Microsoft Graph Permissions is a feature that allows developers to access and manipulate data in Microsoft 365 and Microsoft Entra ID using a single API endpoint. It enables the creation of powerful, cross-platform applications that can access data across multiple Microsoft services, such as Outlook, OneDrive, and SharePoint.

To access data through the Microsoft Graph API, developers must first request permissions, which are granted on a “per-application” basis. This means that each application that uses the Microsoft Graph API must request specific permissions from the administrator, and the administrator must approve those permissions.

Microsoft Graph Permissions is built on the OAuth 2.0 protocol, which allows for secure, delegated access to resources. Developers can request permissions for different levels of access, such as read-only or full access, depending on the needs of their application.

With Microsoft Graph Permissions, developers can easily access and manipulate data across multiple Microsoft services, providing a seamless user experience and enabling new business scenarios.