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Windows Central
Windows Central
Technology
Cale Hunt

Microsoft's Exchange Web Services shutdown process now has concrete dates — Here's what you can do to avoid interruption after EWS is permanently disabled

Exchange Web Services (EWS) retirement.

Microsoft's Exchange Web Services (EWS) API has been on its way out since an initial retirement announcement in 2018, but we now have some concrete dates as to when it will officially disappear forever.

Beginning October 1, 2026, Microsoft is rolling out a "phased, admin-controllable disablement plan" that will eventually wrap up with a complete EWS shutdown in Exchange Online on April 1, 2027. Microsoft highlights the fact that these EWS changes only apply to Microsoft 365 and Exchange Online; no changes to EWS are expected in Exchange Server.

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