How to Resolve Quickbooks Error Code 6123,0

Quickbooks is innovative accounting software that is mostly used by small and medium-sized businesses. It plays a huge role in meeting their accounting needs and other needs.

Despite QuickBooks being widely used, it is still prone to several Quickbooks errors, which includes both common Quickbooks errors and also various technical ones. When it comes to resolving common QuickBooks errors, ‘Quickbooks Tool Hub’ is your one-stop solution.

Quickbooks Error code 6123,0 generally appears when a connection to the Quickbooks company file has been lost. There are several reasons for this error to occur, such as multi-user environments and other reasons.

When the user gets this error, it generally pops up with Quickbooks Error -6123, 0

What are the Causes of Quickbooks Error Code 6123,0 ?

Various reasons why Quickbooks Error Code occurs are as follows:

  • The main computer has a problem with the network connection.
  • The QBW files have been damaged.
  • Corrupt Quickbooks data or program files
  • Multiple QuickBooks database services are running.
  • The New Quickbooks version is opened from the same company file.
  • A backup is being restored from an external flash drive.
  • Damaged Windows user
What are the Solutions for Quickbooks Error Code 6123,0 ?

By following one of these steps you will be able to resolve your Quickbooks Error code 6123, 0:

Download Quickbooks File Doctor tool

You can download it from the official intuit website.

Once it has been downloaded, install and run it on the computer.

This utility indicates to users whether a company or a data file may be corrupted and causing error -6123,0

After running the tool, you can – restore the backup version of your company files.

Download Quickbooks Tool Hub

Other than Network and connectivity errors, the Quickbooks tool hub resolves other common errors such as installation errors, Company file errors, performance errors, and various other errors.

Download and install Quickbooks Tool Hub on your host computer.

If it persists, move to the next solution

Fix damaged Data files

  • Press the Windows Start button and click Explore.
  • Find your company file and right-click the “.ND” extension.
  • Rename the file, by adding “.ndold” to the file’s extension.

You can switch to multi-user mode by doing the following:

  • Go to the File menu
  • Then click on utilities.
  • Host your multi-user access
  • You can switch to multi-user mode by selecting “File>Switch”.

Reinstall QuickBooks

  • The first step is to uninstall QuickBooks, which is currently running on your computer, from the Control Panel.
  • Ensure that you have the product and license information available.
  • Next, insert the QuickBooks CD or download the software version you want to use into your computer.
  • Install QuickBooks by following the normal procedure.
  • Fill in your product details and license information.
  • Finally, open the company file.


This article should provide everything you need to know about Quickbooks error code 6123,0, with these methods, you will be able to solve this problem whenever it appears on your screen.

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Ellen Hollington

Ellen Hollington is a freelance writer who offers to ghostwrite, copywriting, and blogging services. She works closely with B2C and B2B businesses providing digital marketing content that gains social media attention and increases their search engine visibility.