Hi Everyone,
I am having a major issue with the Apple Test Flight application.
When I reinstall the application while signed into my Apple ID and try to hit “Continue” at the bottom of the introductory page I get the following error message and am unable to proceed further to access all of my registered Test Flight betas:
“ TestFlight Unavailable Device vendor ID is missing or not available. Try again. “
I have an iPhone 13 Pro Max running on iOS 16.4.1 (a)
Please let me know what to do to fix this issue so that I can continue using Apple TestFlight again and help developers test their applications.
Thank-you,
Shawn