You must use the Orchestrator configuration interface to install and configure the Horizon vRealize Orchestrator plug-in. You use the Orchestrator client to run and create workflows and access the plug-in API.
The Horizon vRealize Orchestrator plug-in is powered by vRealize Orchestrator. Orchestrator is a development and process-automation platform that provides a library of extensible workflows to manage the VMware vCenter infrastructure and other technologies.
Orchestrator allows integration with management and administration solutions through its open plug-in architecture. VMware Horizon 6.2.2 or 7 is one example of an administration solution that you can integrate with Orchestrator by using plug-ins.