During the Orchestrator training (level 2) you will get introduced to Orchestrator and its features. In that training it is also explained how to register a (free) tenant at https://platform.uipath.com/
Please follow the steps below in order to create a new tenant in the Orchestrator training environment.
Go to https://platform.uipath.com/ and click the Become a new tenant button.
Fill in the required fields using your information: name, surname, email address, and password (can be different).
Click the Become a tenant button and wait. This will become your own instance of the UiPath Orchestrator (tenant). You are automatically logged in to this tenant.
With one instance of Orchestrator, the multi tenancy feature enables you to define a custom number of tenants and have all the data (logs, reports, etc.) isolated for each individual tenant (or customer). You can read more about this on www.uipath.com.