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Microsoft MB-400 : Microsoft PowerApps + Dynamics 365 Developer

MB-400

Exam Code: MB-400

Exam Name: Microsoft PowerApps + Dynamics 365 Developer

Updated: Oct 13, 2026

Q & A: 65 Questions and Answers

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About Microsoft MB-400 Exam

What is the duration, language, and format of MB-400: Microsoft Power Apps + Dynamics 365 Developer Exam

  • Type of Questions: This test format is multiple choice.
  • Number of Questions: 40 to 60 questions(Since Microsoft does not publish this information, the number of exam questions may change without notice.)
  • It is a Beta exam.
  • Passing Score: 700 / 1000
  • language: English
  • Length of Examination: 50 mins

Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/mb-400?wt.mc_id=learningredirect_certs-web-wwl

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Languages: English

This exam measures your ability to accomplish the following technical tasks: create a technical design; configure Common Data Service (CDS); create and configure Power Apps; configure business process automation; extend the user experience; extend the platform; and develop integrations.

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Topics of MB-400: Microsoft Power Apps + Dynamics 365 Developer Exam

Candidates should apprehend the examination topics before they begin of preparation. because it'll extremely facilitate them in touch the core. Our MB-400 exam dumps will include the following topics:

1. Create a Technical Design (10-15%)

Validate requirements and design technical architecture

  • Determine whether requirements can be met with out-of-the-box functionality
  • Determine when to use serverless computing vs. plug-ins
  • Design and validate technical architecture
  • Design authentication and authorization strategy
  • Determine when to use Logic Apps vs. Microsoft Flow
  • Determine when to build a virtual entity data source provider vs. when to use connectors

Create a data model

  • Design a data model

2. Configure Common Data Service (CDS) (15-20%)

Configure security to support development

  • Troubleshoot operational security issues
  • Create or update security roles and field-level security profiles

Implement entities and fields

  • Configure entities
  • Configure relationships
  • Configure fields

Create and maintain solutions

  • Manage solution dependencies
  • Configure solutions
  • Import and export solutions

3. Create and Configure PowerApps (10-15%)

Create model-driven apps

  • Configure visualizations
  • Configure forms
  • Configure views
  • Configure a model-driven app

Create Canvas Apps

  • Configure a Canvas App
  • Develop complex expressions

4. Configure business process automation (10-15%)

Configure Microsoft Flow

  • Configure actions to use CDS connectors
  • Develop complex expressions
  • Configure a Flow

Implement processes

  • Create and configure business rules
  • Create and configure business process flows

5. Extend the user experience (15-20%)

Apply business logic using client scripting

  • Configure supporting components
  • Create JavaScript or Typescript code
  • Register an event handler
  • Use the Web API from client scripting

Create a PowerApps Component Framework (PCF) component

  • Implement the component interfaces
  • Use Web API device capabilities and other component framework services
  • Initialize a new PCF component
  • Package, deploy, and consume the component
  • Configure a PCF component manifest

Create a command button function

  • Modify the form JavaScript library dependencies
  • Edit the command bar using the Ribbon Workbench
  • Create the command function
  • Design command button triggers, rules, and actions

6. Extend the platform (15-20%)

Create a plug-in

  • Create custom actions
  • Register custom assemblies by using the Plug-in Registration Tool
  • Debug and troubleshoot a plug-in
  • Optimize plug-ins for performance
  • Develop a plug-in
  • Use the Organization Service

Configure custom connectors for PowerApps and Flow

  • Configure API security
  • Create a definition for the API
  • Use policy templates

Use platform APIs

  • Interact with data and processes using the Web API
  • Optimize for performance, concurrency, transactions, and batching
  • Use OAuth with the platform APIs
  • Perform entity metadata operations with the Web API
  • Perform discovery using the Web API

7. Develop Integrations (10-15%)

Publish and consume events

  • Publish an event by using the Plug-in Registration Tool
  • Create an Azure event listener application
  • Register a webhook
  • Publish an event by using the API

Implement data synchronization

  • Configure the data export service to integrate with Azure SQL Database
  • Create and use alternate keys
  • Configure and use entity change tracking

Exam MB-400: Microsoft Power Apps + Dynamics 365 Developer

This exam retired on December 31, 2020. A replacement exam, PL-400, is available. For more information, visit the PL-400 exam details page.

Candidates for this exam are Developers who work with Microsoft Power Apps model-driven apps in Dynamics 365 to design, develop, secure, and extend a Dynamics 365 implementation. Candidates implement components of a solution that include application enhancements, custom user experience, system integrations, data conversions, custom process automation, and custom visualizations.

Candidates must have strong applied knowledge of Power Apps model-driven apps in Dynamics 365, including in-depth understanding of customization, configuration, integration, and extensibility, as well as boundaries and constraints. Candidates should have a basic understanding of DevOps practices for Power Apps model-driven apps in Dynamics 365. Candidates must expose, store, and report on data.

Candidates should have development experience that includes JavaScript, TypeScript, C#, HTML, .NET, Microsoft Azure, Office 365, RESTful Web Services, ASP.NET, and Power BI.

Part of the requirements for: Microsoft Certified: Power Apps + Dynamics 365 Developer Associate

Download exam skills outline

Microsoft MB-400 Exam Syllabus Topics:

SectionObjectives
Topic 1: Develop Power Apps Solutions- Customize UI/UX and app behavior using formulas and controls
- Build canvas apps and model-driven apps
Topic 2: Implement Dataverse and Data Modeling- Create and manage tables, relationships, and business rules
- Work with data integration and dataflows
Topic 3: Integrate and Extend Power Platform- Integrate external systems using connectors and APIs
- Extend platform using custom connectors and Azure services
Topic 4: Design Solutions- Analyze business requirements and translate to Power Platform architecture
- Select appropriate Power Platform components (Power Apps, Dataverse, Power Automate)
Topic 5: Implement Security and Governance- Configure role-based security in Dataverse
- Manage environment strategy and governance policies

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