Free MB-820 Exam Prep
Microsoft Certified: Dynamics 365 Business Central Developer Associate (MB-820)
Prepare for the MB-820 exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.
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MB-820 Microsoft Certifications License: Complete Roadmap
Follow this path to organize your licensing and exam preparation
Develop by using AL objectsYou are here
Master tables, pages (including Role Centers), enums, reports (RDLC/Word), XMLports, codeunits with events/interfaces, install/upgrade codeunits, permission sets, and queries with joins and aggregation.
Develop by using AL
Practice AL data types, expressions, file management, error handling, access modifiers, profiles/views, user assistance, onboarding patterns, and the Business Central data/document model.
Integrate Business Central with other applications
Build HttpClient REST integrations with JSON, expose API pages with OData, configure OAuth/Microsoft Entra ID app registrations, and apply Read Scale-Out for performance.
Work with development tools and deployment
Run the Test Toolkit, write test codeunits, configure telemetry and the performance profiler, enable AppSourceCop/CodeCop/UICop, and master app.json/launch.json deployment.
Can You Take the MB-820 Exam?
Check if you meet the basic eligibility requirements
- •Pass MB-820 exam with 700/1000 or higher
- •Annual free renewal via Microsoft Learn (Associate-level)
MB-820 Quick Facts
Time to Get Licensed
6-10 weeks typical study time
From start to license in hand
Retake Policy
First retake after 24 hours; subsequent retakes after 14 days. Maximum of 5 attempts per 12 months. Each attempt requires payment.
Total Cost Breakdown
Free MB-820 Prep Tools
Reported exam pass rate: ~60-70% for well-prepared candidates with hands-on AL development experience. Check the exam sponsor for the latest official figure.
100 Practice Questions
Coverage across all six MB-820 skill areas with detailed AL explanations
AI-Powered Learning
Explanations for AL syntax, events, performance, and AppSource policy
2026 Updated
Aligned with the June 10, 2025 skills measured update
Free Access
Practice MB-820 questions with no signup required
What You'll Study
17 chapters covering the exam topics in this guide
Chapter 1: Business Central Architecture & Platform Foundation
3 sections
Chapter 2: Development Environment & Configuration
3 sections
Chapter 3: Extension Lifecycle: Debugging, Deployment, Multilanguage & Maintenance
4 sections
Chapter 4: Tables, Table Extensions & Data Modeling
4 sections
Chapter 5: Pages, Page Extensions & Role Centers
4 sections
Chapter 6: Reports & Document Generation
4 sections
Chapter 7: XMLports & Data Exchange
2 sections
Chapter 8: Codeunits, Events, Triggers & Interfaces
4 sections
Chapter 9: Entitlements, Permissions & Queries
3 sections
Chapter 10: UI Customization, User Assistance & Onboarding
3 sections
Chapter 11: Business Central Design Patterns & Data Process Model
3 sections
Chapter 12: AL Language Fundamentals, Data Types & Variables
3 sections
Chapter 13: Data Manipulation, Streams & Error Handling
3 sections
Chapter 14: Testing, Test Toolkit & Automation
2 sections
Chapter 15: Telemetry, Performance Optimization & Analyzers
4 sections
Chapter 16: REST Web Services & JSON in AL
2 sections
Chapter 17: API Pages, OData, Read Scale-Out & OAuth
4 sections
MB-820 Exam Details
Microsoft Certified: Dynamics 365 Business Central Developer Associate (MB-820)
Administered by Microsoft
Exam Content Breakdown
Based on the official Microsoft content outline
Architecture, components and capabilities, core/extensions approach, update lifecycle for customizations, online vs on-premises differences, base app vs system app, AppSource publishing process
Set up the development environment, manage app.json/launch.json, manage multiple AL workspaces, debug and deploy with Visual Studio Code, multilanguage with XLIFF, maintain extensions over time
Build and extend tables, pages (including Role Centers and page types), enums and enumextensions, reports (RDLC/Word layouts, document/processing-only), XMLports, codeunits with events/triggers/interfaces, install and upgrade codeunits, permission sets, queries with joins/filters/aggregation
Profiles and views in AL, user assistance/teaching tips/in-app tours/onboarding checklist, Business Central data process model, document and master data patterns, custom procedures, AL data types and expressions, file management, error handling, access modifiers
Test Toolkit and test codeunits/procedures, semiautomated test processes, telemetry monitoring/configuration, custom telemetry signals via Session.LogMessage, performance profiler, AppSourceCop/CodeCop/UICop/PerTenantExtensionCop analyzers
HttpClient REST integration, JSON read/write, OData/SOAP web services, API pages with $expand and $filter, OData bound and unbound actions, Read Scale-Out, OAuth 2.0/Microsoft Entra ID app registrations
What's Included
17 Chapters
Complete exam coverage
Practice Quizzes
With detailed explanations
Free to Start
No credit card required
Quality Exam Prep Shouldn't Cost Hundreds
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What's Next After the MB-820?
After passing the MB-820, you can pursue these career paths
MB-800
Functional consultant counterpart for D365 Business Central (configures the same product MB-820 developers extend)
PL-400
Power Platform Developer Associate (Dataverse, Power Apps, Power Automate code-first integrations)
AZ-204
Azure Developer Associate for cloud services that integrate with Business Central via APIs and OAuth
MB-820 Exam FAQ
Official Microsoft Resources
Verify information with these official sources
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