How can I identify participants by name, phone number, or other ID

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3 years 10 months ago #97388 by niceseschea2722
niceseschea2722 created the topic: How can I identify participants by name, phone number, or other ID
Im currently using version 1.92
i had create a simple survey with 10 question and at the final page, it require participant to fill up some personal details.
im wondering how can i add validation to prevent repeated participants by name, phone number and ID ?
any advice will be much appreciated.

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