To authenticate and manage user permissions, vRealize Orchestrator requires a connection to either vRealize Automation or a vSphere server instance.

When you download, and deploy vRealize Orchestrator Appliance, you must configure the server with a vRealize Automation or vSphere authentication. See Configuring a Standalone vRealize Orchestrator Server.
Note: vRealize Orchestrator 8.x authentication with vRealize Automation is only supported with vRealize Automation 8.x.