Migrating EWS notifications to Microsoft Graph
Microsoft details migrating EWS push/pull/streaming notifications to the unified Graph webhook subscription model.
“Microsoft Graph only has one type of change notification, which is delivered via webhooks—HTTP POST requests sent to a listener endpoint hosted by your application when a subscribed event occurs.”
A Microsoft 365 developer blog post explains how to migrate from the legacy Exchange Web Services notification framework to Microsoft Graph's webhook-based subscription model, covering rich notifications, immutable IDs, and delta queries. This is a developer migration guide with no meaningful AI industry signal.