How To Fix QuickBooks Error 40003?
When a user tries to download QuickBooks' most recent updates, the QuickBooks Payroll Error 40003 appears in the payroll section. The problem is typically caused by another background-running device activity. This causes an interruption in the middle of the download process, making it impossible for users to finish it. Error 40003, "Unable to access the QuickBooks Company File," is the error message that appears on the screen.