Whenever you are trying to open your company file, upgrading your company file to a new version, opening your company file in multi-user mode, restoring back-up, you get a QuickBooks Error 6123. The error message reads this- ‘Error, -6123,0 We’re sorry but QuickBooks can’t open your company file. . .’

To resolve this error code, troubleshoot your QuickBooks data files or network set-up. QuickBooks File Doctor is an effective way of trouble-shooting your QuickBooks.

Causes of QuickBooks Error 6123:

There are a lot of reasons with which your QuickBooks is causing you trouble to work with your company file. Some of them are:

Your McAfee security software is causing you trouble, because of which, you are getting error 6123 in QuickBooks desktop.
Restoring a back-up directly form a thumb-drive or removable device
Damaged windows user
Firewall settings which prevent QuickBooks Desktop Files from reaching necessary portals
Damaged QuickBooks desktop data file or program file
Disrupting data connection from the computer
Multiple QuickBooks database services running in your computer