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.

  • Profile Image

    Appointment slots widget: How to prevent two same submission

    Asked by AU5T1N on January 21, 2016 at 09:13 PM

    If 2 users have the form open at the same time they can select and submit the form with the same selection even if it is not allowed is there any way to prevent this?


    You can see i was testing this out with two of us and when we hit submit the form allowed two of the same submissions even though it should not have. Is there anyway to prevent this???

    Page URL:

  • Profile Image
    JotForm Support

    Answered by beril on January 22, 2016 at 04:17 AM

    I've cloned and tested your form with my colleague @Mert. When I checked the submission it seems empty.

    To solve this, you can space out between number and curly brace as you see below.

    We would appreciate it if you could test it on your side and let us know the result.

    I hope it works.

    If you have any question or issues, please do not hesitate contacting us. We will be glad to assist you.