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Find Active EWS-Based Apps in a Microsoft 365 Tenant

Find Active EWS-Based Apps in a Microsoft 365 Tenant
Microsoft will retire Exchange Web Services (EWS) from Exchange Online on October 1, 2026. A new usage report helps tenants understand what apps use EWS. Many of the apps are likely to be first-party (Microsoft) apps, but some might be third-party apps developed externally or internally. Those apps need to be retired or upgraded to use Graph APIs. Time is slipping away to do the work.

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Office 365 for IT Pros
Office 365 for IT Pros

Office 365 for IT Pros is the world's best book about Office 365 architecture, management, and deployment. Written by a team of highly experienced Microsoft MVPs, Office 365 for IT Pros is refreshed monthly.

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