Microsoft 365 has become the backbone of modern workplace productivity. From enterprise email and Teams collaboration to cloud-based document management and advanced security features, Microsoft 365 powers the daily workflows of hundreds of millions of professionals worldwide. In 2026, the MS-900 — Microsoft 365 Fundamentals certification — has emerged as one of the most accessible and practical entry-level certifications available for business and IT professionals alike.
Whether you are new to Microsoft 365, transitioning from an on-premises IT environment, or simply looking to validate your foundational cloud knowledge, this guide will walk you through everything you need to know to prepare for and pass the MS-900 exam in 2026.
What Is the MS-900 Exam?
The MS-900 Microsoft 365 Fundamentals exam validates your understanding of cloud services, software-as-a-service (SaaS) concepts, and Microsoft 365 specifically. Like the AZ-900, it is a foundational exam designed to be accessible to candidates without deep technical backgrounds.
The exam covers five key domains:
- Describe cloud concepts (10–15%)
- Describe Microsoft 365 apps and services (45–50%)
- Describe security, compliance, privacy, and trust in Microsoft 365 (25–30%)
- Describe Microsoft 365 pricing and support (10–15%)
The exam contains 40 to 60 questions and must be completed in 60 minutes. A passing score of 700 out of 1000 is required. It can be taken online or at a Pearson VUE test center.
Who Should Take the MS-900?
The MS-900 is uniquely valuable because of how broadly it applies across job roles:
IT administrators and support staff: Understanding Microsoft 365 at a foundational level helps IT teams manage licenses, support users, and troubleshoot common issues more effectively.
Business decision-makers: Managers and executives who are evaluating or already using Microsoft 365 benefit from understanding what the platform includes, how it is priced, and what security controls are available.
Sales and pre-sales professionals: Technology sales teams selling Microsoft 365 solutions need a solid foundational understanding of the product to have credible conversations with clients.
Students and career changers: For anyone entering the IT field, MS-900 is a low-barrier starting point that demonstrates cloud and Microsoft 365 knowledge to prospective employers.
Project managers and consultants: Those leading Microsoft 365 implementation or migration projects benefit from understanding the platform’s capabilities and limitations.
Key Topics Covered in MS-900
Cloud Concepts
The MS-900 begins with foundational cloud computing concepts that apply broadly to Microsoft 365 and other cloud services:
- Understanding what cloud computing is and its core characteristics
- Differentiating between IaaS, PaaS, and SaaS
- Understanding the shared responsibility model
- Benefits of cloud computing for organizations
Microsoft 365 Apps and Services
This is the largest domain and covers the full Microsoft 365 ecosystem:
Productivity apps: Word, Excel, PowerPoint, OneNote, and their online versions via Microsoft 365 for the web
Collaboration tools: Microsoft Teams for chat, meetings, and file collaboration; SharePoint for intranet sites and document management; Yammer for enterprise social networking
Email and calendar: Exchange Online for enterprise email, calendar management, and contact sharing
Device management: Microsoft Intune for mobile device management (MDM) and mobile application management (MAM)
Endpoint security: Microsoft Defender for Endpoint and its integration with Microsoft 365
Analytics and intelligence: Microsoft Viva for employee experience, Power BI for data visualization, and Microsoft Copilot AI integration
Security, Compliance, Privacy, and Trust
With cybersecurity threats growing every year, this domain has become increasingly important:
- Microsoft 365 Defender suite for threat protection
- Azure Active Directory (Microsoft Entra ID) for identity management
- Multi-factor authentication (MFA) and conditional access policies
- Microsoft Purview for compliance management, data governance, and eDiscovery
- Sensitivity labels and information protection policies
- Microsoft’s compliance with global standards (ISO 27001, GDPR, HIPAA, SOC 2)
- The Microsoft Trust Center and its role in transparency
Pricing, Licensing, and Support
Understanding how Microsoft 365 is sold and supported is critical for this exam:
- Microsoft 365 subscription plans (Business Basic, Business Standard, Business Premium, Enterprise E1, E3, E5)
- How to identify the right plan for different organizational needs
- Microsoft 365 support options and service level agreements
- The Microsoft 365 admin center and its core functions
- Lifecycle policy for Microsoft 365 services
How to Study for MS-900 Effectively
Start with Microsoft Learn
Microsoft provides a free, structured learning path for MS-900 at learn.microsoft.com. The MS-900 learning path is divided into modules that correspond directly to the exam domains. These modules include interactive exercises, knowledge checks, and sandboxes that make learning engaging and practical.
Explore Microsoft 365 Hands-On
If your organization uses Microsoft 365, use it actively during your preparation. Explore Teams, SharePoint, the Microsoft 365 admin center, and Compliance center. Seeing these tools in action solidifies your understanding far better than reading about them.
Practice with MS-900 Exam Dumps
Using MS-900 exam dumps is an effective way to test your understanding and get familiar with the question format. High-quality dumps include questions across all five domains with detailed explanations, helping you identify gaps in your knowledge before the real exam.
Focus on the Security and Compliance Domain
Many candidates underestimate the security and compliance domain. With 25–30% of the exam dedicated to this area, spending extra time on Microsoft Purview, Microsoft Defender, and compliance frameworks is a smart investment.
For additional Microsoft 365 certification prep resources that cover the full range of MS-900 topics with clear, beginner-friendly explanations, supplementary study material can reinforce your Microsoft Learn studies effectively.
Suggested 2-Week Study Plan
Week 1
- Day 1–2: Cloud concepts and SaaS fundamentals
- Day 3–4: Microsoft 365 productivity apps and collaboration tools
- Day 5–6: Email, calendar, device management, and endpoint security
- Day 7: Practice questions on cloud concepts and Microsoft 365 apps
Week 2
- Day 1–2: Security, compliance, and privacy features
- Day 3: Microsoft 365 pricing, licensing, and support plans
- Day 4–5: Full practice exam and review of wrong answers
- Day 6: Weak area focused review
- Day 7: Final practice exam — aim for 80%+ before booking
Tips for Passing MS-900 on Exam Day
Know your Microsoft 365 plans. Questions about which plan includes which features appear regularly. Know the differences between Business Basic, Business Standard, Business Premium, and the Enterprise E-series plans.
Understand Microsoft Purview. This is a newer branding for Microsoft’s compliance tools and appears frequently in the exam. Know what it does and how it relates to data governance and eDiscovery.
Do not confuse Microsoft 365 with Office 365. Microsoft rebranded Office 365 to Microsoft 365. Know what changed and what stayed the same, as questions sometimes test whether you understand the current product naming.
Read carefully about shared responsibility. The shared responsibility model comes up in both the cloud concepts and security domains. Know exactly what Microsoft is responsible for versus what the customer manages.
What Comes After MS-900?
The MS-900 is a launchpad for a broader Microsoft 365 certification journey:
- MS-102: Microsoft 365 Administrator (associate level)
- MS-700: Managing Microsoft Teams
- MS-721: Collaboration Communications Systems Engineer
- SC-900: Microsoft Security, Compliance, and Identity Fundamentals
Each of these builds on the foundational knowledge validated by MS-900, making it an excellent first step in a Microsoft-focused career path.
Final Thoughts
The MS-900 Microsoft 365 Fundamentals exam is one of the most accessible and widely relevant certifications available in 2026. With two weeks of focused study, quality practice materials, and hands-on exploration of the Microsoft 365 platform, passing on your first attempt is very achievable. Whether you are starting your cloud journey or simply formalizing your existing Microsoft 365 knowledge, this certification is a smart and practical investment.
