When initially installed, your system contains a single organization unit instances Installation, in the Administration division of the pega.com organization.
The Installation organization unit instance supports initial setup and use of the system. This organization unit has no special capabilities.
You can create additional organization units with the Organizational Setup and Organization Chart gadgets. Select Designer Studio> Org & Security > Organization to access the landing page that includes these gadgets.
Use the Records Explorer to see a complete list of the organization units on your system.
About Organization Unit data instances
Initial Data Instances