MS-900, MB-910 & MB-920 Are Retiring! Meet the New AB-900 AI Workplace Fundamentals

Microsoft is retiring the MS-900, MB-910, and MB-920 by the end of 2025. Here’s what’s changing and what replaces them. In this video, I’ll walk you through:
✅ Which exams are retiring and when
✅ Why Microsoft is making this change (hint: Copilot & AI everywhere)
✅ What’s replacing them — the brand-new AB-900 AI Workplace Fundamentals exam
✅ What we know so far about its structure, skills measured, and how it builds on MS-900
✅ A sneak peek at Microsoft’s upcoming AI Architect certification

If you’re planning to get certified in Microsoft 365 or Dynamics 365, this update is a must-watch. The clock is ticking if you want to add the retiring credentials to your transcript — and the new AB-900 is shaping up to be the go-to certification for the AI era.

Video Summary

Microsoft is retiring MS-900, MB-910, and MB-920 by the end of 2025, so if you’re planning to take them, now’s the time. The good news? They’ll stay on your transcript forever.

The new AB-900: AI Workplace Fundamentals exam is coming, and it’s not just a rebrand—it’s a major upgrade. Think MS-900, but with Copilot, AI, and a whole lot more admin content packed in.

AB-900 covers three big pillars: core Microsoft 365 concepts (like identity and security), data protection and governance with Copilot, and hands-on admin tasks for Copilot and agents—including licensing, monitoring, and lifecycle management.

This exam is dense—possibly double the content of MS-900, and I wouldn’t be surprised if Microsoft turns it into a two-day class like PL-900. Honestly, it feels more like an associate-level exam than a fundamentals one.

More AI-focused certifications are on the way, and while I can’t share details yet, I’ve seen what’s coming. So if you want to stay ahead in the AI era, AB-900 is your starting point—and yes, I’ll be creating a full prep course for it soon!

For more information, read the transcript blog below, or watch the video above!

Transcript

Microsoft is retiring some of its most popular fundamental certifications, including the MS-900, MB-910, and MB-920. If you’re planning to get certified, this is a pretty big change. I’ll walk you through what’s going away and what’s replacing it. We’ll cover everything from which exams are retiring, why Microsoft is making the change, and what the new AI Workplace Fundamentals exam is—because yes, we have a confirmed new certification coming that looks quite different compared to the old MS-900.

Let’s start with the retirements. In a blog post on the Microsoft Tech Community, Microsoft announced that several fundamentals exams will be retired by the end of 2025. This includes some of the most popular fundamentals exams, such as the MS-900 (Microsoft 365 Certified Fundamentals), MB-910 (Microsoft Dynamics 365 Fundamentals CRM), and its sibling MB-920 (Dynamics 365 Fundamentals ERP). If you’re studying for those, you can still take them until December 31, 2025. After that, they’re gone. So if you want to take them, now is the time. The cool thing with fundamentals is that they technically never expire—they’ll stay on your transcript forever.

You might wonder why Microsoft is retiring them. Let’s be honest—it’s no secret that Microsoft has one thing on their mind: Copilot. We’ve seen the rebrands where everything is now Copilot. M365 has been renamed to Copilot, and 365 apps have been renamed to Copilot. So far, the learning department has been spared, but it’s now time for those rebrands to also make it to Microsoft Learn. Microsoft said that it’s time to evolve certifications for an AI-driven, agent-first future. In plain terms, fundamentals need to reflect today’s workplace, and that means Copilot and AI are front and center.

Now, enough with the sad news. The good news is that we do have some new certifications coming up. There are two new exams that we know about for sure. Let me start with the expert certification. A few months ago, I published a video on my channel talking about how we might see Microsoft merge the PL-600 Power Platform Architect and MB-700 Dynamics 365 Architect into one AI Architect exam. Microsoft has confirmed they are working on an expert certification to validate AI-first expertise, including advanced skills in generative AI, multi-agent orchestration, and agentic design using Microsoft Copilot Studio, Azure AI services such as Foundry, and Dynamics 365. There’s no news yet on exactly what’s inside or if the PL-600 and MB-700 will retire. However, that definitely seems to be the exam I talked about in my previous video.

Now let’s move over to the fundamentals exam. This one, we have more information on. First of all, we have the exam number: AB-900. The name is AI Workplace Fundamentals. It looks like we’re going to get a brand-new code for the exams—AB—which I think stands for AI and Business Applications. This maps to how Microsoft reorganized the business, where AI and Business Applications are one of the organizations inside Microsoft.

We know more because Microsoft did a survey that gave us information on it. Honestly, I feel like it’s an evolution from the MS-900 exam, but it adds a lot of Copilot into i,t as well as more administration than I expected. Some of the things that candidates should be able to do include identifying the core features and objects of Microsoft 365 services, which seem to come straight from the MS-900. After that, it switches over to AI. Candidates need to understand data protection and governance tasks for M365 and Microsoft 365 Copilot, as well as perform basic administrative tasks for Microsoft 365 Copilot and agents.

Looking deeper at the details, the first big pillar is basically almost all of the MS-900. It covers the identity and core objects of M365, as well as Microsoft 365 security principles such as Zero Trust, Defender XDR, and Entra ID. You’ll need to understand things such as single sign-on, conditional access policies, secure score, privileged identity management (PIM), and more.

Then we have two more pillars that got added. First, understanding data protection and governance tasks for Microsoft 365 and M365 Copilot, which covers Microsoft Purview and things such as information protection, data loss prevention, insider risk management, DSPM, and more. This pillar also includes understanding data security implications for Microsoft 365 Copilot, including how Copilot accesses data, how the Microsoft Graph influences Copilot responses, and how permissions work in the scope of Copilot. I’m a big fan of this one—it also includes SharePoint advanced management features such as data access governance reports and restricted content discoverability.

We then move over to the final pillar: performing basic administrative tasks for Microsoft 365 Copilot and agents. This is really interesting as it focuses purely on Copilot, with objectives such as understanding the built-in features of Microsoft 365 Copilot, features of agents in SharePoint and M365 Copilot, and custom agents. It includes understanding the licensing model for both monthly and pay-as-you-go features, which will be a tough one to keep up to date. It also includes analyst and researcher roles, so you’ll need to know those as well.

Finally, we have admin tasks for both Copilot and agents, with features such as assigning Copilot licenses, monitoring Copilot adoption, and managing prompts. For agents, you’ll need to know how to manage user access, how to create an agent, how to get it approved, and how to manage its lifecycle from both the M365 Admin Center and the Power Platform Admin Center.

So, what do I think about this? That is a lot of content. This truly seems like they took the MS-900 exam and put it on steroids—with double the content it had before. I do wonder if Microsoft will plan to make this a two-day class like they did for the PL-900, instead of a one-day class like the MS-900 was, in order to cover all the content. But yeah, this will be a ton of content, and I’m surprised—and honestly maybe a little disappointed—that there seems to be a ton of admin content in this AB-900 exam. I truly wish that Microsoft gave us a dedicated fundamentals or maybe associate-level exam to cover all the admin centers, reports, and permissions for Copilot, instead of having one fundamentals exam that covers it all—for business users, information workers, and admins. Give us that admin exam that covers Purview, Defender, and how to manage M365 agents. That deserves its own exam. Right now, we’re going to have this huge fundamentals exam that will be as much content as an associate-level exam.

I’m really excited about it, that’s for sure. I cannot wait to take it. I cannot wait to create content on it. I mean, I already have all the content out there—it’s just not packaged into the certification yet. So I look forward to creating a dedicated certification prep course for it. But it will be a lot of content. I hope I’ll be able to take the beta exam—hopefully it works out at Ignite. Microsoft will have the beta out there, but it’s not confirmed yet. So let’s see what Microsoft has in store for us.

While I can’t give the specifics yet, I know for sure that Microsoft is working on more exams that have to do with AI. This will probably build on the AB—AI and Business Solutions—and they’ll probably build up this new pillar, this new bucket of certifications. I can’t talk about them yet. I’ve seen the titles. I’ve seen some of the subjects they’re working on. But I’ll make sure to do a video on them as soon as I can. So make sure you subscribe to the channel.

This has been a bit longer video than I intended, but we covered a lot of content. So if you’re eyeing the MS-900, MB-910, or MB-920, the clock is ticking—you’ve got until the end of 2025 to take them. And if you want a fundamental certification that stays relevant in the AI era, AB-900 is the one to watch. Let me tell you something cool: if you want to take the MS-900, there’s a current promotion as I’m recording this video where you can get up to 50% off the exam. Let me know in the comments—what do you think about the AB-900?