QuickBooks Point of Sale Error 121

The QuickBooks Point of Sale application is a potent piece of software that can propel your company’s growth. The greatest application for efficient business management with accurate results and significant time savings. Users of the software occasionally complain QuickBooks Point of Sale Error number 121, which is common with all applications.

What is Error 121 in QuickBooks POS?

This error code shows that when a user other than a system administrator signs in to your POS, an error occurs. An error notice reveals the mistake.

When you see this error, go to the help and software updates page in QuickBooks POS where you will find a software update that will resolve the problem. The server and work area both need to download and execute the update.

Method to Solved QuickBooks POS Error 121

You must remove the WSActivity.xml file and all the data from the Entitlement Client folder in order to resolve the QuickBooks POS update issue 121. Before attempting to carry out the resolution procedures, make sure that all Point of Sale processes and services have been halted.

Step 1: Close all the POS processes and Services

  • Select Task Manager
  • Choose the Processes
  • Locate and close all the processes: exe
  • Close Task Manager process
  • In the search window enter services.msc
  • Go to Services window, search for QBPOS Database Manager vXX (‘XX’ refers to QuickBooks version)
  • End up all the services
  • Stop all the services window

We advise that you proceed with the procedures below if the issue with “QuickBooks POS Error 121” in your accounting software still exists.

Step 2: Delete the Required Files

  • View the hidden Windows folders
    • Windows 8.1 and 8
    • Vista and Windows 7
    • Windows XP
  • Move to the location depending on your Operating System
    • Windows 8 and 8.1: C: Program DataIntuitEntitlement Clientv8.0
    • Vista and Windows 7 : C:Program DataIntuitEntitlement Clientv8.0
    • Windows XPC : DocumentsandSettingsAllUsersApplicationDataIntuitEntitlementClientv8.0
  • Select all files in the folder
  • Select Delete.
  • Move to the previous location: C: Program DataIntuitQuickBooks Point of Sale XX.0.
  • Approach the INI folder and delete the WSActivity file.
  • Open POS again and download and install updates required.
  • Complete the registration process.