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Prevent multiple runs

This is a really quick one:
Is it possible to prevent participants from running the experiment a second time?
As I will redirect participants from an external survey tool to pavlovia, I could pass a unique ID.

Thanks!

I have a couple of tools which are designed to launch Pavlovia with consecutive participant numbers. One of them definitely has an adaptation to increment the session number and maintain the participant number. You could potentially use that to halt the experiment if the session number is greater than 1

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