When we login to Aria Orchestrator Control Center: https://AutomationOrchestratorFQDN/vco-controlcenter and Click on Validate Configuration, under "Authentication" we see below error.
Aria Orchestrator 8.x
we see this error because there is no Authentication configured for Aria Orchestrator.
Need to configure the Authentication Provider as Aria Automation or as vSphere
Follow the below KB and set the authentication.
https://knowledge.broadcom.com/external/article/383139/how-to-configure-the-automation-orchestr.html