When a QuickBooks error code 6123,0 occurs, the error message “Association with the QuickBooks organization record has been lost” is usually displayed. This issue happens when a user upgrades a company file to a more recent version of QuickBooks or opens a company file via a network in a multi-user scenario. QuickBooks error code 6123, 0 is a 6000 series error that is readily fixed with the techniques covered later in this article.
