Troubleshoot QuickBooks Error Code 6073, 99001

QuickBooks is one of small businesses’ most popular and widely used accounting software. And it captures nearly three-fourths of the market. It is prevalent among accountants and bookkeepers.

If you use QuickBooks in a multi-user environment, then more than one user can access the company file simultaneously if they have the necessary file access rights. You might face an error while opening the company file: QuickBooks Error 6073 and 99001. The error message displayed with the same is “QuickBooks is unable to open this company file. Another user may have opened it” Error codes: (-6073, -99001).


This blog intends to walk you through troubleshooting QuickBooks error 6073. Read the full blog for detailed instructions, and share your comments if you’ve anything to discuss.

What is QuickBooks Error 6073?

QuickBooks faces a standard set of issues that usually arise when the user tries to access their company file. These are known as the 6000 series of errors, and QuickBooks Error 6073 is a part of it.

The error is provoked when any other workstation attempts to open the data file in a single-user mode. Thus, the multi-user hosting settings must be configured appropriately, the failure of which might lead to the occurrence of QuickBooks Error 6073.

What are the Symptoms of QuickBooks Error 6073?

Here are some standard ways to recognize QuickBooks Error 6073; however, there can be other symptoms indicating the error depending on your version of the QB (QuickBooks) program:

  • The application will not respond actively to user requests
  • Windows screen may become greyed out or reflect a glitch on it
  • The system may also shut down suddenly and stay frozen despite rebooting
  • The user will face difficulty in switching windows between different applications
  • Inability to uninstall or update QB Desktop

Steps to Troubleshoot QuickBooks Error 6073:

Fix 1: Fix the Company File with QuickBooks File Doctor

Fix 2: Fix the 6073 Error Manually

Situation 1- Opening Company files in single-user mode on another PC:

Situation 2- When your file is opened in the Host computer yet is in single-user mode:

Fix 3: Type another Name for the Network Data File With .ND Extension

Fix 4. Run the Quick Fix my Program


This blog comprehensively covers how you can troubleshoot QuickBooks Error 6073. While we hope this comes in handy and solves your issue, you can also connect with the QuickBooks support team 1-800-615-2347 of QuickBooks if the error continues to prevail even after using the mentioned troubleshooting methods.

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