When numerous people attempt to view a company file in multi-user mode or if the file is already open on another computer, "QuickBooks Error 6073, -99001" happens. This mistake may interfere with workflow by preventing access to crucial data. It\'s usually fixable by checking and modifying file permissions or user preferences. Give us a call at +1.833.802.0002 if you would like to talk with a QuickBooks support specialist right away.