QuickBooks Integrated Application Error Codes & Resolutions

80040406 - Could not determine the version of the QuickBooks file

80040406 - Could not determine the version of the QuickBooks company data file or the data file has been modified and requires a new version of QuickBooks.

Resolving Error Code 80040406

This error has been reported when updating to a new version of QuickBooks.  Make sure QuickBooks is open and that it is the correct QuickBooks file.

Also see QuickBooks Connection Error Messages