If you are using vRealize Automation workflows to call vRealize Orchestrator workflows, you must configure the vRealize Orchestrator instance or server as an endpoint.
You can associate a vRealize Orchestrator endpoint with a multi-machine blueprint to make sure that all of the vRealize Orchestrator workflows for machines provisioned from that blueprint are run using that endpoint.
vRealize Automation by default includes an embedded vRealize Orchestrator instance. It is recommended that you use this as your vRealize Orchestrator endpoint for running vRealize Automation workflows in a test environment or creating a proof of concept . For more information about managing the embedded vRealize Orchestrator instance, see Advanced Service Design.
You can also install a plug-in on an external vRealize Orchestrator server.
It is recommended that you use this vRealize Orchestrator endpoint for running vRealize Automation workflows in a production environment.
To install the plug-in, see the README available with the plug-in installer file from the VMware product download site at http://vmware.com/web/vmware/downloads under the vCloud Networking and Security or NSX links.