Afraid of what happened with your company file, why is it not opening? Not a serious error if you identify it in the early stage. QuickBooks error 6073 pops up when multiple users open the company file at the same time. However, the error might become a serious threat to your data if you do not fix it in a timely manner.

In this premium guide, you will understand why this error happens in QuickBooks, how to fix it, and what not to do while fixing it. If you are not sure about self-fixing this error, talk to a senior QuickBooks specialist at +1(866)500-0076. Your hours of headache can turn into 10 minutes of a quick fix.
Causes of QuickBooks Desktop Error Code 6073
- The company file is already open on any other workstation.
- The company file is stored in a read-only mode in the network folder.
- If you are working on a Linux server, you require appropriate authentication.
- Damaged QuickBooks Company file.
- Third Party Interruption.
- Working on an unstable Internet Connection.
- .Nd and .TLG files may be missing.
Solution to Fix the QuickBooks Error 6073
Only two solutions are required to fix the error 6073 with self-attempt.
Solution 1: Use QuickBooks File Doctor
- In the QuickBooks Tool Hub, click on Company File Issues.
- Click on Run QuickBooks File Doctor.

- It may take one minute to open. If the file doctor does not open, open it manually.
- Now, select your company file in the drop-down menu.
- Or, use the Browse option to find your company file.
- Click on Check your file (middle option only).
- Hit Continue and enter your QuickBooks login credentials.
- Finally, click on Next.
Confirm if it fixed your company file and network issues.
Solution 2: Check Your Hosting if it is ON on all workstations
Use only one computer or server to host your company files.
- Press F2.
- View your Product information.

- Fetch the Local Server Information.
- Ensure that your hosting mode is turned off.
Correct the host settings and confirm if the quickbooks error code 6073 99001 is fixed or not. If not, try solution 3.
Solution 3: Rename your.TLG and .ND files and run QuickBooks Database Server Manager
You need to know that .TLG and .ND files are a part of your company files. It is because of these files that you are able to access your company file in QuickBooks in a network or multi-user environment.
When these files get damaged, you see such an error while opening your QuickBooks company file. So, we will rename these files to fix the QB error code 6073. QuickBooks creates these files when the user scans it with the Database Server Manager.
Step 1: Rename.TLG file and.ND file
- Open the folder containing your company file.
- Search for the files with the same file name as the company files. Ensure to search with the extension .TLG and .ND.
- company_file.qbw.nd
- company_file.qbw.tlg
- Now, right-click on each of the files and click on Rename. Simply add an extension OLD in each file name. For example, you rename your file as company_file.qbw.nd.OLD
Step 2: Run your Database Server Manager in QuickBooks Tool Hub
Remember that it is QuickBooks Database Server Manager that hosts your company files. So, restart your Server Manager and scan the company files only after renaming them.
- Run QuickBooks Database Server Manager from the QuickBooks Tool Hub
- Click on Network Issues.
- Choose QuickBooks Database Server Manager.

Note:- If QuickBooks is not installed on your server, please install it.
- In the Database Server Manager, click on Start Scan if you have your company file(s).
Note:- You can use the Browse option if you do not have these files. Click Start Scan.
- Launch your QuickBooks and sign in to your company file.
Confirm if the QB error 6073 is resolved. If the error is still not fixed, try solution 4.
Solution 4: Configure your Windows Firewall Manually
We will use a port exception to fix your QB Error 6073. In this solution, we will add a port exception to your Windows firewall for QuickBooks.
- Click on the Windows Start.
- Search for Windows Firewall and open it.

- Click on Advanced Settings.
- Right-click on the Inbound Rules tab.

- Click on New Rule and select Port.
- Finally, hit Next.
- Ensure to select TCP only.
You would be seeing a field-specific local port. Simply add the ports you need for QuickBooks year version:
- QuickBooks Desktop 2024
- QuickBooks Desktop 2023
- Click Next once you enter the port number.
- Click on Allow the Connection.
- Hit Next and ensure to select all profiles.
- Click Next and create a new rule.
- Rename it in the format QBPorts(year).
- Hit on Finish.
Use the above steps to create an outbound rule as well. Instead of selecting Inbound Rules, right-click on Outbound Rules.
Solution 5: Close the QuickBooks Program
- Log in to your server as an Admin.
- Use the keys Ctrl + Shift + Esc and open the task manager.
- It will be the processes for each user.
- Select Users and select each QuickBooks process like QBW32.EXE, QBDBMgr.exe, and qbupdate.exe.
- Now, click on End Task.
- Open your company file in a multi-user mode.
Check and confirm if the error is fixed. If it still requires a solution, please proceed with solution 6.
Solution 6: Manually Resolve the QuickBooks Error 6073.
In case your company file is open in the Single User mode on another workstation.
- Exit QuickBooks Desktop from all workstations.
- Open the company file on the server computer.
- Click the File menu.
- Select Switch to Multi-user mode.

- If the error is not fixed, restart all your workstations.
If the company file is open on the Host computer in a single-user mode.
- Navigate to the File menu.
- Click Close company.
- Open the company file again and go to the file menu.
- Click on Open or Restore Company.

- Click Open a company file and Next.
- Choose your company file and select Open file in multi-user mode.
If the QuickBooks company file is located in a read-only network folder.
Visit the station that is hosting your QuickBooks company file.
- Open the folder that has your company file.
- Now, right-click on the same folder and select Properties.
- Navigate to the Security Tab.
- Confirm and select the user with the login issue, and click on Edit.
- Mark allows for full control.
- Click on Apply and hit OK.
If your PC is remotely accessed via LogMeIn, GoToMyPC, etc
- Launch the Quick Fix my Program in the QuickBooks Tool Hub.
- Select Program Problems and click on Quick Fix my Program.
- Launch QuickBooks Desktop.
- Open your company file.
Conclusion
We covered everything to provide you with the solution, causes, and what not to do while fixing the QuickBooks error 6073. The error’s solution also depends on your admin rights, permissions, and the version of QuickBooks you are using. We cannot forget that your system is fulfilling the requirements of QuickBooks.
If the error is still not resolved, talk to a QuickBookSupportNet specialist at +1(866)500-0076. We always strive to provide you with the best solutions and advice to keep your data safe and boost your smooth workflow.
Frequently Asked Questions
What is QuickBooks Error 6073?
The error code 6073 in QuickBooks means that your company file is not able to open. This comes with a message “QuickBooks Error Code 6073 – Unable to open company file”. It is because of the fact that any other user is using it, especially in multi-user mode.
How to fix Error Code 6073 in QuickBooks?
Suppose you are looking for steps to fix the error. Follow this guide. It covers everything any user needs to fix the error 6073.
Can I lose my data if I try multiple attempts to fix the error?
There is a possibility that you might lose your data. So, it is recommended to first attempt the fixes and, if required, contact the experts.
What are the causes behind the QuickBooks error 6073?
If any of the users try to open the same company file in a single-user mode, or if the file is saved in read-only mode. Follow this guide to know more reasons for the error in QuickBooks.
