It is possible to create two or more parallel business units. Simply create multiple business units and assign a user to more than one. This section will demonstrate how this configuration works using two primary business units: Department and Supervisor. In this example, the Supervisor Business Unit is hierarchical: it describes the reporting hierarchy in a typical vertical environment. The Department Business Unit is a flat structure. In this example, we will see how the Department Business Unit can be a two-tier or single tier environment. User restrictions has been enabled so that users can only see people below, not within, their business units.