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Preparing for the MS-102: Mastering Microsoft Graph API

Study Guide Cert Sensei Team 2026-09-02 7 min read

Microsoft Graph API is the unified programmability model that provides access to data across Microsoft 365. MS-102 candidates must understand how to authenticate with Graph, assign appropriate API permissions, and use it to automate administrative tasks and integrate third-party applications.

#Microsoft Graph #API #Automation #PowerShell #MS-102

The Purpose of Microsoft Graph

Microsoft Graph acts as the central endpoint for accessing data in Microsoft 365, Windows 10, and Enterprise Mobility + Security. It replaces numerous legacy, service-specific APIs.

Understanding its role in connecting disparate data silos is crucial for modern Microsoft 365 administration.

Authentication and Authorization

Accessing Microsoft Graph requires robust authentication via Microsoft Entra ID. You must understand the difference between delegated permissions (user context) and application permissions (background services).

Configuring app registrations and granting admin consent for Graph API permissions are common tasks that you will be tested on.

Automation and Scripting

While you don't need to be a developer, MS-102 requires knowing how to use Microsoft Graph PowerShell SDK to automate tenant administration.

Familiarity with common cmdlets and how they interact with the Graph API backend will help you efficiently manage users, groups, and devices at scale.

Effective Study Strategies

Because Microsoft Graph is deeply embedded in modern M365 management, you need practical exposure to it. The Graph Explorer tool is an excellent way to practice.

Pairing hands-on practice with high-quality assessment tools like Cert Sensei practice exams is the best way to study and validate your understanding of Graph integration concepts.

❓ Frequently Asked Questions

What is the purpose of Microsoft Graph API?

It serves as the central endpoint for accessing data across Microsoft 365, replacing numerous service-specific APIs.


How does authentication work for Microsoft Graph?

It requires robust authentication via Microsoft Entra ID, using delegated permissions or application permissions.


How can administrators automate tasks using Microsoft Graph?

They can use the Microsoft Graph PowerShell SDK to efficiently manage users, groups, and devices at scale.

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