September 1, 2026

Passkeys become the default authentication experience for affected users in public-cloud Entra ID tenants that have SMS or voice enabled today. These users are automatically enabled for passkeys and brought into Microsoft-managed registration campaigns.

September 18, 2026

Microsoft plans to share more details on how to use customer-managed telecom providers via the Microsoft Security Store, for tenants that still require SMS or voice delivery.

October 30, 2026

Organizations can start configuring their own telecom provider in Entra ID, if they decide to keep SMS or voice as part of their authentication and SSPR story.

February 1, 2027

Microsoft-provided SMS and voice delivery retires for public-cloud Entra ID tenants. If a user only has SMS or voice as an MFA method, passkey registration becomes a blocking step unless you integrate a telecom provider on your own.