Hello, I have a quick question. I book all of my sons travel and have his mileage plus account number tied to the same email address as mine. When I make a booking his information is in my profile and I just clicked on his name and everything propagates. He has an upcoming international trip and his passport data is not saved with United.com. When checking in will I be able to scan his passport from my iPhone at the 24 hour mark? If so, would this affect my data in anyway. Well maybe the question wasn’t that quick. Thanks in advance and enjoy your travels