How to Fix QuickBooks Error Code 6190 -816 (Unable to Open File)

Fri, 02 Jan 2026 16:03:52 +0000

QuickBooks Error Code 6190 -816 is one of the most disruptive issues users face when trying to access a company file. This error usually appears when the company data file and its transaction log file do not match or when QuickBooks is unable to access the file in multi-user mode. The message typically reads: “QuickBooks was unable to open the company file on the hosted computer.” When this happens, business operations halt, productivity drops, and accounting workflows are interrupted.