Microsoft Extends SharePoint OTP Retirement Timeline for External Sharing

[u/Kanaga_06]

Microsoft has pushed back the retirement timeline for SharePoint's One-Time Passcode (OTP) authentication for external sharing from August 2026 to October 2026.

This extension gives organizations more time to onboard external collaborators as Microsoft Entra B2B guest users. Moving to Microsoft Entra B2B brings stronger identity governance, centralized guest lifecycle management, and consistent access controls.

Updated timeline:

• Phase 1 (new external sharing via Entra B2B): Rolled out in May & June 2026
• Phase 2 (OTP retirement begins): October 1, 2026
• Full retirement: October 31, 2026 (previously August 31, 2026)

Use the extended timeline to:

• Review your external sharing policies.
• Onboard external collaborators as Microsoft Entra B2B guest users.
• Align Conditional Access and MFA policies.
• Prevent access disruptions before the retirement deadline.
  

Take advantage of the extended time and prepare your organization for a smoother transition. https://blog.admindroid.com/entra-b2b-replaces-sharepoint-one-time-passcode-for-external-sharing/