Convenient Techniques To Easily Rectify QuickBooks Error 176109

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QuickBooks Error 176109

Issues while using the POS function in QB can arise due to some common error codes, like QuickBooks Error code 176109. This error code can prevent users from registering QuickBooks or running the POS features and can occur due to an invalid product code or incorrect activation key. If you are encountering QuickBooks Error 176109, you can follow this article till the end to learn essential steps to effectively resolve the issue.

You can perform the resolution steps given below to address the POS issues in QB. In case these solutions seem too time-consuming or challenging to undertake, you can reach out to our team of QB professionals at 1-855-856-0042 to get direct assistance with the error.

Main Reasons & Major Factors Leading to the QuickBooks POS Error 176109

Error code 176109 in QuickBooks POS can arise due to the common causes & primary scenarios mentioned below –

  • The POS function might not be correctly installed, and the feature might be outdated, damaged, or corrupted.
  • The entitlement folder containing the POS files might be broken, damaged, or corrupted, and the folder might be invalid or improper.
  • You are not using the correct product code or activation key to install the POS feature in QuickBooks Desktop.
  • You are not running QuickBooks with Windows admin privileges while trying to access the point-of-sale feature in the app.
  • The QuickBooks Desktop application you are using might be outdated or discontinued, and the obsolete version might be incompatible with the POS function.

Read More : How To Fix QBDBMgrn Not Running On This Computer Issue

Solutions to Effectively Terminate QuickBooks Error Message Invalid Product Number

QuickBooks Desktop error 176109 can be successfully removed by using the troubleshooting steps given below –

Step 1 – Reinstall the POS Feature and Remove the User Account from the Control Panel

The invalid product code POS warning can be tackled by reinstalling the feature and deleting the user account.

  • Access the Control Panel from the Start menu and go to the Programs and Features menu to choose Uninstall.
  • Select QuickBooks POS and hit Uninstall/Change to run the uninstallation process, followed by hitting the User Accounts menu.
  • Choose the Manage Another Account option, go to the User Account window to click on QBPOSDBSrvUSER and hit Delete to reboot your PC.

Step 2 – Rename the Activity File from the Program Data Tab of the C Drive

Another way to eliminate the POS errors from QB is to modify the activity file name from the C drive.

  • Open the C Drive of your PC and go to the Program Data folder to choose the INI folder, and once done, right-click the WSActivity file to add OLD at the end of the file name.
  • Hit Enter and delete the ECML file in a similar manner to rerun QuickBooks and access the POS function again.


QuickBooks Error 176109 can be reliably resolved by using the detailed solutions given above. In case the error message isn’t removed and the POS issues persist, you can call our QB support team directly at 1-855-856-0042 to get technical guidance with the same.

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