VCF 9.0 Requires UPN format for VCF SSO

Products

• VMware vCenter Server
• VMware Cloud Foundation

Issue/Introduction

Users or service accounts are unable to login with Down-Level Logon format i.e domain/user when using VCF SSO.

Please enter a valid username in the format: username@domain

Environment

VMware Cloud Foundation 9.x

Resolution

Change service accounts to login with UPN: username@domain