AB-900
1Identify the core features and objects of Microsoft 365 services
30–35%
2Understand data protection and governance tasks for Microsoft 365 and Copilot
35–40%
3Perform basic administrative tasks for Copilot and agents
25–30%
Exam guide · AB-900
Microsoft Copilot and Agent Administration Fundamentals exam guide
Microsoft doesn’t give an exact number of questions for AB-900: most of its exams have 40 to 60 questions. You get 45 minutes. You need 700 out of 1000 to pass. It costs $99 (in the United States; set by country). Microsoft hasn’t announced a retirement date.
Last updated
The exam at a glance
Microsoft Copilot and Agent Administration Fundamentals (AB-900)
- Time
- 45 min
- Prerequisites
- None
- Level
- Beginner
- Role
- For beginners in any role
- Renewal
- Doesn’t expire
- Exam code
- AB-900
From Microsoft’s own pages, checked every week (last on November 7, 2026). The cost is checked every week too. How we check our facts
Versions and dates
What’s changing, and when
Microsoft hasn’t announced a retirement date for AB-900. We check Microsoft’s site every week, and this page changes the day it does.
Exam domains
What the exam covers
Each domain’s share of the exam, as Microsoft publishes it. Spend your study time in the same proportion.
Prepare
Start on AB-900 today
Free tools to find your weak domains and plan your weeks, then full practice exams in OpenpassAI.
Free practice test
10 AB-900 questions
Original questions across the exam’s domains, each with an explanation, and your score by domain.
Take the testFree study plan
A week-by-week plan
Pick your exam date and weekly hours, and get a plan weighted like the domains above.
Make my planMicrosoft certifications
Where Copilot and Agent Admin Fundamentals fits
Every Microsoft certification on one map, with each exam’s facts checked weekly.
See the Microsoft page
Take it further in OpenpassAI
Full AB-900 practice exams
Timed exams weighted like the real one, an AI tutor that explains every answer, and a readiness score for each domain.
FAQs
Got Questions? We’ve Got Answers.
Find quick answers or contact our support team.
How many questions are on the Microsoft Copilot and Agent Administration Fundamentals exam?
Microsoft doesn’t give an exact number for AB-900: most of its exams have 40 to 60 questions. You get 45 minutes.
What is the passing score for Microsoft Copilot and Agent Administration Fundamentals?
You need 700 out of 1000: the same for every Microsoft technical exam.
How much does the Microsoft Copilot and Agent Administration Fundamentals exam cost?
$99 (in the United States; set by country). Check Microsoft’s site for the price in your country.
When does AB-900 retire?
Microsoft hasn’t announced one yet. We check Microsoft’s site every week, and this page changes the day it does.
What experience do I need for Microsoft Copilot and Agent Administration Fundamentals?
None: Microsoft sets no prerequisites for AB-900. Knowing the exam’s domains well is what counts.
How should I study for Microsoft Copilot and Agent Administration Fundamentals?
Weight your time like the exam: Understand data protection and governance tasks for Microsoft 365 and Copilot carries the most (35–40%). Take the free practice test to find your weakest domains, make a study plan around them, and before you book, sit full-length timed practice exams until you pass them comfortably.
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