QuickBooks Integrator: Error 669: The connection to QuickBooks failed

When I attempt to connect to QuickBooks, I get error 669: The connection to QuickBooks failed.

Date Entered: 12/31/2007    Last Updated: 10/08/2013

This error is coming from within QuickBooks itself; the QuickBooks SDK log should provide more information on what is causing this.

QuickBooks maintains its own log of QBXML communications in a flat file titled "qbsdklog.txt".

The location of the file may vary depending on the version of QuickBooks and the operating system you are using. Some locations include:
  • C:\Program Files\Common Files\Intuit\QuickBooks
  • C:\ProgramData\Intuit\QuickBooks
  • C:\Documents and Settings\All Users\Application Data\Intuit\QuickBooks
Any errors that occurred will be added to the bottom of the file.


Also, when you're connecting for the first time, is the QuickBooks UI opened with an administrator account? You will need to have QuickBooks open so you can grant access to the connecting application.

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