How to Fix QuickBooks Point Of Sale Error 176109 ? Invalid Product Number.

QuickBooks Point of Sale is a popular software used by many businesses to manage sales, inventory, and customers. However, sometimes users may encounter errors while using the software, such as QuickBooks Point of Sale Error 176109. This error message appears as “Invalid Product Number” and can prevent users from accessing their Point of Sale software. In this guide, we will go through step-by-step instructions on how to fix QuickBooks Point of Sale Error 176109.

Step 1: Verify the Product Number

The first step to resolving QuickBooks Point of Sale Error 176109 is to verify that the product number entered during installation matches the one on the license certificate provided by Intuit. If the product number is incorrect or has been entered incorrectly, it can cause this error message to appear.

To verify the product number, follow these steps:

1. Open QuickBooks Point of Sale.
2. From the Help menu, select About Point of Sale.
3. Check the Product Number field to see if it matches the one on your license certificate.

If the product number is incorrect, you will need to reinstall QuickBooks Point of Sale and enter the correct product number during the installation process.

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Step 2: Update QuickBooks Point of Sale

If the product number is correct, but the error message still appears, the next step is to update QuickBooks Point of Sale to the latest version. Sometimes, outdated software can cause errors, and updating the software can fix the problem.

To update QuickBooks Point of Sale, follow these steps:

1. Close QuickBooks Point of Sale.
2. Open your web browser and go to the Intuit website.
3. Click on the Downloads & Updates link.
4. Select QuickBooks Point of Sale from the list of products.
5. Choose the latest version of QuickBooks Point of Sale and download it.
6. Install the update and follow the prompts.

Once the update is complete, open QuickBooks Point of Sale and check if the error message still appears.

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Step 3: Delete the Entitlement Client Data

If the error message still appears after updating QuickBooks Point of Sale, the next step is to delete the Entitlement Client Data. The Entitlement Client Data contains information about your QuickBooks Point of Sale license, and deleting it can resolve issues related to licensing and product validation.

To delete the Entitlement Client Data, follow these steps:

1. Close QuickBooks Point of Sale.
2. Open Windows Explorer and go to C:\Program Data\Intuit\Entitlement Client\vx.x.
3. Right-click on the EntitlementDataStore.ecml file and select Delete.
4. Click Yes to confirm the deletion.

Note: If you cannot find the EntitlementDataStore.ecml file in the specified folder, enable the option to view hidden files and folders in Windows Explorer.

5. Open QuickBooks Point of Sale and try to register the product again.

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Step 4: Rename the WSActivity File

If the error message still appears after deleting the Entitlement Client Data, the next step is to rename the WSActivity file. This file contains information about the Point of Sale web services and renaming it can resolve issues related to connectivity.

To rename the WSActivity file, follow these steps:

1. Close QuickBooks Point of Sale.
2. Open Windows Explorer and go to C:\Program Data\Intuit\QuickBooks Point of Sale xx\Ini.
3. Right-click on the WSActivity file and select Rename.
4. Add .OLD to the end of the file name (e.g., WSActivity.OLD).
5. Open QuickBooks Point of Sale and try to register the product again.

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Step 5: Perform a Clean Install

If the error message still appears after renaming the WSActivity file, the final step is to perform a clean install of QuickBooks Point of Sale. A clean install involves uninstalling and reinstalling the software, which can resolve issues related to corrupt files or settings.

To perform a clean install of QuickBooks Point of Sale, follow these steps:

1. Create a backup of your Point of Sale data. This is important as the uninstall process will remove all data associated with the software.
2. Uninstall QuickBooks Point of Sale from your computer. To do this, go to Control Panel > Programs and Features and select QuickBooks Point of Sale from the list of installed programs. Click on Uninstall and follow the prompts.
3. Rename the Point of Sale folders. Open Windows Explorer and go to C:\Program Files (x86)\Intuit. Rename the QuickBooks Point of Sale folder to QuickBooks Point of Sale.OLD and the QuickBooks Point of Sale xx folder to QuickBooks Point of Sale xx.OLD.
4. Delete the Point of Sale registry entries. Press Windows + R keys to open the Run dialog box. Type regedit and click OK to open the Registry Editor. Navigate to HKEY_CURRENT_USER\Software\Intuit\QuickBooks Point of Sale xx and HKEY_LOCAL_MACHINE\SOFTWARE\Intuit\QuickBooks Point of Sale xx. Delete these folders and their subfolders.
5. Reinstall QuickBooks Point of Sale. Insert the QuickBooks Point of Sale installation disk or download the software from the Intuit website. Follow the prompts to install the software and enter the product and license numbers when prompted.
6. Restore your Point of Sale data from the backup created in step 1.

After performing a clean install, open QuickBooks Point of Sale and check if the error message still appears.

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Conclusion :

In conclusion, QuickBooks Point of Sale Error 176109 can be frustrating to deal with, but it can be resolved by following these steps. Verify the product number, update QuickBooks Point of Sale, delete the Entitlement Client Data, rename the WSActivity file, and perform a clean install if necessary. By following these steps, you can get back to managing your sales, inventory, and customers with QuickBooks Point of Sale.