Microsoft sets February 2027 deadline to retire SMS sign-in for Entra ID
Microsoft has told IT administrators to move Entra ID users off SMS and voice-based first-factor sign-in before it shuts the option down in February 2027. Alternatives include passkeys, QR code authentication, and FIDO2 security keys, and the change applies even to organizations using their own telephony providers for multifactor authentication. The retirement covers only workforce tenant scenarios, not customer identity products like Entra External ID.