# Microsoft Graph Change Notifications - Simply Explained

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Text version: https://stenobird.com/podcast/m365-fm-modern-work-security-and-productivity-with-microsoft-365-7311214/microsoft-graph-change-notifications-simply-explained.md
Podcast: [M365.FM a Microsoft MVP Podcast by Mirko Peters](https://stenobird.com/podcast/m365-fm-modern-work-security-and-productivity-with-microsoft-365-7311214)
Published: 2026-07-24T11:00:03+00:00
Episode link: https://www.spreaker.com/episode/microsoft-graph-change-notifications-simply-explained--73141097
Audio file: https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/73141097/microsoft_graph_change_notifications_simply_explained.mp3
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Duration seconds: 671

## Resource

Welcome to another episode of Knowledge Nuggets with Mirko Peters. Today we're exploring Microsoft Graph Change Notifications, one of the most important capabilities for building modern, event-driven Microsoft 365 applications. Imagine your application needs to know whenever a new email arrives, a SharePoint document is updated, a Teams message is posted, or a user account changes inside Microsoft Entra ID. The traditional approach is simple—but inefficient. Your application repeatedly asks Microsoft Graph whether anything has changed. Most of the time the answer is "no," wasting API calls, increasing latency, and potentially triggering Microsoft Graph throttling. Microsoft Graph Change Notifications solve this problem by turning Microsoft 365 into an event-driven platform. Instead of continuously asking for updates, your application simply subscribes to the resources it cares about, and Microsoft Graph automatically notifies your application whenever something changes. In this episode, we'll explain how Change Notifications work, how subscriptions and webhooks fit together, why subscription renewal matters, and how organizations use this capability to build real-time Microsoft 365 solutions. THE PROBLEM WITH POLLING Before understanding Change Notifications, it's important to understand the problem they were designed to solve. Traditionally, applications relied on polling. Every few minutes an application would call Microsoft Graph asking whether anything had changed since the previous request. This approach creates several problems. If nothing has changed, every request wastes processing power, bandwidth, and API quota. If something changes immediately after the last request, users may wait several minutes before the application notices. Developers are forced to choo…

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