This article covers guidance for the PEC-SUB-0010 error message. You can find guidance for our other error codes here: PEC Errors.

What does it mean?

When a participant tries to take part in a study but user data is missing from their request

Why did this happen?

This error may occur if you're not using the Prolific webpage or Prolific Assistant to reserve or start studies. This error may also occur because Prolific hasn't been refreshed recently.

What can I do?

Refresh the Prolific app to ensure you have the most up-to-date version, and attempt to join a study manually through the Studies page.

What if I'm still receiving this error?

If you are still receiving this error after refreshing the app, please contact support by clicking the button below.

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