QuickBooks Point of Sale Errors and Troubleshooting [Quick Steps]

Often, this error takes place when you upgrade your Point of Sale to a later version or when
you try to add additional users or a client license to an existing POS network or in case you
enter an incorrect product key.
Here are some simple methods to verify the product code:
Or
• Click on Help > About Point of Sale
• Search for the Product Number.
• In case the product number is correct, check if you are logged into Windows as the
administrator or a user.
• If you have eliminated administrator rights, it means that the files in the POS Client
Entitlement folder may be damage.
• To repair these damaged files, do the following steps:
1. Firstly, Click on the Windows key Start button and then Control Panel.
2. Select Folder Options and click the View tab and then Show hidden files,
folders, or drives.
3. Click OK.
4. Click the Local Disk C : > go to Program Data > click Intuit > open
Entitlement Client > v8 [Windows 7 and Vista].