M365 Message Center

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20.07.2026

Services

Microsoft Entra

Updated July 20, 2026: We have updated the content. Thank you for your patience.[Introduction]Starting in March 2026, Microsoft Entra ID will introduce passkey profiles and synced passkeys to General Availability (GA). This update allows administrators to opt in to a new passkey profiles experience that supports group-based passkey configurations and introduces a new passkeyType property.Important: Only tenants that already have Passkeys (FIDO2) enabled are affected by this update. The passkeyType property enables admins to configure:Device-bound passkeysSynced passkeysBothIf your tenant already has Passkeys (FIDO2) enabled and you do not opt in to passkey profiles during the initial rollout window, your tenant will be automatically migrated to the passkey profiles schema at the date range specified below. When this occurs: Existing Passkey (FIDO2) authentication method configurations wi

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17.07.2026

Services

SharePoint Online · Microsoft OneDrive

Updated July 17, 2026: Phase 1, which enables Entra B2B for new external sharing, is now fully rolled out for Production environments. To ensure a smooth transition, Phase 2, the retirement of SharePoint Online OTP, has been rescheduled to begin on October 1 and is expected to complete by October 31 for Production environments.Both Phase 1 and Phase 2 roll outs exclude GCC, GCCH & DoD. New dates for these environments will be communicated via Message center when we are ready to proceed. Thank you for your patience.[Introduction]We are retiring SharePoint One‑Time Passcode (SPO OTP) authentication in OneDrive and SharePoint starting October 2026. Beginning in May 2026, new external sharing invitations and authentication will start using Microsoft Entra B2B instead of SPO OTP. This transition simplifies external collaboration, aligns authentication with Microsoft identity standards, and en

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16.07.2026

Services

Exchange Online

Updated July 16, 2026: We have updated the timeline. Thank you for your patience. [Introduction]We’re introducing a new Follow option for meetings in Outlook Mobile. This feature helps users stay informed when they cannot attend by prompting organizers to record the meeting and by ensuring followers receive key updates and follow‑up items.[When this will happen]General Availability (Worldwide): Rollout will begin in early August 2026 (previously mid-July) and is expected to complete by late August 2026 (previously mid-August).[How this affects your organization]Who is affectedAll users who schedule or respond to meetings in Outlook Mobile. Attendees will only see the option to respond with Follow if a meeting has two or more participants and when the organizer has requested responses.What will happenA new Follow option will appear as the third option in the mobile RSVP menu. To select “M

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15.07.2026

Services

Exchange Online

Updated July 15, 2026: We have updated the timeline. Thank you for your patience. [Introduction] Microsoft is retiring the -Credential parameter used when connecting to Exchange Online PowerShell. Starting with module versions released in December 2026 and later, the -Credential parameter will be removed from both Connect-ExchangeOnline and Connect-IppsSession cmdlets. Organizations using this parameter in automation scripts must migrate to a supported authentication method before that date. This change improves security by moving away from legacy authentication methods that do not support modern protections such as multifactor authentication (MFA). [When this will happen:] The -Credential parameter will be removed from Connect-ExchangeOnline and Connect-IppsSession cmdlets in Exchange Online PowerShell module versions released beginning end of year 2026 (previously July). A separate ser

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14.07.2026

Services

Microsoft Purview

Updated July 14, 2026: We have updated the timeline. Thank you for your patience.[Introduction] Microsoft Purview is introducing Classifier Simulation Mode, the first phase of the broader Classifier Health Monitoring Platform. This new capability allows admins to test and validate custom classifiers on production data before publishing. Simulation Mode enables admins to optimize classifier logic before deployment, helping in reducing false positives, scanning latency, and noisy matches. Admins will access simulation controls and classifier health insights directly in the Microsoft Purview compliance portal, making it easier to monitor and improve classifier performance in one centralized location.This message is associated with Roadmap ID 523201.[When this will happen:] Public Preview: Rollout begins mid-October 2026 (previously late June), completes by early November 2026 (previously en

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09.07.2026

Services

Microsoft Viva · Microsoft Copilot (Microsoft 365)

Updated July 9, 2026: We have updated the timeline. Thank you for your patience.[Introduction] Agent in Viva Engage communities are now available in Public Preview. Community admins can add agents to communities to help draft answers to questions without best or verified answers based on community content and add context to posts by answering follow up questions using the community's conversations and SharePoint site and library.We’re now adding the option for community admins to specify additional SharePoint sites outside the community as grounding sources. The agent will only use sites that community admins select, and it drafts answers from items that community members can view (Read).We are also adding a new capability: tagging by community members. Tagging by community members enables Microsoft 365 copilot-licensed users to @-mention the community agent in the comments and replies o