I am working on a new iOS app. It is not ready for publishing yet, but I want to distribute it via TestFlight for some external testing. I have added some in-app purchases to it, but the App Connect says that I must submit them for review together with the new version of the app. The problem is that I don't want to submit app for review yet, I just want to enable in-app purchasing in the TestFlight. Is this not possible or am I missing something obvious?