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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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Where can I find the "Unique Question" in the new interface?Asked by emucoe on October 21, 2016 at 09:29 AM
You can find the "Unique Question" in the Preferences menu. This function will prevent duplicate values entered on the same field. Here's how:
1. Click the "Preferences" button in the toolbar.
2. Go to "Advanced" tab and you'll see the "Unique Question". Click the drop down and choose the field you prefer.
Please check the complete user guide here: How-to-set-Form-Limits-Based-on-a-Unique-Question
If you need any help, please let us know. Thank you.
Thanks for that!
You may then wish to clean up/update this older entry: https://www.jotform.com/answers/103755-How-to-Set-Up-Unique-Submissions-based-on-Email-field-or-any-other-field-in-the-form