How To Fix QuickBooks Error 6123, 0?

QuickBooks Error 6123, 0 occurs when restoring a company file from backup, opening a company file, or upgrading a company file to a newer version. To fix this error, start by ensuring your QuickBooks Desktop is updated to the latest release. Next, utilize the QuickBooks Tool Hub to run the File Doctor tool, which can diagnose and repair file-related issues. If the error persists, manually rename the .ND and .TLG files associated with your company file, which can resolve network and transaction log issues. Ensure your system’s firewall settings allow QuickBooks to operate without restrictions. If all else fails, restore a recent backup of your company file or contact QuickBooks support for advanced troubleshooting.