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AB-900

Course Resource · IT & cloud certifications · 17 mentions · 2 subreddits · discussed in r/AzureCertification, r/O365Certification

Reddit take

Not enough linked mention summaries yet; the source excerpts below are the evidence.

Pros

  • Get the 900’s, sc, ab, az. That will give you intros into the Microsoft stack and certwise they are relatively cheap.
  • AB900 is pretty good and lets you learn about all the admin consoles. It does lean into agents and Purview stuff but nothing too crazy.
  • Parent context: Is AB-900 helpful for early in career people? Reply: It is a replacement of MS-900, so it's a good starting point for understanding basics of M365 services.
  • AZ900, AI901, AB900, SC900 at the very least.
  • If you're starting from scratch I'd advise to go for AB-900. It deals with Copilot and since AI is the future for most organization the certification is a invaluable starting point

Cons

  • AB-900 is a good introduction. But will not get you a job or even an interview. MD-102 will at least get your CV a second look by a recruiter.
  • 900 series tests are basically teasers that show you know the bare minimum. MD102 is a substantial real cert. MD102 is notable on an entry level resume, AB900 is not.
  • I do feel like the AB-900 was way harder than the SC-900. I do not work with sentinel and only a little recently with purview so those questions had me wrecking my brain a bit.
  • I feel like AB-900 - an actual fundamentals exam - is harder than AB-730 and AB-731.

Sentiment

13 positive (76%) · 3 mixed (18%) · 1 negative (6%)

Trust + time weighted score: +70% · raw score 71%

What redditors said (10 of 17)

AB-900 is a good introduction. But will not get you a job or even an interview. MD-102 will at least get your CV a second look by a recruiter.
mixed · u/s****s · r/O365Certification · comment · Aug 24, 2026 · open on Reddit ↗
Get the 900’s, sc, ab, az. That will give you intros into the Microsoft stack and certwise they are relatively cheap.
positive · u/E**1 · r/O365Certification · comment · Aug 24, 2026 · open on Reddit ↗
900 series tests are basically teasers that show you know the bare minimum. MD102 is a substantial real cert. MD102 is notable on an entry level resume, AB900 is not.
mixed · u/b****u · r/O365Certification · comment · Aug 24, 2026 · open on Reddit ↗
AB900 is pretty good and lets you learn about all the admin consoles. It does lean into agents and Purview stuff but nothing too crazy.
positive · u/S****2 · r/AzureCertification · comment · Jul 25, 2026 · open on Reddit ↗
I do feel like the AB-900 was way harder than the SC-900. I do not work with sentinel and only a little recently with purview so those questions had me wrecking my brain a bit.
negative · u/h****0 · r/AzureCertification · Jul 22, 2026 · open on Reddit ↗
Parent context: Is AB-900 helpful for early in career people? Reply: It is a replacement of MS-900, so it's a good starting point for understanding basics of M365 services.
positive · u/A****6 · r/AzureCertification · comment · Jul 9, 2026 · open on Reddit ↗
AZ900, AI901, AB900, SC900 at the very least.
positive · u/b****o · r/AzureCertification · comment · Jul 4, 2026 · open on Reddit ↗
If you're starting from scratch I'd advise to go for AB-900. It deals with Copilot and since AI is the future for most organization the certification is a invaluable starting point
positive · u/E****1 · r/AzureCertification · comment · Jul 1, 2026 · open on Reddit ↗
Hello! I just passed mine earlier today. What I did was watch John Savill's AB 900 cram video first before I start reviewing, MS learn, John Christopher's AB-900 udemy course, Chatgpt for flash cards and quizzes after finishing topics, then finish it with John Savill's cram video before taking the exam.
positive · u/r****7 · r/AzureCertification · comment · Jun 29, 2026 · open on Reddit ↗
AI-901, AB-900, SC-900, DP-900, PL-900, AB-730, AB-731. Basically all fundamentals and business professional exams.
positive · u/M****s · r/AzureCertification · comment · Jun 28, 2026 · open on Reddit ↗

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