TestFlight “Code has expired” error - what to do?

Hey there, so if you have a TestFlight invitation code, you can encounter the "Code has expired" error message. What's going on? Some users have reported that changing the clock from 24 hours to 12 hours in iPhone settings may sometimes resolve the issue for some users. However, for others, this workaround doesn't work. Here are steps to try:

  1. Change the clock from 24 hours to 12 hours in iPhone settings.

If the above step doesn't resolve the issue, a user suggested the following approach to fix the problem:

  1. As a developer of the app, ensure your account is registered as an internal and external TestFlight tester.
  2. Remove yourself from the list of internal and external testers.
  3. Add yourself back only as an internal tester.
  4. Obtain a new TestFlight redeem code.
  5. The issue should be resolved after following these steps.

It seems like there have been various bugs with the TestFlight app over the last seven years and new issues are arising. If you faced a similar problem and resolved it differently, feel free to share your experience in the comments section.

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