Can more than one person use the same Apple ID?
can more then one person use the same ID?
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They can but it's not a good idea. Some might say it's a terrible idea. All iCloud data will be accessible by both and a deletion of something by one will delete on the other person's devices.
In virtually all cases it is a better idea to use Family Sharing if two people have some things that they want to share. See: Family Sharing - Apple Support