How to Re-enable Exchange Online EWS Apps and Fix Broken Apps
Microsoft provides guidance on re-enabling the Exchange Web Services (EWS) API in Exchange Online to fix broken EWS apps, including steps to use the Microsoft 365 Admin Center and Exchange Online PowerShell.
GeneralBeginner22/10/2026
Microsoft has announced that the Exchange Web Services (EWS) API will be disabled by default in Exchange Online starting October 1, 2026. To avoid issues with EWS apps that are no longer working, tenant administrators can re-enable EWS in the Microsoft 365 Admin Center. This can be done by unchecking the
