AB-900
Microsoft 365 Certified: Copilot and Agent Administration Fundamentals
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Microsoft 365 Certified: Copilot and Agent Administration Fundamentals - commonly referenced by its exam code, AB-900 - is a beginner-level Microsoft Certification that demonstrates your ability to support, secure, and protect an AI-enabled Microsoft 365 environment. It sits at the Administrator role level with an artificial intelligence subject focus, so it suits IT administrators, service desk staff, and early-career cloud professionals who already touch Microsoft 365 day to day and now need to extend that work to Copilot and agents.
The credential assumes familiarity with Microsoft 365 core services, security, identity and access, data protection, and governance, plus the admin centers used to reach workloads such as Exchange Online, SharePoint, Teams, Microsoft Entra, and Microsoft Purview. Candidates should also have practical exposure to AI-driven productivity tools and modern IT management practices.
The assessment is proctored, runs 45 minutes, and may include interactive components alongside standard items. It covers three broad areas: the core features and objects of Microsoft 365 services; data protection and governance tasks for Microsoft 365 and Copilot; and basic administrative tasks for Copilot and agents.
Preparation works best in that order - learn the objects and admin surfaces first, then governance and protection controls, then hands-on Copilot and agent administration. Microsoft publishes a study guide, an exam sandbox for question types, and a practice assessment through AI Skills Navigator. This page is an independent study resource and is not affiliated with or endorsed by Microsoft.
What you'll study
About AB-900 preparation
How long is the AB-900 exam, and is it proctored?
Microsoft states you have 45 minutes to complete the assessment, and the exam is proctored. Plan for check-in and setup time on top of the 45 minutes. You may encounter interactive components during the exam, so budget a little review time at the end rather than spending every minute on the final questions.
What question formats should I expect?
The exam page notes that you may have interactive components as part of the exam, so expect a mix rather than a single format - typically standard selected-response items combined with hands-on style interactions. Microsoft offers an Exam Sandbox demo so you can practice the look, feel, and question types in the same interface before exam day.
What happens if I fail? How soon can I retake it?
If you fail, you can retake the exam 24 hours after the first attempt. For subsequent retakes, the waiting time varies, so check Microsoft's full exam retake policy before scheduling again. Use the gap to review your weakest objective area rather than immediately rebooking.
What is the passing score for AB-900?
The exam and certification pages do not publish a passing score, so treat any specific number you see elsewhere with suspicion. Your score report after the attempt is the authoritative source. Aim for broad competence across all three assessed areas rather than trying to hit a target percentage.
How difficult is this exam?
It is listed at the beginner level with an Administrator role and an artificial intelligence subject focus, so it is an entry point rather than a deep specialist exam. The challenge is breadth: Microsoft 365 objects, identity and security fundamentals, governance, and Copilot administration together. Hands-on familiarity matters more than memorization.
What should I study first?
Start with core Microsoft 365 features and objects - users, groups, teams, sites, libraries - and the admin centers where you manage them, including Exchange Online, SharePoint, Teams, Microsoft Entra, and Microsoft Purview. Then move to data protection and governance controls, and finish with hands-on Copilot and agent administration tasks.
Do I need hands-on experience before taking it?
Yes. Microsoft expects candidates to be familiar with Microsoft 365 core services, security, identity and access, data protection, and governance, along with Copilot and agents. Experience with AI-driven productivity tools and modern IT management practices, plus the admin centers for the main workloads, is assumed rather than taught by the exam.
In what languages is the exam offered?
According to the exam page, it is offered in English, Arabic (Saudi Arabia), Japanese, Chinese (Simplified), Chinese (Traditional), Korean, German, French, Indonesian (Indonesia), Italian, Portuguese (Brazil), Russian, and Spanish. Availability of a specific language on a given date depends on scheduling through the testing provider.
How much does the exam cost?
The price is based on the country or region in which the exam is proctored, and the source pages do not state a fixed amount. Check the current price shown when you schedule through Pearson VUE, or through Certiport if you are a student or educator, since student pricing and programs differ.
Which account should I register with?
Microsoft strongly recommends registering with a personal Microsoft account (MSA). If you register with an organizational work or school account, your exam records will be lost if you leave that organization, and they will be unrecoverable. Use a personal account even if your employer is paying for the attempt.