Prevent multiple submissions with the same person.

I want to avoid duplicated submission from several people in the same group, with the use of password, any other way to do it?

Hi adfortunec,

Thanks for reaching out to Jotform support. Unfortunately, I need a bit more information about your concern. What do you mean by duplicated submissions from several people? Were there any duplicated submissions by your client? Is it multiple submissions from one client? If so, you can set up your form to unique submission where the person can only submit your form once. You can find the instructions here. Let me walk you through it:

• In Form Builder, in orange navigator bar, select Settings.
• Click on Show more options.

• Scroll down to see Unique submission.
• Set it to your preferred option. 

Here are the options and its meaning:

• No Check — This option means the form will not check for duplicate submissions.
• Check Cookies Only — This option is also called Loose Check. When you choose this option, the form will check whether the submission came from the same browser. It uses cookies stored in the user’s browser’s storage to verify duplicate submissions.
• Check Cookies and IP — This is also called Strict Check, which means the form checks whether the submission came from the same browser and IP Address.

Give it a try and let us know how it goes.