Here’s the uncomfortable truth about MS-900: Microsoft retired this exam on March 31, 2026, and its replacement — AB-900 Microsoft 365 Copilot — entered beta in November 2025. That context shapes everything about whether this cert still makes sense for you. For candidates who already hold MS-900, it remains a valid documented baseline for the Microsoft 365 ecosystem. For everyone else, AB-900 is the path forward.

What Is MS-900 Microsoft 365 Fundamentals Certification?

MS-900 is Microsoft’s entry-level credential for its cloud productivity platform. Issued by Microsoft Corporation and delivered through Pearson VUE and its subsidiary Certiport, the exam validates foundational knowledge across Microsoft 365 apps, security and compliance concepts, cloud models, and licensing structures.

What makes it different from role-based Microsoft credentials is scope. This isn’t a technical administration exam. It’s designed to confirm that someone understands the Microsoft 365 ecosystem well enough to work in it, explain it, or make decisions about it. The passing score is 700 on a 1,000-point scale, and Microsoft Fundamentals certifications don’t expire — no annual maintenance cost, no renewal requirement.

The curriculum received a meaningful update in April 2025, adding Microsoft 365 Copilot coverage and Microsoft Viva apps to reflect Microsoft’s AI investment. Microsoft retired the exam on March 31, 2026, making AB-900 its successor.

Who Should Get MS-900 Certified?

IT support staff moving into Microsoft 365 environments. Helpdesk technicians and IT support specialists who field M365 questions daily benefit from the structured platform overview MS-900 forces. It fills the gaps that on-the-job exposure leaves uneven.

Business stakeholders involved in M365 procurement or rollout. Project managers, department heads, and procurement staff who evaluate or approve Microsoft 365 investments use MS-900 to build enough technical fluency to ask the right questions.

Career changers entering IT. MS-900 is a realistic first certification for someone transitioning from a non-technical background. No experience prerequisites. No prior IT credential required.

Who shouldn’t bother: Experienced IT professionals who already hold role-based credentials like MD-102 or MS-700. The fundamentals-level content won’t move the needle at that career stage. Also, candidates planning a long Microsoft 365 career path should monitor the AB-900 announcement before committing to MS-900 prep — the window is closing.

MS-900 Exam Domains and Weights

The exam covers four domains, but they’re not equally weighted — and that gap matters for where you spend study time. One domain alone accounts for nearly half the exam content, while another tests the most conceptually difficult material despite carrying the smallest weight. The widget below maps every domain with its weight percentage, key topics, and difficulty rating so you can build a study plan that reflects the actual exam balance.

MS-900 Exam Cost, Format, and Pass Score

The passing score is 700 out of 1,000. The exam is delivered through Pearson VUE or Certiport. Official fee figures weren’t confirmed from authoritative sources during research — third-party sources cite figures ranging from $99 to $165 USD, but verify the current price directly at learn.microsoft.com before registering. The widget below shows the full cost breakdown including retake policy and student discount eligibility.

MS-900 Salary and Job Outlook 2026

ZipRecruiter reports a national average of $95,777 for MS-900-related roles as of April 2026, with active job postings ranging from $50,000 to $202,000 depending on seniority. Skillsoft’s survey of certified professionals puts the figure at $106,311 — a gap that reflects methodology differences, not magic. MS-900 holders cluster in IT support and helpdesk roles. The widget explores the full salary landscape with role-level breakdowns and industry tags.

MS-900 Requirements: Experience and Eligibility

No formal prerequisites exist for MS-900. Microsoft designed it as a true entry point — no required experience, no prior certification, no education minimum. That’s consistent across the entire Microsoft Fundamentals tier.

What Microsoft does recommend is a general understanding of Microsoft 365 services before sitting the exam. In practice, this means familiarity with tools like Teams, Outlook, and SharePoint at the user level, not the administrator level. Most candidates arrive with some workplace exposure to Microsoft 365 apps, which is enough to build on.

Honest difficulty assessment: MS-900 is genuinely accessible, but it’s not trivial. The licensing and pricing domain consistently trips candidates up because the distinctions between Business, Enterprise, and Frontline plan families require active memorization, not intuitive reasoning. The security domain (25–30% of the exam) requires enough conceptual depth on Zero Trust, Microsoft Entra ID, and compliance frameworks that surface-level reading won’t carry you through.

Timeline by background: candidates with existing M365 workplace exposure typically prepare in two to four weeks. A CBT Nuggets survey of 250 respondents found that 84% of MS-900 candidates prepared in under three months.

How to Study for MS-900: Resources and Study Plan

Microsoft provides a free study guide and free practice assessments at no cost — start there before spending anything. Most candidates combine the official materials with one paid course (Pluralsight, Udemy, or Coursera) and a practice question bank. The resource navigator below filters by format, cost, and domain coverage. The study plan builder maps a week-by-week timeline to your target exam date.

What Changed in the MS-900 2025 Update

The current exam reflects skills measured as of April 30, 2025. Three topics were added: Microsoft 365 Copilot and Microsoft 365 Copilot Chat, Microsoft Viva apps, and Granular Delegated Admin Privileges (GDAP). One topic was removed: Microsoft 365 lifecycle.

These aren't cosmetic changes. Copilot coverage signals Microsoft aligning even its entry-level exams with its AI strategy. Candidates using pre-2025 study materials will hit gaps on Copilot and Viva content that could cost them on exam day.

The bigger update, though, is structural: MS-900 retires March 31, 2026. The AB-900 Microsoft 365 Copilot exam entered beta in November 2025 as the announced replacement. Full AB-900 details weren't available in research sources, so candidates should track the official Microsoft certification pages for general availability timing. Study materials built for MS-900 will not map cleanly to AB-900 given the Copilot focus of the replacement.

How AI Is Changing Microsoft 365 Careers

Microsoft's own TechCommunity certifications refresh announcement frames AI as the primary driver behind overhauling its fundamentals portfolio. The MS-900 to AB-900 transition isn't a routine curriculum refresh -- it's Microsoft explicitly reorienting its entry-level credential around Copilot capabilities.

For careers, this creates a practical split. Roles that previously required only general M365 familiarity increasingly list Copilot configuration, prompt governance, and AI policy literacy as expected competencies. Helpdesk and IT support staff are being asked to troubleshoot Copilot behavior and explain AI outputs to end users -- tasks that didn't exist two years ago.

What AI doesn't replace here is human judgment on compliance and access decisions. The security and identity domain of MS-900 (and its successor) covers exactly the kind of governance work -- conditional access policies, GDAP, compliance frameworks -- that organizations can't automate away. MS-900 holders who push toward MD-102 or SC-900 are building toward the parts of the job market that AI augments rather than eliminates.

Is MS-900 Worth It in 2026?

For candidates who already hold it, absolutely -- it remains a valid Microsoft Fundamentals credential with no expiration or renewal requirement. For new candidates, MS-900 is no longer available as of March 31, 2026. The replacement AB-900 Microsoft 365 Copilot certification is the path forward. The widget compares MS-900 against AZ-900 and SC-900 across cost, salary signal, difficulty, and career path fit.

How to Get MS-900 Certified: Step by Step

1. Note that MS-900 was retired on March 31, 2026. If you already hold it, no action is needed -- it doesn't expire.
2. For new candidates, check the AB-900 Microsoft 365 Copilot successor exam status at Microsoft Learn.
3. If AB-900 is available, download its study guide and complete Microsoft's free practice assessment.
4. Schedule through Pearson VUE or Certiport.
5. Pass with a score of 700 or higher. Microsoft Fundamentals certifications don't expire and require no renewal.

MS-900 was a practical entry point into the Microsoft 365 ecosystem -- low cost, no prerequisites, and a clear path toward role-based credentials like MD-102 and MS-700. With the exam now retired, AB-900 Microsoft 365 Copilot is the successor to watch. Check the official Microsoft certification page for the latest status.

Reference Resource List

1. MS-900 Official Certification Page -- Microsoft Learn
2. Study Guide for Exam MS-900 -- Microsoft Learn
3. Free Practice Assessments -- Microsoft Learn
4. Microsoft Certification Renewal FAQ -- Microsoft Learn
5. Certifications Refresh: AI-Focused and Fundamentals Updates -- Microsoft TechCommunity
6. MS-900 Salary Data -- ZipRecruiter
7. MS-900 Job Postings -- ZipRecruiter
8. Top Paying Microsoft Certifications -- Skillsoft
9. How Long to Study for MS-900 -- CBT Nuggets
10. Is the MS-900 Worth It -- CBT Nuggets
11. Exam Ref MS-900 Microsoft 365 Fundamentals, 2nd Edition -- Microsoft Press Store
12. MS-900 Cert Prep by Microsoft Press -- LinkedIn Learning
13. MS-900 Course -- Udemy
14. MS-900 Learning Path -- Pluralsight
15. Microsoft 365 Fundamentals MS-900 -- Coursera
16. Microsoft 365 Certified Fundamentals MS-900 Exam Guide -- Packt Publishing
17. MS-900 Free Practice Questions -- Whizlabs
18. MS-900 Jobs on Indeed
19. Pearson VUE -- Microsoft Exams