AZ-900 vs MS-900: Which Azure Certification to Do First UK 2026
Which certification should you take first?
If you're aiming for an Azure or cloud infrastructure career, start with AZ-900. If you're targeting Microsoft 365 administration or hybrid IT environments, go with MS-900 first. Both are foundational, but they teach different things and suit different job paths. The choice depends entirely on which direction your IT career is heading, not on difficulty or prestige.
This matters because many people treat them as interchangeable entry points. They're not. Taking the wrong one first wastes time and money, and you might end up studying for a role that doesn't match where you actually want to work.
Understanding the two certifications
What is AZ-900 (Azure Fundamentals)?
AZ-900 is Microsoft's cloud-focused foundation exam. It covers:
The exam is 45 minutes, 30 to 40 multiple-choice questions, and you need around 70% to pass. It's hands-on light, mostly conceptual. Most people study 2 to 4 weeks before sitting it.
AZ-900 is the gateway to Azure Administrator (AZ-104), Azure Solutions Architect (AZ-305) and other Azure-specific roles. If you're planning a cloud infrastructure career, this is the first stepping stone.
What is MS-900 (Microsoft 365 Certified Fundamentals)?
MS-900 is Microsoft's 365 ecosystem foundation. It covers:
The exam is also 45 minutes, 30 to 40 questions, 70% pass mark. Like AZ-900, it's conceptual rather than hands-on deep. Most people prepare in 2 to 3 weeks.
MS-900 leads toward Microsoft 365 Administrator (MS-101) and Teamwork Administrator (MS-101) paths. If your interest lies in managing cloud-based productivity suites and supporting end users, MS-900 is the logical first move.
The real difference: job market outcomes
Here's where this matters in 2026. Both certifications open doors, but different ones.
AZ-900 is better if you want:
MS-900 is better if you want:
The UK job market shows consistent demand for both, but Azure roles tend to progress faster in salary once you move beyond fundamentals. MS-900 suits you if you like supporting users and managing business applications rather than infrastructure.
Deciding based on your background
Coming from healthcare IT support?
If you've worked in healthcare IT or primary care, you've likely managed on-premises systems, user queries and maybe some hybrid setups. MS-900 feels more natural because it covers the 365 ecosystem you probably already know partly. You can take AZ-900 after, once you've got that first cert and built confidence.
That said, if your NHS trust is moving toward cloud-first infrastructure (and most are), jumping straight to AZ-900 positions you for the bigger migration wave.
Coming from general IT support or helpdesk?
You've troubleshot software, managed tickets, maybe handled some cloud apps. Both certifications work, but MS-900 is gentler because it covers the tools you've likely supported. AZ-900 introduces concepts that feel more foreign (virtual machines, container registries, managed databases) but it's not harder, just different.
Already familiar with cloud concepts?
If you've read up on cloud, done some labs, or worked with AWS before, go straight to AZ-900. You'll find the Azure-specific terminology new, but the concepts less alien.
Timeline and effort comparison
Both certifications take roughly the same effort:
The real difference is not how long they take, but what you do with them afterward.
AZ-900 typically leads to AZ-104 (Azure Administrator) within 3 to 6 months. That's a 6 to 9 month journey from zero to job-ready for cloud support.
MS-900 typically leads to MS-101 (Microsoft 365 Administrator) in 2 to 4 months. That's a faster runway to entry-level Microsoft 365 admin work.
Which fits SmoothOps 365?
At SmoothOps 365, we run the Azure Administrator Programme (£1,000, 3 months) and the Microsoft 365 Administrator Programme (£850, 3 months), both Coming Soon/waitlist only. If you're unsure which path aligns with your career goals and current IT background, our free AI career pathway tool asks the right questions to help you decide. Visit smoothops365.com/roadmap to get a personalised recommendation in minutes, especially helpful if you're coming from healthcare IT.
Both programmes assume no prior cloud experience and teach to the role, not just the exam. But which entry-level cert you pick first should match where you're actually headed.
Frequently asked questions
Can I do both AZ-900 and MS-900 at the same time?
Technically yes, but not recommended. You'd be studying two different cloud ecosystems simultaneously, which confuses concepts and wastes overlap study time. Do one, pass it, then move to the other. Most people do both within 6 months once they've committed to cloud IT, but separately.
Is one easier to pass than the other?
Not really. Both have the same pass mark (70%), same exam length, and similar difficulty distribution. AZ-900 feels harder if you've never seen cloud infrastructure; MS-900 feels harder if you're not familiar with the 365 product suite. Pick based on what's familiar to you, not perceived difficulty.
Do employers prefer one over the other?
Not in 2026. Both are seen as entry-level proof of concept in their respective domains. Employers care more about the role-based cert you pursue next (AZ-104 or MS-101) than which fundamentals cert you took first. That said, if a job advert mentions Azure, they'd prefer you have AZ-900on your CV; if it mentions 365 management, MS-900 is the better signal.
How long does each certification last?
Both AZ-900 and MS-900 are valid for 2 years. After that, you need to renew by retaking the exam or (more commonly) earning a higher-level cert in that pathway, which automatically renews your fundamentals cert. Most people move to AZ-104 or MS-101 before the 2 years are up anyway.
Will getting one cert make the other easier to pass?
Some overlap exists (both cover cloud concepts, security basics, licensing models) but they're distinct enough that passing one doesn't significantly reduce study time for the other. They're complementary, not sequential. Many cloud IT professionals hold both, but you'll study each fully.
SmoothOps 365 runs live instructor-led training every Saturday and Sunday. 3 months. 50 contact hours. Keep your job while you train.