Business Central Developer Associate certification (MB-820)

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I have been working as a Business Central technical developer for about 1.5 years, and I’m planning to take the Business Central Developer Associate certification (MB-820). I feel it’s the right time to earn this certification.

For those who have already taken the exam, I’d appreciate your advice: My exam is scheduled in 5 weeks, but I only have 4 weeks available to prepare.

How should I structure my study plan to make the most of my preparation time?

I’m especially interested in any tips on the most important topics to focus on, resources you found helpful, and strategies for effective last-minute preparation. I’m open to any recommendations.

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Dynamics 365 Business Central

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Kamal Khakhkhar 1,586 on at

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Hii there ,

as per sugession in exam almost questions are as per our daily development related tasks.

as i had given exam i refer the following link from microsoft learn .

https://learn.microsoft.com/en-us/credentials/certifications/d365-business-central-developer-associate/?practice-assessment-type=certification

https://learn.microsoft.com/en-us/training/browse/?expanded=dynamics-365&products=dynamics-business-central&roles=developer&resource_type=learning%20path

from this 2 links you will got all the required things for exam.

If you found answer mark it answered.

Thank You,

Kamal Khakhkhar

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Sohail Ahmed 11,154 Super User 2025 Season 2 on at

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I have some resources and practice dumps (though I’m not sure if it’s okay to mention this on a Microsoft platform). I’m using them as test exams along with the Microsoft Learn platform to prepare for my certification. If you're interested, I’d be happy to share the same dumps my friend used as practice — he passed his exam just last month.

✅ Mark this answer as verified if it helps you.

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Teddy Herryanto (Th... 14,284 Super User 2025 Season 2 on at

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Use Microsoft Learn and do practice as much as possible.

Note that you can still open and browse Microsoft Learn while doing the exam.

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YUN ZHU 96,039 Super User 2025 Season 2 on at

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I don't know if the current questions have been updated. I took the exam during the Beta test because I can use MS Learn to search during the exam. As long as I have enough time, I believe you can pass the exam.
For other less popular knowledge points, you can learn some of the following keywords.

Technologies for application lifecycle management (ALM), including source control management (SCM) and continuous integration and continuous delivery (CI/CD).

Substitute a report

Override entitlements with inherent permissions

Use a query to create a report

Create an onboarding checklist

Test applications in Business Central

Install and run the Test Toolkit

Develop test codeunits and procedures

Monitor and analyze telemetry

Configure telemetry

Create custom telemetry signals

Thanks.

ZHU

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Andrés Arias 4,192 Super User 2025 Season 2 on at

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Hello,

I would recommend taking the Learn course and completing the labs:

https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/mb-820

https://learn.microsoft.com/en-us/credentials/certifications/d365-business-central-developer-associate/?practice-assessment-type=certification

https://github.com/MicrosoftLearning/MB-820-Business-Central-Developer-Certification

I hope I can help.

Regards,

Andres

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Gerardo Rentería Ga... 25,396 Most Valuable Professional on at

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Hi, good day
I hope this can help you, and give you some hints.

You searched for MB-820 - Business Central Musings

Business Central MB-820 Developer Certification Ultimate Guide - Business Central Geek

Microsoft Certified: Desarrollador asociado de Dynamics 365 Business Central - Certifications | Microsoft Learn

Best Regards
Gerardo

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Jeffrey Bulanadi 8,764 on at

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Hi

Great timing, I just passed MB-820 which is a solid next step for someone with technical experience in Business Central. With 4 weeks to prepare, you’ll want a focused, structured plan that balances theory, hands-on practice, and mock testing.

Here’s how I’d recommend structuring your study:

Week 1: Foundation & Environment Setup

Review Business Central architecture, deployment models, and app structure

Set up your AL development environment with Visual Studio Code

Explore Microsoft Learn’s MB-820 Study Guide

Suggested modules:

Install and configure the development environment

Understand the update lifecycle

Week 2: AL Objects & Page/Table Extensions

Focus on tables, pages, enums, reports, and XMLports

Practice building and extending objects

Key topics:

Page types and layouts

Report design and layouts

XMLport configuration

Reference: Develop by using AL objects (35–40%)

Week 3: AL Language & Development Tools

Deep dive into AL syntax, triggers, events, and interfaces

Practice writing test codeunits and using the Test Toolkit

Explore telemetry and debugging techniques

Suggested modules:

Work with codeunits and events

Implement telemetry

Week 4: Integration & Mock Testing

Study API development, OData, and REST integrations

Build a sample extension that connects to an external service

Take multiple practice exams to identify weak areas

Recommended resource: EduSum MB-820 Practice Tests

Exam Tips

The exam has 40–60 questions, 120 minutes, and a passing score of 700/1000

Focus heavily on AL object development and integration topics

Use the Exam Sandbox to get familiar with the interface

Here’s a helpful breakdown of the MB-820 exam domains:

https://yzhums.com/41513/

If you find this helpful, feel free to mark this as the suggested or verified answer.

Cheers
Jeffrey

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SilverAdo2021 598 on at

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For everyone interested to study for and pass MB-820, a new booklet series dedicated to this exam is available.

MB-820 Exam Cram: Install & Upgrade Codeunits in Business Central! -- More booklets to drop soon ...

This focused, practical guide is now available on Leanpub:
**Get your copy here → https://leanpub.com/mb-820InstallUpgrade**Why this booklet exists
If you're preparing for the Microsoft Dynamics 365 Business Central Developer (MB-820) certification, you know that Install and Upgrade Codeunits are a key exam topic (part of the "Develop codeunits" skill area). They also happen to be one of the most important — and sometimes tricky — concepts when building real-world, production-ready extensions for AppSource or customer projects.

Many junior and mid-level developers struggle with:

Understanding exactly when each codeunit runs (and when it doesn't!)

Mastering the Upgrade Tags pattern that Microsoft uses in the Base Application

Making upgrades idempotent, safe, and performant

Handling advanced patterns like DataTransfer, ModuleInfo, ExecutionContext, and proper debugging during upgrades

This book dives deep into these topics with clear explanations, real-world code examples inspired by Microsoft's own Base Application (like patterns from E-Document, VAT Group, and No. Series modules), practical scenarios, and MB-820-style practice questions.

Here’s a quick overview of what you’ll find inside:

Introduction to extension lifecycle and why install/upgrade codeunits matter

Install Codeunits — triggers, per-company vs. per-database, fresh install vs. reinstall

Upgrade Codeunits — preconditions, main upgrade logic, validation, and best practices

Upgrade Tags Deep Dive — the three-codeunit pattern, tag naming conventions, and how to avoid common pitfalls

Advanced Topics — DataTransfer for efficient data migration, version detection, execution context protection

Common Scenarios & Solutions — real-life migration examples, troubleshooting tips

MB-820 Exam Tips — focused prep advice, key gotchas, and practice questions

The book builds directly on my popular "Let's pass MB-820" YouTube series (starting with Episode 1 on this exact topic) and brings everything together in a concise, exam-oriented cram format.Who is this for?

Junior to intermediate AL developers preparing for MB-820

Consultants and partners building reliable, upgradable extensions

Anyone who wants to replicate Microsoft's proven upgrade patterns in their own apps

Leanpub perks

DRM-free — Download in PDF, EPUB, and WEB formats

Free lifetime updates — As I add more content or refine explanations, you'll get them automatically

Reader-powered pricing — Minimum $8.00 (suggested $10.00) — you choose what feels right

60-day 100% happiness guarantee — Full refund if it's not what you expected

Whether you're gearing up for the certification in 2026 or just want to level up your extension development skills, this book will give you the confidence to handle install and upgrade logic like a pro.

Thank you to everyone who's followed the YouTube series, read the blog posts on svirlan.com, and supported the journey so far — your feedback and encouragement made this possible!

Grab your copy today and let's crush that MB-820 exam together!

Buy now on Leanpub

Happy coding,
Silviu Virlan
Microsoft MVP for Business Applications | MCP
Business Central Musings – YouTube & Blog

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