Dynamics 365 Business Central Developer Associate
The MB-820 exam is designed for professionals who implement and configure Business Central. It validates your ability to describe Business Central, install, develop, and deploy for Business Central, develop by using AL objects, develop by using AL, work with development tools, and integrate Business Central with other applications.
MB-820 domain practice questions
Use focused question sets for each official MB-820 skills measured area. Each set contains 10 original, reviewed questions with explanations and links to Microsoft Learn evidence.
Exam details
- Certification
- Dynamics 365 Business Central Developer Associate
- Exam code
- MB-820
- Level
- Associate
- Duration
- Approximately 100 minutes
- Questions
- Typically 40–60 questions
- Passing score
- 700 out of 1000
- Cost
- USD $165 — typical price; the exact fee varies by country/region and currency, and local taxes may apply.
- Prerequisites
- None required
- Languages
- English (also available in Japanese, Spanish, French, German and several other languages)
- Delivered by
- Pearson VUE
- Renewal
- Free online assessment, every 12 months
Skills measured
Describe Business Central (10–15%)
- Describe architecture, extensions, the customisation update lifecycle, and online versus on-premises.
- Differentiate the base app and system app and describe bringing an app to AppSource.
Install, develop, and deploy for Business Central (10–15%)
- Install and configure the AL development environment and workspaces.
- Create, debug, deploy, and maintain extensions in Visual Studio Code, including multilanguage.
Develop by using AL objects (35–40%)
- Build and extend tables, pages, enums, and Role Centers.
- Build reports, XMLports, codeunits, events, and interfaces.
- Create permission sets, entitlements, and queries.
Develop by using AL (15–20%)
- Customise profiles, views, assisted setup, teaching tips, and onboarding.
- Apply data process, document, and master data design patterns.
- Use AL types, procedures, error handling, and access modifiers.
Work with development tools (10–15%)
- Implement tests with the Test Toolkit, test codeunits, and procedures.
- Configure, monitor, and emit custom telemetry signals.
Integrate Business Central with other applications (10–15%)
- Call REST services with HTTP classes and JSON.
- Implement APIs, OData bound and unbound actions, and Read Scale-Out.
Study resources & practice tests
Looking specifically for exam questions? See the dedicated MB-820 practice test page.
Frequently asked questions
Who should take MB-820?
MB-820 is for Business Central developers, AL developers, and ERP technical consultants. Most work at Microsoft ISVs, in partner development teams, or at mid-market manufacturers and distributors.
What is the average salary for a Business Central Developer?
As of 2026, US Dynamics technical consultants and developers commonly earn about $120,000 to $175,000. In the United Kingdom, Business Central developers are typically £50,000 to £70,000. In Germany, Business Central AL developers are about €60,000 to €75,000 at professional level and €75,000 to €90,000 at senior. There is no single published EMEA average.
Where do I find exam questions to practice?
You will find websites selling exam dumps or brain dumps that claim to be real MB-820 questions. Those materials are not official. Microsoft treats using brain dumps as cheating. It can invalidate your score, revoke certifications you already hold, and ban you from future exams. Microsoft publishes a free Practice Assessment for MB-820 on Microsoft Learn. Those questions are examples only, not the live exam. You can try the Microsoft exam sandbox to see the question types and timer, but it does not use real exam questions. Practise the skills measured in a real product environment rather than memorising leaked items.
Does the exam include official labs I can use to practice?
Microsoft does not ship a public, official MB-820 exam lab you can log into on your own. Dynamics exams are usually case studies and traditional items, not Azure-style live labs. Practise in a product trial or sandbox (Business Central, finance and operations apps, or customer engagement, depending on the exam). Official instructor-led MB-820T00 training delivered by a Microsoft Learning Partner includes labs. Those labs are for the course, not a copy of the exam. The Microsoft exam sandbox shows traditional question types only. It does not give you the lab virtual machine.