Recommended Tricks to Eliminate QuickBooks Error 3645
The Data Integrity Verification Failed error, sometimes referred to as QuickBooks error 3645, is one of the most frequent issues that QuickBooks users encounter. It usually happens when the program is unable to access and interact with the QuickBooks company data file due to an issue with the file. Error 3645: Data Integrity Verification Failed is a common error message that might result in the system crashing or a pop-up window appearing.