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

    how to make "unique" user

    Asked by vicbongiorno on April 01, 2016 at 07:09 AM

    Hello, goodmorning
    how to make "unique" user and refuse registration imformig she/he is already registered? Maybe adding property to Mail address? Thanks Vic

    unique Make how thanks hello and
  • Profile Image

    Answered by Carina on April 01, 2016 at 11:23 AM

    It is possible to have a field accepting only unique values.

    You can select preferences > form limits > unique question > select the field you want to make unique:

    Let us know if we can assist you further.   

  • Profile Image

    Answered by Carina on April 01, 2016 at 11:27 AM

    In addition, if the user tries to use multiple times the same value he will get this error screen:

    The message can be edited on preferences > advanced settings > edit form warnings:

     

    Let us know if we can assist you further.