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 can I prevent submissions with the same entry?

    Asked by BlitzSports on February 17, 2015 at 07:40 PM

    I've gone to form limits and chosen a field to not allow previously entered data. However, when I tested to make sure it would work, it still allowed me to enter the same data into that field and successfully submit. I want to cut down on submissions by limiting nominations for the same person on a form

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    JotForm Support

    Answered by jonathan on February 17, 2015 at 09:37 PM

    I can see that you have correctly setup the Strict IP Address Check for Unique submission of your jotform http://www.jotform.us/form/50475758093161


    When I test submitted the form, I was able to see the strict/unique submission working.



    I can no longer submit the same form the 2nd time around


    There are cases when IP checked will not work on some network. Like those network that assign random IP address, or configuration that block IP checked.  This is usually the possible reason why this feature will not work.

    Can you confirm that you were able to reproduce the issue on your own network? Or was it from a different user of your form.

    Please inform us if issue persist.