Organizational Units (OUs) provide a structured, hierarchical way to organize your devices and users. With OUs, you can put devices and users into categories to easily apply policy to entire classes of devices at once.
Policies and configurations can be assigned to OUs. Those policies and configurations will then be applied to all devices that belong to the assigned OU, as well as to all children of that OU.
Examples
Here are a few examples of ways you might structure your Organizational Units.
Locations and Departments
If you have several office locations, you might create OUs for your offices, and child OUs for departments at those offices.
It's also possible to use departments as parent OUs with locations as child OUs under departments. Use whichever scheme best fits your needs. If each location has its own IT staff managing policies, you most likely want to use locations as the parent OUs.
Clients and Locations
If you're an IT services provider, you might create OUs for your clients, and child OUs for locations or departments belonging to those clients.

