AB-400 (formerly PL-400) practice examsFinished
Microsoft Certified: Power Platform Developer Associate
AB-400, formerly PL-400. Extending Power Platform with code: designing where logic and data belong, ALM with solutions and pipelines, client script and PCF components in model-driven apps, Power Apps code apps, plug-ins in the event pipeline, the Web API and Azure Functions, cloud flows and Copilot Studio workflows, Foundry agents through MCP, and integration through Dataverse events, change tracking and custom connectors.
What you get
Papers are cut from the bank and weighted like the real exam, and no question appears in two of them. Every wrong answer comes back on later days until you have it right.
What the exam covers
| Build Microsoft Power Platform solutions | 15-20% |
| Extend the user experience | 25-30% |
| Extend Microsoft Power Platform | 35-40% |
| Develop integrations | 10-15% |
Two sample questions
1. What does an agent flow in Copilot Studio consist of?
- A prompt and a knowledge source
- A topic and at least one entity
- A trigger and at least one action — correct
- A plug-in and a registered step
Why: An agent flow consists of a trigger and at least one action, and can run manually, on events or agents, or on a schedule.
2. Which error appears when a global choice set prefix is missing?
- A delegation warning
- An incompatible types error
- An OptionSetValue error — correct
- A required column error
Why: A column tied to a global choice set needs the choice set name prefix, or you get an OptionSetValue error.
The real AB-400 (formerly PL-400) exam
| Length | 100 minutes |
|---|---|
| Questions | 40 to 60 |
| Pass mark | 700 on a scale of 1000 |
| Price | Purchased per attempt through Pearson VUE |
| Recommended before you sit it | None enforced. Development experience and familiarity with the Power Platform are assumed. |
| Valid for | 1 year, renewable free of charge online |
Exam facts as published by Microsoft; always check the vendor’s page before you book.
Study AB-400 (formerly PL-400) with Chiron
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