What would happen if I was to log out of my Apple ID account on my iPhone?

I have 2 Apple ID accounts and I was wondering what would happen if I logged out, would the phone sort of like restart or would I have to delete everything from it just to log into the other account? ( sorry if it's a dumb question )

The phone would not restart and you wouldn't have to delete anything. Everything saved in iCloud or iTunes with that appleId account will go off your phone but as soon as you log back in it will be there. I recommend backing up your phone to your computer, then logging out of your Apple ID then log into the new one, and then load the stuff from your old Apple ID onto your phone through plugging your phone into your iTunes

My iTunes won't back up my phone but i have over 50gb free on my hard drive

My iTunes won't back up my phone but i have over 50gb free on my hard drive

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