When attempting to open or register Point of Sale, you see the following error:

Error code 176109: Invalid Product Code or Invalid Product Number.

Why this is happening

This may be caused by one of the following:

  • The Point of Sale Entitlement folder contains damaged files.
  • An incorrect product code has been used to install Point of Sale.
  • You are not logged in to Windows as an administrator.

How to fix it

The following solutions require that hidden folders are enabled. Follow the steps from INF12729 to display hidden files and folders.