After you migrate vRealize Orchestrator from an external cluster to the vRealize Automation Appliance, decommission the external cluster. You clean up the vRealize Orchestrator virtual machines, update the load balancers for the management applications, remove the dedicated endpoint in vRealize Automation, and so on.
Upgrade vRealize Automation to version 7.3
Migrate workflows and configuration data from the external vRealize Orchestrator cluster to the embedded vRealize Orchestrator.
Configure vRealize Automation to utilize the embedded vRealize Orchestrator components.
Configure the other applications that use the external vRealize Orchestrator to use the embedded vRealize Orchestrator.
Configure vRealize Automation blueprints to use the embedded vRealize Orchestrator so that these blueprints can be provisioned successfully.