Ok iPhone fan boys, need some help and advice. My in-laws have had iPhones for years. My father in-law had used his Apple ID for both phones. Just upgraded from iPhone 7s to iPhone 11 max pro. Have both phones setup and can’t use all features due to same Apple ID. If I create a new Id after both phones are setup, sign out of the one iPhone and sign in with newly made Apple id, all contacts and iMessages will stay? I know I’ve seen merge options, etc.... Can anyone help or ask more questions for clarity!!! Thanks, Josh Sent from my iPhone using Tapatalk