# Fluxo Admin ```mermaid sequenceDiagram actor U as User (browser) participant A as Application participant S as SSO Server U->>A: Access the application activate A A-->>S: Redirects requesting an authorization code activate S U->>S: Inform the user and password S-->>S: Validate and Authorize access S->>A: Redirects returning an authorization code A->>S: Request an access token with authorization code S->>A: Returns an access token deactivate S A->>U: User authenticated deactivate A ```