Today I uploaded a new build from Xcode to try the new TestFlight external testing program. After I submitted the beta app for review it was rejected because of "Undeclared Use of Advertising Identifier [IDFA].
I know I'm using the IDFA for ad tracking, and I have no problem declaring that, but the TestFlight submission process has no place to declare this. When I've submitted to the real app store there were questions I answered about the IDFA, but it seems the External Testing review flow does not have the same questions. It only asked about Export Compliance then I submitted.
Tried uploaded a new build and had the same problem again. Something I'm doing wrong or bug in Apple's new flow? Anybody else seeing the same problem or worked around this?