User Profile

Hi, I'd like to submit my App for review for to allow external testing in TestFlight. The App itself should confirm to all App Store requirements (at least to my best knowledge), but is all the "metadata" required for TestFlight Review - so App description, Screenshots, Privacy Policy and all this in App Store Connect? I have not filled that yet and wanted to wait until the actual beta testing is done - in case some changes are made that would require update all of that otherwise. I hope I can get the TestFlight review without having to fill all that out for now...

Hi, as you need to get product information before you can initiate a purchase, I wonder if its ok doing it once when the app launches, or do I have to do it just before the purchase - like it will get invalid after a while...