There is no need for users to log off from the system to apply this.
  • Run PCC from Windows search box then select
  • PSQL Control Centre  & Documentation (for V12) or
  • Zen License Administrator (for V14)
  • Go to TOOLS menu –> License Administrator
  • Paste the UCI Key and click AUTHORIZE button
  • Wait a few seconds and you should get a confirmation message box.
  • You're done!!!