How to Fix QuickBooks Web Connector Error QBWC1039


Last Update: August 26th, 2025     Author: Adams Williams

Reviewed By: SMBAccountants Editorial Team

QuickBooks Web Connector error QBWC1039 occurs when the system can’t connect an external application with QuickBooks Desktop. This error shows different messages, but always signals a problem with permissions, file locations, or duplicate app setup. The following guide explains the causes and provides step-by-step solutions to resolve them quickly and efficiently.

Common Messages Associated with QBWC1039

QBWC1039: If the QuickBooks company data file is not open…”

QBWC1039: This application does not have permission to access the QuickBooks company data file…”

QBWC1039: Unable to add FileID to company file for this Application”

QBWC1039: There was a problem adding the application. Check QBWCLog.txt for details”

QBWC1039-There-was-a-problem-adding-the-application.-Check-QBWCLog.txt-for-details-Screenshot-Image

What is QuickBooks Error QBWC1039

There can be a few examples of QuickBooks error QBWC1039 that you can experience while utilizing the QuickBooks application. 

  • Error Warning 1: There was an issue with adding the application. Check QWCLog.txt for subtleties. This error is associated with QuickBooks. An error message was received from QuickBooks. If the QuickBooks company data file isn’t open, a call to the “Begin Session” technique should incorporate the name of the data file. 
  • Error Warning 2: When you try and unable to add a FileID to the company file for this Application, this error might be encountered
  • Error Warning 3: This application doesn’t have consent to access this QuickBooks company data file. The QuickBooks director can allow access authorization through coordinated application environments.

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Why Error QuickBooks QBWC1039 occur?

The error is mainly caused due to two reasons:

  • The QuickBooks company file has been moved from its initial location.
  • The third-party application or Warehouse Manager was incorrectly removed from the QuickBooks Web Connector.
  • When the company file name is changed
  • Similarity issues between the company file with the application 
  • When QuickBooks services confine reconciliation of outsider applications 
  • When you have made a few endeavors to coordinate the application

How to Resolve the QuickBooks Web Connector Error QBWC1039?

Solution 1 Reinstall The .QWC file to Web Connector

You need to reinstall the .qwc file to Web Connector. It gets installed in a very short time.

  1. Visit the website and download the QBWC CP3 tool. Keep a note that the download requires Internet Explorer 10, Chrome, or Firefox browsers.
  2. To install the tool double click the QBWC_CP3Tool_Installer.exe file.
  3. After the installation, select launch the QBWC CP3Tool.
  4. Minimize the tool
  5. Download the .qwc file for your application:
    • You can find the .qwc file with a click on the icon/maintenance option if you are using Warehouse Management.
    • If you are not sure of using the .qwc file for another application, contact your third-party agency for detailed information.
  6. Open QuickBooks Desktop and select the company files that are having problem.
  7. Make a backup copy of this company file.
  8. Bring the QBWC CP3 tool back up on the screen by clicking it in the Taskbar.
  9. Click Select File and locate the .qwc file.
  10. Click Remove Stamp.
  11. When the Application Certificate appears, select the third option. When the QB company file opens, and then click continue.
  12. Click yes in the Application Access Request window.
  13. Click Done on the access confirmation message.
  14. As back up is already created click OK.
  15. The QBWC CP3 tool will display a confirmation message if the owner ID was successfully removed.
  16. Close the QBWC CP3 tool.
  17. Install the .qwc file to the Web Connector:
    • Open Web Connector and click Add application.
    • Go to the .qwc file for your third-party agency and open it.
    • Input the password credentials in the Web Connector, and click yes on the message to save the password.

The Web Connector is now ready for synchronization process.

Solution 2: Resolve Issues Related To QuickBooks Company File

If QuickBooks error code QBWC1039 appears because of a few issues identified with the QuickBooks company file then perform the below steps

  • If you have renamed your QuickBooks company file, change the file name back to unique 
  • If the company file is moved to any other location, move it back to the previous location
  • Make sure you you utilizing the Admin login credentials while trying to open the QuickBooks company file utilizing Admin 
  • If you are running QuickBooks in Multi-User Mode, change to Single-User Mode. You can discover the alternative of Switch to Single-User Mode from the File tab. 

You additionally need to permit outsider applications inside the QuickBooks by following the guidelines: 

  • The first thing you have to do to open the Edit tab and select Preferences 
  • Then, pick Integrated Applications and click on the Company Preferences 
  • After this, you need to click the Third-party app and choose the Properties 
  • Now, mark the checkbox to allow this application to sign in consequently alternative. 
  • Give a click on the YES button to permit 
  • At last, pick the User that you need to sign in to and click OK.

Solution 3: Permit Third-Party Applications to Access the Company file.

Before implementing this solution, make sure you work in single-user mode. If not then, firstly switch to single-user mode and proceed further with these steps  

  • Open your QuickBooks and click on the Edit tab
  • Then, you have to choose the Preferences 
  • Pick Integrated Applications and afterward move to the Company inclinations area 
  • Unmark the checkbox against Don’t permit any applications to get to this company file choice. 
  • Presently, open the App Authorization window, click Yes and permit the applications you need to add 
  • Hit the last click on the OK  button to affirm the progression.

Error interfacing with QuickBooks was. If the QuickBooks company data file isn’t open, a call to the BeginSession technique should incorporate the name of the data file. This happens when you rename your company file, move it to an alternate area, or it doesn’t work with the third-party app. 

  • QuickBooks Web Connector isn’t arranged to run when QuickBooks is shut. 
  • Then move your company file to another location or rename it
  • Then, Rename your company file to the past file name. 
  • If you moved your company file, make a backup and reestablish it back to the past area. 
  • After this, you may have to contact your app’s help group and request that they update their file area to coordinate with yours. 
  • If you haven’t as of now, design a Web Connector to run when QuickBooks is shut 
  • Then, sign in to QuickBooks as the Admin user 

If you work on Multi-user mode, then open the  File menu and go with the below guidelines 

  • Choose the Switch to Single-user Mode option
  • Again, Edit the menu and then choose the  Preferences. 
  • After this, you have to choose the Integrated Applications 
  • Then, click on the Company Preferences tab. 
  • The next step is to choose a third-party app and click on the Properties. 
  • Check and verify to permit this application to sign in without any issue 
  • In the Authorization window, select YES. 
  • The last step is to choose the user to sign in
  • Click on the OK button and you are all done with this process. 

QBWC1039: Unique OwnerID/FileID pair esteem required 

This happens if the app is as of now on QuickBooks and you’re attempting to add it once more. Resolve this issue with the following steps: 

  • The initial step is to open the QuickBooks Desktop and download the tool
  • Then, choose the Open 
  • Pick Select file, at that point look for your QWC file. This will place the file in the Enter QBWC file Location
  • Now, choose the Remove option
  • Then, go to the QuickBooks Application Certificate and click on the Yes when it appears
  • On the Access Confirmation window, select Done. 
  • Move forward and you will get an affirmation that the Owner ID has been eliminated
  • Click on the OK. 
  • Close the downloaded tool and re-add your third-party app. 

QBWC1039: Can’t add File Identity to company file for this Application 

Sometimes, the user can’t add FileID to the company file for this Application. This happens when you had a go at adding an app too often. The application ought to just be added once on one area. 

QBWC1039: There was an issue adding the application. Check QBWCLog.txt for subtleties 

This happens when you don’t have the company file open or the area was moved. To resolve it perform the below guidelines.

In any case, if you changed your file name or moved the area of your company file, fix any changes. Move it back to the first area. 

  • If you need to rename your file or change the area, eliminate the app from QuickBooks Web Connector 
  • Rename your file or change your area 
  • Interface with Web Connector 
  • Ensure every variant of QuickBooks on your framework is on the most current delivery. 

If you’ve uninstalled the latest edition of QuickBooks then you at present use, you may have to reinstall and update the more up-to-date item to the most current delivery. Our items are subject to the most recent form you introduced. 

If you moved the location of your company file or changed your file name, then undo all changes. Move it back to the original location. If you want to rename your file or change the location,  remove the app from QuickBooks Web Connector

  • Rename your file or change your location
  • Connect to Web Connector

Make sure each version of QuickBooks on your system is on the newest release. If you’ve uninstalled a newer version of QuickBooks than you currently use, you may need to reinstall and update the newer product to the newest release.

Need Professional Help?

If you are facing issues getting an error in QuickBooks Software, you can contact our QuickBooks expert team at Smbaccountants.com. They assure complete error rectification in the minimum wait time. The resolution is complete and assured to be resolved in the minimum wait time.

Frequently Asked Questions

Q 1: Why does QBWC 1039 Occur in QuickBooks Desktop?

Q 2: How to Deal with the QBWC 1039 Error in QuickBooks?

Q 3: How Do I Allow Third-Party Applications to Access the Company File to Resolve the Error QBWC1039?

Q 4: How to fix QBWC1039?

Adams Williams

Adams Williams is a seasoned accounting professional with over 4 years of experience in bookkeeping, financial reporting, and business accounting solutions. Specializing in QuickBooks software, Adams combines technical expertise with clear, accessible content writing to help businesses streamline their financial processes. His insightful guides and how-to articles are crafted to assist both beginners and seasoned users in navigating accounting software with confidence.

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