Azure AZ-104 vs AZ-900: Which Certification Should You Take First as a UK Career Changer

If you're moving from healthcare, administration, or any non-tech background into cloud roles, you've probably seen both the AZ-900 and AZ-104 certifications mentioned in the same breath. The question "which do I do first" sounds simple, but the answer actually shapes your entire learning timeline and job readiness. I'll cut straight to it: take AZ-900 first if you have no cloud experience. Take AZ-104 first only if you've already spent weeks learning core cloud concepts elsewhere. Most career changers in the UK need the AZ-900 foundation, though many feel tempted to skip it.

The Core Difference: Foundation vs Hands-On Admin

The AZ-900 (Azure Fundamentals) is a 60-minute multiple-choice exam covering broad Azure concepts: what virtual machines are, how storage works, what identity services do, and how governance fits together. It has no labs. It doesn't ask you to build anything. It tests knowledge of terminology and concepts.

The AZ-104 (Azure Administrator) is a 90-minute practical exam with scenario-based questions, case studies, and live labs. You'll be asked to configure a virtual machine, set up networking, manage identities, and troubleshoot permissions. The exam assumes you already know what those things are conceptually. If you don't, you'll spend the first two weeks of AZ-104 study doing the learning you should have done beforehand.

Here's the honest tension: Microsoft markets AZ-900 as "anyone can do this", and technically true. But for career changers aiming at Azure Administrator roles (the common entry point into cloud for career switchers), skipping it often costs more time later, not less.

Why Career Changers Usually Need AZ-900 First

When you've spent five years as a nurse, administrator, or logistics manager, cloud infrastructure isn't part of your mental model. You don't yet have intuition for why you'd use managed identities instead of local accounts, or why a resource group is the natural boundary for RBAC, or what a service principal is. These aren't hard concepts, but they're entirely new.

The AZ-900 teaches you the language. It takes four to six weeks of evening study (if you're working full-time), and it costs £99 to sit the exam. By the end, you've got a certification to show employers, and more importantly, you understand the shape of Microsoft's cloud ecosystem.

Then, when you start AZ-104, you're learning how to build things, not what those things are. That's a completely different cognitive load. You can focus on the hands-on scenarios rather than frantically Googling what a Virtual Network is.

The AZ-104 Study Reality Without AZ-900 Background

If you jump straight to AZ-104 without the AZ-900 foundation (or equivalent self-teaching), here's what typically happens:

Week 1-2: You spend half your study time learning what the technologies are, not how to use them

Week 3-4: You start seeing labs and think "why would I ever do this?" because you don't yet grasp the business problem being solved

Week 5-6: You finally start connecting concepts, but now you're cramming for the exam and feel less confident

Exam day: You pass (many do), but you're shaky on fundamentals and the job interviews are harder

Career changers who've done AZ-900 first report a much faster, more confident journey through AZ-104. The labs feel like solving puzzles rather than following recipe cards.

Timeline: A Realistic Path for Working Professionals

Here's the schedule that works best for UK healthcare workers and career changers studying evenings and weekends:

Weeks 1-6: AZ-900

5-8 hours per week

Online course (Microsoft Learn is free)

Weekly practice tests

Exam at week 6

Weeks 7-12: AZ-104

8-12 hours per week (more intense, hands-on labs)

Structured course with lab access (critical)

Two practice exams

Exam at week 12

Total time: 3 months. Cost: £99 (AZ-900 exam) plus £165 (AZ-104 exam) plus course fees if you don't use free resources.

If you already work in IT (support, help desk, systems administrator), you can often compress this to 7-8 weeks total. If you're brand new to tech, allow 16 weeks.

Is AZ-900 Actually Worth Your Time?

Yes, but not because the credential itself gets you a job. An AZ-900 certification rarely appears in job postings. But as a milestone and confidence-builder, it's invaluable. Here's why:

Employers see you've structured your learning and passed a Microsoft exam (shows you can self-study)

You understand enough cloud concepts to have intelligent conversations in interviews

You avoid the embarrassment of not knowing core terms in technical interviews

You're less likely to hit a wall midway through AZ-104 study

On the flip side, if you're hiring a managed IT service from a cloud provider, or you're working your way through an intensive bootcamp that already teaches cloud fundamentals, you might skip it. But for most self-directed career changers, the two-to-three-week investment pays for itself in confidence and retention.

Salary Context: Does the Order Matter?

Both certifications are entry points into Azure roles. An Azure Administrator (AZ-104) in the UK typically earns £32,000 to £42,000 starting out (depending on region and existing IT experience). The certification itself doesn't determine salary, but your ability to actually do the job does. If you're confident and can talk through troubleshooting scenarios in an interview, you'll negotiate better offers. If you're guessing at concepts, you'll struggle.

The AZ-900 first strategy gives you that confidence.

The SmoothOps 365 Approach: AZ-104 Preparation

Our Microsoft Azure Administrator course assumes some cloud awareness (AZ-900 level thinking) and focuses on the hands-on, lab-based learning that builds real job-ready skills. We run a free two-hour taster session that covers Azure fundamentals in the first hour, then moves into a hands-on lab in the second hour. It gives you a real feel for whether the structured admin track is right for you.

Book onto a free two-hour live session here to experience the hands-on side of Azure learning and see whether the Azure Administrator path fits your career goals.

Frequently asked questions

Can I do AZ-104 without doing AZ-900 first?

Yes, but most career changers without cloud background find it harder. You can self-teach the concepts, but most people need to anyway, and the AZ-900 exam forces you to structure that learning. If you've worked in IT support or systems administration before, you might skip it; if you're brand new to tech, do AZ-900 first.

How much does AZ-900 cost in the UK?

The AZ-900 exam itself costs £99. Microsoft Learn (the official training course) is completely free. If you buy a third-party course (like Udemy or A Cloud Guru), that's another £10 to £30. The whole AZ-900 path costs under £150 if you use free resources.

Will AZ-900 help me get an Azure Administrator job?

Not directly, employers rarely list AZ-900 as a requirement. But it demonstrates you understand cloud concepts, which helps you pass interviews and actually do the job. Think of it as proof you took learning seriously, plus a confidence boost that shows in interview conversations.

How long between passing AZ-900 and starting AZ-104?

You can start immediately. Many people start their AZ-104 course the week after they pass AZ-900. Some take a week break to let concepts settle. Either way, the momentum from passing one exam usually carries into the next one.

Should I get AZ-104 if I'm not aiming to be an Azure Administrator?

AZ-104 is specifically for admin roles (configuring, deploying, monitoring). If you're aiming for developer, security, or data engineering roles, you'd want AZ-700 (Security) or AZ-700 (Networking) instead. Use our free career pathway tool to map which certification actually fits your target role.