To enable vRealize Orchestrator (vRO) to automate items in vRealize Automation (vRA), including aspects of IaaS, two steps are crucial. First, adding an IaaS host to vRO using the workflow ensures that vRO can interact with the IaaS components of vRA. Second, adding a vRA host to vRO using the workflow is necessary for enabling vRO to communicate and execute automation tasks within the vRA environment.