AssociateMB-820
Dynamics 365 Business Central Developer Associate
Validate expertise developing AL extensions, integrations, and customizations for Dynamics 365 Business Central.
Study Hours
40h
Prep Time
~3 months
Avg. Pass Rate
71%
Topics Covered
AL Development
Business Central Extensions
APIs
Integration
Testing
Skills measured
Official study guideMicrosoft's own objectives, in the order the exam presents them. Each area links to its section on Microsoft Learn. Checked 2026-10-26.
Describe Business Central10–15%
This area on Microsoft LearnDescribe the Business Central architecture
- Describe the components and capabilities of Business Central
- Describe the core solution and extensions approach for Business Central
- Describe the update lifecycle for customizations of Business Central
- Differentiate Business Central online and Business Central on-premises features
Describe Business Central apps
- Differentiate between the base app and the system app
- Describe the functionality of apps
- Describe the process of bringing an app to AppSource
Install, develop, and deploy for Business Central10–15%
This area on Microsoft LearnInstall and configure a Business Central development environment
- Describe the development environment for Business Central
- Install and configure the development environment
- Manage configuration files for an AL extension
- Manage multiple AL extensions in one workspace
Create, debug, and deploy an extension in Business Central
- Debug an extension with Visual Studio Code
- Deploy an extension
- Create or modify a Business Central extension in Visual Studio Code
- Manage multilanguage development
- Maintain extensions
Develop by using AL objects35–40%
This area on Microsoft LearnBuild and extend tables and pages in Business Central
- Develop Role Center pages
- Identify different page types
- Build and extend page objects
- Build and extend tables
- Build and extend enums
Build and extend reports
- Substitute a report
- Create a report layout
- Create document reports
- Design the data model of a report
- Implement multilanguage in reports
- Use report triggers, functions, and processing-only reports
- Develop the report request page
Design and create an XMLport
- Configure different XMLport properties
- Configure nodes and their properties
- Use XMLports in AL code
Develop codeunits
- Create and access codeunits
- Use events and triggers
- Implement interfaces
- Create installation and upgrade codeunits
Create entitlement and permission set objects
- Create and extend permission sets
- Override entitlements with inherent permissions
- Troubleshoot permission sets
Create queries in Business Central
- Link and join data items
- Apply filters in query objects
- Use queries instead of record variables
- Aggregate data in query objects
- Use a query to create a report
Develop by using AL15–20%
This area on Microsoft LearnCustomize the UI experience, and implement onboarding techniques
- Create profiles in AL
- Use and create views in AL
- Develop the UI by using the user assistance model
- Integrate assisted setup
- Create teaching tips and in-app tours to onboard users
- Create an onboarding checklist
Describe the essential development standards
- Implement the data process model in Business Central
- Define the different functional table types and characteristics
- Use document standards in Business Central
- Implement master data standards and design patterns
Use AL to extend Business Central
- Create custom procedures
- Use data types in code
- Manage files
- Manipulate data by using code
- Describe the basics of the AL
- Use the different types of expressions
- Use AL built-in functions and AL statements
- Work with variables and define them in AL code
- Manage errors
- Use access modifiers to limit access
Work with development tools10–15%
This area on Microsoft LearnImplement semiautomated test processes, and run standard Business Central tests
- Test applications in Business Central
- Install and run the Test Toolkit
- Develop test codeunits and procedures
Manage and analyze telemetry
- Monitor and analyze telemetry
- Configure telemetry
- Create custom telemetry signals
Integrate Business Central with other applications10–15%
This area on Microsoft LearnAccess Representational State Transfer (REST) services from within Business Central
- Use the different HTTP classes and their functions
- Get data from and send data to an external REST service
- Use and read JSON
Implement APIs
- Create and work with APIs
- Create and manage OData bound and unbound actions
- Use Read Scale-Out to improve performance