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Microsoft Microsoft Dynamics 365 ✓ Updated May 2026

Microsoft Power Apps + Dynamics 365 Developer

Exam Code: MB-400
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About the MB-400 Exam

The Microsoft MB-400 exam, officially titled 'Microsoft Power Apps + Dynamics 365 Developer,' is a specialized certification for developers who design, build, and extend custom business applications using the Microsoft Power Platform and Dynamics 365. This exam validates your ability to implement solutions that integrate with Common Data Service (now Microsoft Dataverse), create model-driven and canvas apps, automate workflows with Power Automate, and build custom connectors. As a Microsoft certification, MB-400 is critical for professionals aiming to demonstrate deep technical expertise in the Power Platform ecosystem, which is increasingly adopted by organizations worldwide to streamline operations, enhance customer engagement, and drive digital transformation.

This exam is tailored for experienced developers who have a strong understanding of the Power Platform's extensibility capabilities, including the use of JavaScript, TypeScript, C#, and the Power Apps Component Framework (PCF). It covers key areas such as creating custom business logic with plugins and custom workflows, configuring security roles and field-level permissions, and implementing solution management strategies. In real-world scenarios, MB-400-certified professionals are tasked with building complex applications that unify data from multiple sources, automate approval processes, and provide real-time insights through dashboards. The exam ensures you can handle end-to-end development cycles, from gathering requirements to deploying and maintaining solutions in production environments.

Why does MB-400 matter? With the rapid adoption of low-code platforms like Power Apps and Dynamics 365, organizations need skilled developers who can bridge the gap between citizen developers and enterprise-grade solutions. This certification validates your ability to create scalable, secure, and maintainable applications that leverage the full power of the Microsoft ecosystem. Earning this credential not only enhances your career prospects but also positions you as a key asset in driving business agility and innovation. For developers looking to specialize in the Power Platform or Dynamics 365, MB-400 is a must-have certification that demonstrates advanced technical proficiency and a commitment to staying current with Microsoft's evolving technology stack.

Who Should Take the MB-400 Exam?

The MB-400 exam is designed for experienced developers who have at least two years of hands-on experience with the Power Platform and Dynamics 365, including proficiency in JavaScript, TypeScript, C#, and the Power Apps Component Framework. Typical job roles include Power Platform Developer, Dynamics 365 Developer, and Solutions Architect. Candidates should have a solid understanding of Microsoft Dataverse, model-driven and canvas app development, and Power Automate. While there are no strict prerequisites, prior experience with the Power Platform or Dynamics 365 is highly recommended to succeed in this exam.

Topics Covered in MB-400

📊
Creating custom business logic with plugins and workflows
📜
Building model-driven and canvas apps with Power Apps
💡
Implementing Power Automate flows for automation
🛡️
Integrating with Microsoft Dataverse and Common Data Service
🏗️
Using Power Apps Component Framework (PCF) for custom controls
🔧
Managing solutions and application lifecycle management (ALM)
⚖️
Configuring security, roles, and field-level permissions
🎯
Developing custom connectors and API integrations

Preparation Tips for MB-400

Focus on hands-on practice with creating custom plugins and workflows using C# and the Power Platform SDK, as these are heavily tested on the MB-400 exam.
Master the Power Apps Component Framework (PCF) by building custom controls with TypeScript and testing them in model-driven apps.
Use Microsoft Learn's official learning paths for MB-400, such as 'Create custom business logic with Power Platform' and 'Manage solutions and application lifecycle management'.
Leverage the Microsoft Power Platform community forums and GitHub samples to explore real-world scenarios and common implementation patterns.
Set up a trial Dynamics 365 environment to experiment with solution management, security roles, and integration with Power Automate flows.

Frequently Asked Questions — MB-400

What prerequisites are required for the MB-400 exam?

There are no formal prerequisites for the MB-400 exam, but Microsoft recommends that candidates have at least two years of experience developing with the Power Platform and Dynamics 365. You should be proficient in JavaScript, TypeScript, C#, and the Power Apps Component Framework. Familiarity with Microsoft Dataverse, model-driven apps, and Power Automate is also essential.

How long is the MB-400 exam and what is the passing score?

The MB-400 exam typically lasts 150 minutes and includes 40-60 questions, which may be a mix of multiple-choice, case studies, and performance-based tasks. The passing score is usually around 700 out of 1000, but this can vary slightly. Check the official Microsoft exam page for the most up-to-date details.

What topics are covered in the MB-400 exam?

The MB-400 exam covers several key areas: creating custom business logic with plugins and workflows, building model-driven and canvas apps, implementing Power Automate flows, integrating with Microsoft Dataverse, using the Power Apps Component Framework, managing solutions and application lifecycle management, configuring security roles and permissions, and developing custom connectors. A detailed skills measured document is available on the Microsoft website.

How many questions are in the ExamsTree MB-400 study guide?
The ExamsTree MB-400 PDF study guide contains 65+ practice questions with detailed answer explanations, all mapped to the official Microsoft exam objectives.

Why Choose ExamsTree?

ExamsTree MB-400 Study Guide is developed by experienced certification professionals with deep knowledge of Microsoft technologies. Our team thoroughly researches each exam domain to provide comprehensive, accurate coverage.

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Exam Details
Vendor Microsoft
Questions 65+
Format PDF
Updated 5/24/2026
Cert Microsoft Dynamics 365
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