Please share if you have found a workaround to prevent multiple submissions from the same person.
Oh, this would be incredibly useful! Bookmarked!
Indeed! Looking forward to seeing some of our genius users figure that one out!
There’s no real workaround for this one, but there are a few options for identifying duplicate submissions.
The easiest one is by comparing the IP address of submissions - it’s not a perfect solution (people might use the same VPN or be sitting in the same office).
The other method we’ve seen some savvy users use is to prefill a unique ID into a hidden field. That way if a person refreshes the page and submits it again, they’ll still have the same value for that hidden field.
I like the last method. It won’t defeat more motivated adversaries given that it’s right in the URL, but certainly helps weed out quite a few people.
What dean said above is exactly how we do it. When we want to prevent multiple survey submissions, we attach a unique id via Hubspot and are clear that if they share their survey link or have multiple submissions, they will be disqualified.