Microsoft AB-650 is Microsoft’s replacement for MS-102, and it is the exam to target if you are starting Microsoft 365 certification prep after August 2026. MS-102 stays valid only until it retires on November 30, 2026. Both Microsoft exams share the same passing score of 700 (out of 700). Microsoft does not publish official pass rates for either exam, so treat any specific pass-rate figure you see elsewhere as an unverified third-party claim.
This Microsoft AB-650 vs MS-102 comparison rates MS-102 as the harder exam to prepare for on paper: it sits at the Expert certification tier, while AB-650 sits at the Associate tier. Realistic prep time for MS-102, reported by multiple training providers, runs 4 to 10 weeks for someone with active Microsoft 365 admin experience. AB-650 is newer, so third-party study-time benchmarks for it are still limited compared to MS-102’s established track record.
What Is the Difference Between AB-650 and MS-102?
| Factor | MS-102 | AB-650 |
| Full exam name | Microsoft 365 Administrator | Administering Microsoft 365 and AI Services |
| Certification earned | Microsoft 365 Certified: Administrator Expert | Microsoft 365 Certified: AI Services Administrator Associate |
| Level | Expert, requires a second exam | Associate, single exam |
| Prerequisitecertification | MD-102, Teams Administrator Associate, or SC-300 (one required) | None listed |
| Retirement / GA timeline | Retires Nov 30, 2026 | General availability expected Oct 2026 |
| Number of domains | 4 | 3 |
| Passing score | 700/1000 | 700/1000 |
| Dedicated AI/Copilot domain | No | Yes (35-40% of exam) |
Is MS-102 Retiring, and When Exactly?
Yes. The MS-102 retirement date, according to Microsoft’s own exam page, is November 30, 2026, at 11:59 PM Central Standard Time. This is the current, authoritative date as of this article’s last update.
Note the discrepancy still circulating online: Microsoft’s original June 25, 2026 announcement referenced an October 2026 retirement window. Several third-party guides published in July and August 2026 still repeat “October 2026.” The exam page itself is the more current and more precise source. If you complete MS-102 before the November 30 cutoff, it still applies toward Administrator Expert; after that date, you must use the replacement certification path instead.
What Structural Change Does Microsoft AB-650 Bring?
Microsoft MS-102 was never a standalone certification. To earn Microsoft 365 Certified: Administrator Expert, you had to pass MS-102 and hold at least one of three associate certifications:
- Microsoft 365 Certified: Endpoint Administrator Associate (MD-102)
- Microsoft 365 Certified: Teams Administrator Associate
- Microsoft Certified: Identity and Access Administrator Associate (SC-300)
AB-650 replaces that two-exam structure with a single exam. Its certification page lists no prerequisite certification, and its “Related exams” field reads “none.” One passed exam earns Microsoft 365 Certified: AI Services Administrator Associate outright.
How Do the Exam Domains Compare?
The Microsoft AB-650 vs MS-102 domains compared side by side show where the real content shift sits.
- MS-102 domains ( updated April 28, 2026):
Here are the major exam areas tested in exam, as outlined in the Microsoft MS-102 exam guide:
| Domain | Weight |
| Deploy and manage a Microsoft 365 tenant | 10-15% |
| Implement and manage Microsoft Entra identity and access | 25-30% |
| Manage security and threats using Microsoft Defender XDR | 35-40% |
| Manage compliance using Microsoft Purview | 15-20% |
- AB-650 domains (as of July 27, 2026):
Here are the key exam areas as outlined in the Microsoft AB-650 exam guide:
| Domain | Weight |
| Configure and manage Microsoft 365 tenants and workloads | 20-25% |
| Govern and secure Microsoft 365 tenants and workloads | 40-45% |
| Manage and secure AI services in Microsoft 365 | 35-40% |
Both exams weigh security and governance heaviest.
MS-102 puts 35-40% into Defender XDR alone; AB-650 folds identity, Defender, and Purview governance plus AI/Copilot oversight into a single 40-45% domain, then adds a separate 35-40% domain purely for AI services, a category MS-102 does not test at all.
Discover More: Microsoft AB-650 Exam Guide 2026: A Runbook for an Exam Microsoft Has Not Finished Publishing
What’s New in AB-650 That MS-102 Doesn’t Cover?
AB-650’s AI-services domain tests skills with no MS-102 equivalent, including:
- Assessing tenant readiness for Microsoft 365 Copilot, including data oversharing and data-leak risks
- Configuring Microsoft 365 Copilot Search and Copilot in admin centers
- Managing Microsoft 365 Copilot Cowork
- Managing the lifecycle of agent identities through Microsoft Entra Agent ID
- Securing and governing agents through Agent 365, including sensitive-data protection and compliance-gap evaluation
- Monitoring AI service costs and usage through the Copilot Control System
- Using Microsoft Purview Data Security Posture Management (DSPM) for AI activity
What Experience Does Each Exam Recommend?
Microsoft publishes recommended background knowledge for both exams. Neither is a hard prerequisite, but both signal what the exam assumes you already know.
MS-102 recommended experience:
- Functional experience with all Microsoft 365 workloads and Microsoft Entra ID
- Working knowledge of networking
- Working knowledge of Active Directory Domain Services
- Working knowledge of DNS
- Working knowledge of PowerShell
AB-650 recommended experience:
- Experience with Microsoft 365 workloads and Microsoft Entra ID
- An understanding of Defender XDR capabilities
- Familiarity with Microsoft Graph PowerShell specifically, not general PowerShell
- The practical gap:
AB-650 assumes Defender XDR familiarity walking in, while MS-102 still teaches Defender XDR from a lower baseline inside its own 35-40% security domain. AB-650 also names Microsoft Graph PowerShell specifically rather than general PowerShell, matching its heavier weight on bulk identity, licensing, and agent management tasks.
Learn More: Microsoft AB-650 Study Plan: 4-Week Fast Track vs. 6-Week Full Track
How Much Does Each Exam Cost?
| Exam | Standard price (US) | Current status |
| MS-102 | $165 USD | Full price, no active discount identified |
| AB-650 | $165 USD standard associate rate | Launch discount expired |
The AB-650 exam cost matches the MS-102 exam cost once promotional pricing ends: both sit at the standard associate/expert rate.
Microsoft prices exams by the country or region where the exam is proctored and does not publish a single global figure (both exam pages, above). AB-650’s launch period included an 80% discount for the first 300 candidates using code AB-650SkyClub, valid through August 18, 2026. That offer has expired. Budget the standard rate.
You can learn more about AB-650 cost here: How Much Does the Microsoft AB-650 Exam Cost in 2026?
What’s the Exam Format for Each?
| Detail | MS-102 | AB-650 |
| Passingscore | 700/1000 (confirmed) | 700/1000 (confirmed) |
| Questioncount | Not published by Microsoft; third-party estimates cite roughly 40-60 items | Not yet published |
| Duration | Not published by Microsoft; third-party estimates cite 100-120 minutes | Not published |
| Scoring delivery | Immediate | Not yet published |
| Deliverymethod | Pearson VUE, test center or online proctored | Pearson VUE, test center or online proctored |
Microsoft does not publish exact question counts or timing for any current role-based exam. Treat specific numbers from prep vendors as estimates, not official specifications.
Do Employers Still Require MS-102?
Some do, as of late August 2026. Example: a U.S.-based Systems Administrator (Contract) role posted in August 2026 explicitly lists “Microsoft 365 Administrator Expert (MS-102)” as a required certification alongside AZ-104.
This reflects a common lag: job description templates are typically written against established, generally-available exam codes, and AB-650 has not yet reached GA. Expect job postings to reference MS-102 or “Administrator Expert” through at least the exam’s November 30, 2026 retirement, with a gradual shift toward AB-650-specific language once its certification reaches general availability.
Which Exam Should You Take: MS-102 or AB-650?
- You are more than 80% through MS-102 prep and can test before November 30, 2026: finish MS-102. A passed exam before the deadline still counts toward Administrator Expert.
- You are starting from zero after August 31, 2026: go straight to AB-650. Most new MS-102 study plans (4-10 weeks) would finish too close to, or after, the retirement date.
- Your job posting or internal role profile specifically names MS-102: confirm with your employer whether they will accept AB-650 and the AI Services Administrator Associate credential once it reaches general availability, since the two certifications are formally distinct.
- You need to validate Copilot, AI agent, or AI governance skills specifically: AB-650 is the only current option. MS-102 has no AI-services domain at all.
- You’re weighing cost as the deciding factor: it isn’t one. Both exams sit at the same standard $165 USD associate/expert rate once promotional pricing ends, so base cost doesn’t favor either path.
Explore Further: Is AB-650 Difficult? An Honest 2026 Difficulty Breakdown
Does This Comparison Apply Outside the United States?
Pricing for both exams is set by the country or region where you sit the exam, not a flat global rate (both official exam pages). Two additional regional factors:
- Language availability differs.
MS-102 is available in English, Chinese (Simplified), German, Spanish, French, Japanese, and Portuguese (Brazil). AB-650 is currently listed in English only (both official exam pages, above). Test-takers in Europe, India, Australia, or Canada relying on a non-English version of MS-102 have a narrower prep window: localized versions update roughly 8 weeks after the English version, which was last revised April 28, 2026.
- Launch discount region exclusions applied.
The now-expired AB-650 discount was explicitly unavailable in Turkey, Pakistan, India, and China. This has no bearing on standard pricing going forward, but it explains why some India-based candidates paid full price during the discount window while candidates elsewhere did not.
What comes next? Jobs After AB-650: Which Roles, Salaries, and Career Paths Open Up in 2026?
Frequently Asked Questions (FAQs)
Is AB-650 replacing MS-102?
Yes. Microsoft introduced AB-650 as the direct successor covering the Microsoft 365 administrator role, though the certification it leads to, Microsoft 365 Certified: AI Services Administrator Associate, is formally a separate credential from Administrator Expert (structural comparison above).
Is MS-102 still worth taking in 2026?
Only if you can pass it before November 30, 2026, since it cannot be used to earn Administrator Expert for the first time after that date. If your target job postings still name MS-102 specifically and your exam date fits before the cutoff, it remains valid; otherwise AB-650 is the forward-looking path.
Will my MS-102 certification still be valid after it retires?
Yes. If you pass before November 30, 2026, 11:59 PM CST, the exam still counts toward Administrator Expert and stays on your transcript. After that date, the exam itself can no longer be taken to earn the certification for the first time.
Can I take AB-650 without passing MS-102 or any other exam first?
Yes. AB-650’s official exam page lists no prerequisite certification and shows.
Is AB-650 harder than MS-102?
Microsoft has not published a comparative difficulty rating for either exam. By domain structure, AB-650 concentrates more of its content into fewer, larger domains (75-85% combined across two domains) than MS-102’s four more evenly distributed domains, and it adds an entirely new AI-services domain with no MS-102 equivalent.
How much will AB-650 cost once its launch discount period is fully behind it?
Microsoft has not published a fixed long-term price. Standard associate-level exams in the US are commonly priced at $165 USD once out of any promotional period.
Is AB-650 fully available now, or still rolling out?
Microsoft AB-650 is currently in beta. Microsoft targeted October 2026 for general availability in its June 2026 credentials announcement. A beta pass carries the same weight as a pass earned after general availability once scoring finalizes.
