For testing permission response we can use the sandbox account
However, when testing permission requests using the AskCenter API, none of the ask API works for me in xcode 26.2 rc and iOS 26.2 rc.
For SignificantAppUpdateTopic, I got errors like "The user is in a region that does not support this type of ask" in the console log, but I've already set my billing address to Texas.
For CommunicationTopic, the console shows several XPC-related errors, and I’m not sure which of them are relevant.
Both of them show an alert view of "Can't ask, An unknown error occurred"
Can someone help to guide us how to test the request flow?
Thanks