How to Fix QuickBooks Error 3645 (Data Integrity Verification Failed)?

Published Date: January 23, 2025   Updated Date: January 24, 2025

quickbooks error 3645

QuickBooks Error 3645, also known as “Data Integrity Verification Failed,” is a common issue faced by QuickBooks users. It typically appears when there is a problem with the data file of the company within QuickBooks, which disrupts the application’s ability to access and work with the company file. The error message generally reads, “Error 3645: Data Integrity Verification Failed,” and it may be accompanied by a pop-up window or system crash.

When the file experiences issues such as corruption or inconsistency, the application triggers Error 3645 to alert users that something is wrong. The error can occur across all versions of QuickBooks, including QuickBooks Desktop versions (Pro, Premier, and Enterprise) and QuickBooks Online, depending on the circumstances and file corruption severity.

In this article, you will learn three effective methods to resolve the issue, prerequisites to fix QuickBooks error 3645, how to identify when the error occurs, and learn how to prevent it from happening again.

Method 1: Run QuickBooks File Doctor

Run QuickBooks File Doctor
Run QuickBooks File Doctor

QuickBooks File Doctor is a free tool designed to diagnose and repair issues related to data integrity. It helps fix file corruption and network problems in QuickBooks.

  1. Download and install QuickBooks File Doctor latest version (1.4.0.0).
  2. Open the tool and choose the Company File Issues tab.
  3. Click OK, & Allow the tool to scan and repair any issues with the data file.

Method 2. Rebuild the Data File

QuickBooks offers a built-in tool to rebuild the company file and correct minor corruption.

  1. Open QuickBooks and select “File.
  2. Click on “Utilities” > “Rebuild Data.
  3. Follow the prompts to rebuild your company file.

Method 3. Use Verify and Rebuild Data

The Verify and Rebuild Data tools can help identify and fix data integrity issues.

  1. Go to “File” > “Utilities” > “Verify Data.”
  2. If QuickBooks finds issues, select “Rebuild Data” to fix them.

What are the Prerequisites to Fix QuickBooks Error 3645?

Before attempting to resolve QuickBooks Error 3645, make sure you have the following prerequisites:

  1. Backup Your Company File: Always create a backup of your company file to prevent potential data loss during the troubleshooting process.
  2. Ensure Stable Internet Connection: If you are working on a network-based file, a stable internet connection is necessary to avoid further complications.
  3. Have QuickBooks File Doctor Installed: This tool is necessary for diagnosing and repairing file-related issues.
  4. Admin Access: You need to have administrative access to your QuickBooks and computer to perform these fixes.
  5. Updated QuickBooks Version: Ensure that QuickBooks is updated to the latest release to minimize compatibility issues.

How to Identify QuickBooks Error -3645?

When you open or try to work on a company file, the error message “Data Integrity Verification Failed” appears on the screen. If your company file shows signs of corruption, such as missing or inaccurate data, it could trigger this error. If QuickBooks crashes unexpectedly or freezes during use, it may indicate a data integrity problem.

How to Prevent QuickBooks Error 3645?

To prevent QuickBooks Error 3645 from recurring, consider the following practices:

  • Always backup your QuickBooks data regularly to avoid data loss and minimize corruption risks.
  • Install a reliable antivirus program to protect your system from malware and viruses that may corrupt QuickBooks files.
  • Keep your QuickBooks software up to date to ensure compatibility and reduce the risk of software bugs and errors.
  • Use QuickBooks’ Verify and Rebuild tools regularly to check the integrity of your company file.

When Should You Seek Professional Help for QuickBooks Error -3645?

When the steps above don’t resolve the issue, or you’re unsure about handling the technical aspects, professional assistance might be necessary. For ongoing or more complicated problems, an experienced technician can provide specialized solutions to get your system back on track.

Hire QuickBooks Error 3645 “Data Integrity Verification Failed” Resolution Services

Opting for professional help can save you time and eliminate frustration, especially if you’re not confident in troubleshooting QuickBooks Error 3645 “Data Integrity Verification Failed” on your own. Dancing Numbers is a trusted name in QuickBooks error resolution, with a team ready to swiftly address QuickBooks Error -3645 and ensure your software runs smoothly.
+1-800-596-0806 or chat with experts.

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