The Microsoft Exchange Team emphasized that EWS remains available and supported for use in production environments. However, they strongly recommend migrating to Microsoft Graph to access Exchange Online data and to benefit from the latest features and functionalities.
During the transition period leading up to the 2026 cutoff date, Microsoft will provide security updates and some non-security-related features for a select number of EWS components. Nonetheless, the platform is not expected to undergo any major overhauls. It’s important to acknowledge the existence of “feature gaps” between EWS and Graph. Microsoft is committed to expanding the list of features that Graph users can enjoy in the coming years, although it may not be possible to migrate all features seamlessly.
