Fix QuickBooks POS Error 176109: Invalid Product Code or Number

Olivia Watson28 Sep, 2022Computer & Internet

This QuickBooks POS Error 176109 is triggered when the user tries to open or register the Point-of-Sale application. It essentially means that the authentication files have been damaged or corrupted. At the same time, this issue can emerge from the lack of reading and writing permission. Though there might be some more issues besides this, let us understand this error in more detail so that you can act quickly on it.