Tenant enabled vRealize Automation can only be accessed through vRealize Automation tenant FQDNs, scaling-out a tenant enabled vRealize Automation from a single node to a three node cluster behind a load-balancer requires changes to its DNS and certificate requirements.

For more information on Tenant FQDNs, see Multi-Tenancy Model. After you scaled-out, vRealize Automation tenants must be accessed through load-balancer tenant FQDNs and DNS, and certificates changes are to be made accordingly. The same recommendations are shown to the user as a manual pre-requisite to be taken care before scaling-out vRealize Automation 8.x from vRealize Suite Lifecycle Manager UI.