QuickBooks Error 6190 occurs when a user tries to access a company file that is already in use in single-user mode. This issue, often accompanied by QuickBooks Error 6190 and 816, prevents users from opening their financial data, causing disruptions in accounting tasks.
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Causes of QuickBooks Error 6190 and 816
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Mismatch between the .QBW and .TLG files – When the transaction log file does not match the company file, QuickBooks cannot open it.
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Single-user mode conflict – If another user is trying to access the company file in single-user mode, it triggers this error.
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Corrupt .ND and .TLG files – Damaged network data or transaction log files can cause company file errors.
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QuickBooks not updated – Running an outdated version of QuickBooks may lead to compatibility issues.
How to Fix QuickBooks Error 6190
1. Use QuickBooks File Doctor
QuickBooks File Doctor can detect and repair file-related issues automatically.
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Download and install QuickBooks Tool Hub.
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Open it and select Company File Issues > Run QuickBooks File Doctor.
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Choose your company file and let the tool fix any errors.
2. Rename .ND and .TLG Files
These files help QuickBooks operate in a network setup. Renaming them can refresh the connection.
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Go to the folder containing your company file.
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Find the files with .ND and .TLG extensions.
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Right-click each file and rename it by adding .OLD at the end.
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Restart QuickBooks and try accessing your file again.
3. Ensure Single-User Mode is Disabled
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Close QuickBooks on all computers.
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Open QuickBooks only on one system and switch to multi-user mode if necessary.
4. Update QuickBooks to the Latest Version
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Open QuickBooks and go to Help > Update QuickBooks Desktop.
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Click Update Now, install the latest version, and restart your system.
Conclusion
By following these solutions, you can fix QuickBooks Error 6190 and regain access to your company file. If the error persists, professional support may be needed to troubleshoot deeper system issues.
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