QuickBooks is a widely-used accounting software, favored for its ability to help small and medium-sized businesses manage their finances, invoicing, payroll, and more. However, like any software, QuickBooks can encounter errors that disrupt its functionality. One such error is QuickBooks Error 6190, which typically occurs when trying to open a company file stored on a network or multi-user mode. This error may be accompanied by the message: "QuickBooks is unable to open the company file because it is already opened in another location", or "Error 6190: The connection to the company file has been lost."