I submitted an app for beta app review. My app uses passkeys exclusively for registration and auth, so in the reviewer instructions, I said as much. The onboarding flow asks for three bits of info, and then attempts to create a passkey. I told the reviewer they could make up whatever they liked for those fields.
My app was rejected with "We have started your beta app's review, but we were unable to successfully access all or part of the app. In order for us to continue the review, we need to have a way to verify all app features and functionality. Typically this is done by providing a demo account that has access to all features and functionality in your beta app."
It then goes on to tell me "To help us proceed with the review of the app, please provide a user name and password in the Beta App Review Information section of App Store Connect."
It is not possible to provide webauthn credentials like this. I replied to their message accordingly, but I have yet to hear back.
Has anyone else run into this?