description Microsoft Graph API Overview
Microsoft Graph API gives software a common way to work with data and services across Microsoft's ecosystem. Applications can use it to access resources associated with Teams, SharePoint, OneDrive and Exchange, subject to permissions. It is an interface for developers rather than a ready-made filing or organization application, so its usefulness comes from the software built around it. For enterprises already using Microsoft 365, Graph can support a custom view that brings related information together across services.
A developer might connect shared files with the workplace context in which they are used, rather than asking staff to search each service separately. It suits integration teams and organizations with specific data workflows that existing applications do not fully cover. Access remains governed by authorization, and a unified interface does not mean unrestricted access to all corporate information.
help Microsoft Graph API FAQ
What can Microsoft Graph API read from Microsoft 365?
Microsoft Graph exposes data from services such as Outlook, Teams, OneDrive, SharePoint, Planner, and Entra ID through one REST API. The common endpoint is graph.microsoft.com.
Why do Graph API permissions confuse enterprise teams?
Graph uses delegated permissions for user-context access and application permissions for app-only access. A Teams message export, a SharePoint file sync, and a user profile lookup can require very different admin consent scopes.
Can Graph API keep a database synced without re-reading everything?
Yes, many Microsoft Graph resources support delta queries so an app can ask for changes since the last sync. That pattern is common for OneDrive, SharePoint, and directory data because full scans become expensive in large tenants.
Is Microsoft Graph a replacement for SharePoint or Teams?
No, it is an API layer over Microsoft 365 services rather than an end-user workspace. Developers use it to build apps that organize files, messages, calendars, and users already living in SharePoint, Teams, Outlook, and OneDrive.
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