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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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    Matrix Field: How to ensure that all input answers are unique per submission

    Asked by MarkSir on January 26, 2016 at 03:42 AM

    Students have to rank 76 subject groups and each subject group can only be chosen once. 

    In each field, they have to use a code. They need to type in instead of using a pull down menu as with 76 choices, the pull down menu will become to long.

    Page URL:
    https://form.jotform.me/52880365159463

    matrix field unique value orderable list
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    JotForm Support

    Answered by Mike on January 26, 2016 at 10:57 AM

    Unfortunately, we do not provide unique value validation option for a Matrix field type. We would like to recommend you to stick with the Orderable List widget.

    If you need any further assistance, please let us know.