AB-400
1Build Microsoft Power Platform solutions
15–20%
2Extend the user experience
25–30%
3Extend Microsoft Power Platform
35–40%
4Develop integrations
10–15%
Exam guide · AB-400
Microsoft Power Platform Developer Associate exam guide
Microsoft doesn’t give an exact number of questions for AB-400: most of its exams have 40 to 60 questions. You get 100 minutes. You need 700 out of 1000 to pass. It costs $165 (in the United States; set by country). Microsoft hasn’t announced a retirement date.
Last updated
The exam at a glance
Microsoft Power Platform Developer Associate (AB-400)
- Time
- 100 min
- Prerequisites
- None
- Level
- Intermediate
- Role
- Power Platform Developer
- Renewal
- Yearly, free
- Exam code
- AB-400
From Microsoft’s own pages, checked every week (last on November 7, 2026). The cost is checked every week too. How we check our facts
Versions and dates
What’s changing, and when
Microsoft hasn’t announced a retirement date for AB-400. We check Microsoft’s site every week, and this page changes the day it does.
Exam domains
What the exam covers
Each domain’s share of the exam, as Microsoft publishes it. Spend your study time in the same proportion.
Prepare
Start on AB-400 today
Free tools to find your weak domains and plan your weeks, then full practice exams in OpenpassAI.
Free practice test
10 AB-400 questions
Original questions across the exam’s domains, each with an explanation, and your score by domain.
Take the testFree study plan
A week-by-week plan
Pick your exam date and weekly hours, and get a plan weighted like the domains above.
Make my planMicrosoft certifications
Where Power Platform Developer fits
Every Microsoft certification on one map, with each exam’s facts checked weekly.
See the Microsoft page
Take it further in OpenpassAI
Full AB-400 practice exams
Timed exams weighted like the real one, an AI tutor that explains every answer, and a readiness score for each domain.
FAQs
Got Questions? We’ve Got Answers.
Find quick answers or contact our support team.
How many questions are on the Microsoft Power Platform Developer Associate exam?
Microsoft doesn’t give an exact number for AB-400: most of its exams have 40 to 60 questions. You get 100 minutes.
What is the passing score for Microsoft Power Platform Developer Associate?
You need 700 out of 1000: the same for every Microsoft technical exam.
How much does the Microsoft Power Platform Developer Associate exam cost?
$165 (in the United States; set by country). Check Microsoft’s site for the price in your country.
When does AB-400 retire?
Microsoft hasn’t announced one yet. We check Microsoft’s site every week, and this page changes the day it does.
What experience do I need for Microsoft Power Platform Developer Associate?
None: Microsoft sets no prerequisites for AB-400. Knowing the exam’s domains well is what counts.
How should I study for Microsoft Power Platform Developer Associate?
Weight your time like the exam: Extend Microsoft Power Platform carries the most (35–40%). Take the free practice test to find your weakest domains, make a study plan around them, and before you book, sit full-length timed practice exams until you pass them comfortably.
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