I have an issue where performing a 'POST' request fails with a 400 when done on a device running iOS 16, but succeeds with a 200 on devices running iOS 17. I have not been able to find any explanations for this behavior. I've checked the request on both versions and it's identical in both versions of iOS, as far as I can tell.
BodyStream : JSON object data
Headers : Content-Type:application/json
TimeoutInterval: 900
ccompton-ip
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I have a beta tester signed up for TestFlight. They originally accepted the invite using both the wrong Apple ID and wrong device. We want to change the device and Apple ID they are using.
I had them open TestFlight on the wrong device, select our App and select "Stop Testing". I've also removed them from the test group.
I've then waited for 24 hrs and re-added them to the test group using the same email as before. Their status is "Invited".
However, they keep getting the error
Couldn't redeem TestFlight invitation code ""
This invitation has been revoked or is invalid. Request a new invitation from the developer.