M365 License Auditor

Connection

Application credentials are configured server side via environment variables. Scopes used: Directory.Read.All, AuditLog.Read.All, Reports.Read.All

Exchange Online PowerShell (not web-accessible) provides additional mailbox management capabilities via Connect-ExchangeOnline

⚠ Best-effort match (unlicensed, sign-in-disabled mailboxes) — Microsoft Graph has no direct "list shared mailboxes" API, so this can also include other unlicensed disabled accounts.

For authoritative Exchange Online mailbox data, use Exchange Online PowerShell:
Connect-ExchangeOnline → Get-Mailbox -RecipientTypeDetails SharedMailbox

Verify results in the Exchange admin center before taking action.

Confirm deploy

Confirm disable account