What Is A AB-900?

What Is AB-900, Exactly?

AB-900 is the exam code for Microsoft 365 Certified: Copilot and Agent Administration Fundamentals, a credential built by Microsoft Corporation. If you've landed here after seeing "AB-900" attached to unrelated fields, insurance codes, or other industries, that's a coincidence of naming - this site covers only the Microsoft exam tied to Microsoft 365, Copilot, and agent administration. Nothing else on this page borrows facts from another program using the same acronym.

At its core, AB-900 validates that a candidate understands how Microsoft 365 services function, how organizational data is protected and governed within that ecosystem, and how administrators configure and manage Copilot along with the agents built on top of it. It sits at the Fundamentals tier, meaning Microsoft designed it to be approachable for people who are newer to Microsoft 365 administration rather than for deep technical specialists.

For a broader breakdown of what the acronym represents and how it's used across Microsoft's certification naming conventions, see AB-900 Meaning and What Does AB-900 Stand For?.

Who Creates and Delivers AB-900

Microsoft owns and publishes the AB-900 exam content, meaning the objectives, domain weights, and skills measured all trace back to Microsoft's own product teams for Microsoft 365, Copilot, and identity/governance tooling. Delivery, however, runs through third-party testing infrastructure:

• Pearson VUE - the primary proctored testing provider for most candidates.
• Certiport - also listed as an option, generally used by students and educators taking the exam through academic testing centers.

Both paths lead to the same Microsoft-issued credential; the choice mostly comes down to which testing network is more accessible to you. If you're weighing eligibility questions before you book anything, AB-900 Requirements 2026: Eligibility, Prerequisites & How to Qualify walks through what Microsoft does and doesn't require.

The Three AB-900 Exam Domains

AB-900 is organized around three published domains. These domain names reflect the current credential page, and Microsoft has already flagged an English-language update planned for October 14 - a future date relative to this writing on September 19, 2026. The domain names below match the current page, though the prior full outline for the older version wasn't recovered, so treat the weightings as the most recently confirmed figures.

For a deeper walk through each domain's likely question themes and how they connect to real Microsoft 365 admin work, see AB-900 Exam Domains 2026: Complete Guide to All 3 Content Areas.

Exam Format, Timing, and Scoring

AB-900 is delivered as a proctored, computer-based exam with the possibility of interactive item types, though the exact mix of question formats isn't publicly disclosed. What's confirmed:

• The exam itself runs 45 minutes.
• Your total appointment window is 65 minutes, which includes check-in and any pre-exam steps beyond the timed test.
• Passing requires a scaled score of 700 out of 1000 - this is not the same as needing 70% of questions correct, since scaled scoring weights items differently.
• Exact total question counts, and how many are scored versus unscored, are not disclosed by Microsoft for this exam. The commonly cited 40-60 question range across Microsoft exams generally is not a confirmed guarantee specifically for AB-900.
• The exam is offered in English, with no in-exam access to Microsoft Learn documentation during the test.

Because scaled scoring works differently from raw percentage-correct grading, it's worth understanding precisely what 700/1000 implies before test day. AB-900 Passing Score 2026: Exactly What You Need to Pass breaks this down further.

If you're trying to gauge how challenging the exam feels relative to other Fundamentals-level tests, How Hard Is the AB-900 Exam? Complete Difficulty Guide 2026 and AB-900 Pass Rate 2026: What the Data Shows address difficulty and outcome data without relying on unverified numbers.

Registration, Delivery, and Fees

Registration happens through Pearson VUE for most candidates, with Certiport as an alternate path for students and educators. Both support remote proctored delivery, so you don't necessarily need to travel to a physical test center depending on your setup and region.

On cost: the official U.S. checkout fee for AB-900 has not been independently verified at the time of writing. You may see a $99 figure referenced by third parties, but that number is not confirmed as Microsoft's official current pricing - treat it as a rough reference point rather than a guarantee. It's also worth noting that the exam fee, any prep materials or courses you purchase, and Copilot licensing costs (if your organization needs them for hands-on practice) are all separate charges. Member versus non-member pricing tiers don't apply to this exam.

For a fuller pricing breakdown that separates what's confirmed from what's speculative, check AB-900 Certification Cost 2026: Complete Pricing Breakdown. And if you're mapping out when to actually sit the exam relative to the upcoming English update, AB-900 Exam Dates 2026: Testing Windows, Deadlines & Scheduling is the place to check scheduling specifics.

Who Should Take AB-900

Microsoft lists no formal degree requirement, no prior credential prerequisite, and no minimum experience or training-hour requirement for AB-900. That said, "no formal requirement" doesn't mean "no useful background." Candidates are expected to already have some familiarity with:

• Microsoft 365 as a platform - its services and administrative structure
• Identity concepts relevant to Microsoft 365 environments
• Governance principles as they apply to organizational data
• Basic Copilot administration concepts

In practice, this makes AB-900 a natural fit for IT support staff moving into administrative roles, Microsoft 365 administrators formalizing their Copilot knowledge, governance and compliance staff who need to understand the administrative side of AI tools, and technical decision-makers evaluating Copilot rollouts. It's also accessible to students and educators via the Certiport delivery path.

If you're researching which teams or job titles actually value this credential day to day, AB-900 Jobs covers the roles where this fundamentals-level knowledge tends to show up in job postings and internal upskilling plans.

For a closer look at whether the effort and cost make sense for your specific career stage, Is the AB-900 Certification Worth It? Complete ROI Analysis 2026 and AB-900 Salary Guide 2026: Complete Earnings Analysis offer a more detailed lens - without relying on invented salary figures.

How to Approach AB-900 Preparation

Given that Domain 2 (data protection and governance) carries the heaviest weight at 35-40%, your preparation time should reflect that imbalance rather than splitting evenly across all three domains. A reasonable sequencing looks like this:

This is intentionally a light-touch schedule rather than a rigid formula - the point is that Domain 2's weight should shape how you allocate hours, not that every candidate needs exactly four weeks. For a more exhaustive study plan with resource recommendations, AB-900 Study Guide 2026: How to Pass on Your First Attempt goes further into materials and practice strategy. A condensed one-page review close to test day can also help; see AB-900 Cheat Sheet 2026: One-Page Review of Must-Know Facts.

Running realistic timed practice under exam-like conditions is one of the more reliable ways to get comfortable with the 45-minute constraint before your real appointment - you can try a set of practice questions modeled on the domain weights over on the main practice test site.

What Happens After You Pass

One aspect of AB-900 that differs from many role-based Microsoft certifications: this Fundamentals credential does not expire, and it carries no renewal assessment or continuing-education requirement. Once you pass, the credential stands without a recurring maintenance cycle.

This makes it a reasonably low-maintenance addition to a resume or LinkedIn profile compared to certifications that require annual renewal exams. If you want a general overview of what the credential represents once earned - separate from exam mechanics - AB-900 Certification and What Is AB-900 Certification? cover that framing in more depth. For structured learning paths that build toward the exam, AB-900 Training is worth reviewing before you commit to a study timeline.

If you're still deciding whether to book your exam or want a quick refresher on the essentials before diving into full study materials, browsing practice questions on the practice test platform is a low-commitment way to gauge your current baseline against the three domains covered above.

Frequently Asked Questions