail with update link is only part of the solution, because the user can still create a new subscription. The IP-adres is not a good reference for uniqueness, because people can log in from different locations.

    Is there a way we can make sure that someone does not subscribe more than once for the same event ?

     

     

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    JotForm Founder

    Answered by aytekin on September 16, 2010 at 06:26 AM

    Unfortunately no, it is not possible have unique fields for all submissions. I added this to our feature requests list.