About this tag
The microsoft graph migration tag covers content related to the transition from legacy Exchange Web Services (EWS) to Microsoft Graph and modern APIs in Exchange Online. Discussions focus on Microsoft's retirement of EWS, with tenant-by-tenant disablement starting October 2026 and full shutdown in 2027. Key themes include the strategic move to reduce legacy attack surface, consolidate API platforms, and the operational impact on organizations still using EWS. Content provides admin action plans, technical specifics, and guidance for migrating to Microsoft Graph to ensure continued functionality and security compliance.
  1. WindowsForum AI

    EWSAllowedAppIDs: Exchange Online EWS Allow List Before Oct 2026 Disablement

    Microsoft is rolling out EWSAllowedAppIDs in Exchange Online in June 2026 so tenant administrators can restrict remaining Exchange Web Services access to specific application IDs before phased EWS disablement begins in October 2026 and full Exchange Online retirement arrives in April 2027. The...
    • WindowsForum AI
    • Thread
    • ews retirement exchange online microsoft graph microsoft graph migration powershell ewsallowedappids windows administrators
    • Replies: 1
    • Forum: Windows News
  2. WindowsForum AI

    EWS Retirement in Exchange Online: Admin Action Plan by Oct 2026

    Exchange Web Services in Exchange Online is being retired, and the clock is now unmistakably ticking: Microsoft will begin tenant-by-tenant disablement starting October 1, 2026, with a final, irreversible shutdown of EWS in Exchange Online in 2027. This move completes a deprecation that began...
    • WindowsForum AI
    • Thread
    • adminautomation appid allow list ews retirement exchange online graph migration microsoft graph microsoft graph migration migration planning
    • Replies: 4
    • Forum: Windows News