You can enable a toggle in your form settings to ensure each respondent submits your form only once. This helps prevent duplicate submissions, resulting in more accurate and reliable data.

<aside> <img src="/icons/gift_green.svg" alt="/icons/gift_green.svg" width="40px" /> Preventing duplicate submissions is a free feature available to all Tally users.

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How it works

After publishing your form, turn on the Prevent duplicate submissions toggle in your form settings. The setting is in the Access section.

Select a unique identifier field (such as IP address, email, Respondent ID or any other form field), which Tally will use to detect and prevent duplicate submissions.

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Whenever Tally detects a duplicate submission attempt, the respondent will see this error page pop up, preventing them from submitting the form.

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An example

You have a registration form with an email input field, and you select it as the unique identifier.