Cannot verify litigation hold status - ComputerGuru Security Investigator app not onboarded to Cascades tenant (HTTP 401 on Exchange REST). User account confirmed (Britney.Thompson@cascadestucson.com). Next steps: - Onboard Security Investigator app to tenant - Assign Exchange Administrator role - Re-run litigation hold verification HIPAA compliance blocker per Howard's 2026-05-06 note. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>