Here’s what happens when two people try to edit a file at the same time. Amy clicked the Edit Document button first, and then Brian clicked that button on his computer just a second later. He gets the File in Use message and is not able to edit the file until Amy closes it.
But if Amy leaves the file open when going to lunch, Brian can gain access to the file anywhere from 15 minutes to an hour later. If Amy wants more time to work on the file, she should check out the file first.
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