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Microsoft MB-820 Dumps - Pass Microsoft Dynamics 365 Business Central Developer Exam in 2026
The Microsoft MB-820 exam, Microsoft Dynamics 365 Business Central Developer, belongs to the Microsoft Dynamics 365, Dynamics 365 Business Central Developer Associate certification path. It is designed for developers who work with Business Central customization, extension development, deployment, and integration. This exam matters because it validates practical skills that are important for building and maintaining Business Central solutions in real business environments.
Candidates preparing for MB-820 should understand AL development, AL objects, development tools, deployment tasks, and how Business Central connects with other applications. The exam is a strong fit for professionals who want to prove they can develop effectively for Microsoft Dynamics 365 Business Central.
MB-820 Exam Topics Breakdown
| # | Exam Topics | Sub-Topics | Approximate Weightage (%) |
|---|---|---|---|
| 1 | Develop by using AL | AL syntax and structure, variables and data types, procedures and events, debugging basics | 22% |
| 2 | Install, develop, and deploy for Business Central | Extension setup, packaging and publishing, deployment workflow, environment preparation | 18% |
| 3 | Develop by using AL objects | Tables and table extensions, pages and page extensions, codeunits, reports and XMLports | 18% |
| 4 | Describe Business Central | Core concepts, application areas, solution architecture, business processes | 12% |
| 5 | Work with development tools | Visual Studio Code, AL extension tools, source control basics, testing and troubleshooting | 15% |
| 6 | Integrate Business Central with other applications | APIs and web services, authentication basics, data exchange, external system connectivity | 15% |
| Total | 100% | ||
This exam tests more than theory. It measures your ability to write AL code, work with Business Central objects, use development tools, and handle deployment and integration tasks in practical scenarios. A strong candidate should be comfortable with both conceptual knowledge and hands-on development skills.
How QA4Exam.com Helps You Pass
QA4Exam.com offers the MB-820 Exam PDF with actual questions and answers, along with an Online Practice Test designed to mirror the real exam format. These resources help you study with up-to-date questions, verified answers, and a realistic testing experience. You can practice under timed conditions, improve time management, and identify weak areas before exam day. With focused preparation and real exam simulation, you can build confidence and improve your chances of passing the Microsoft MB-820 exam on your first attempt.
Frequently Asked Questions
1. Who should take the Microsoft MB-820 exam?
The MB-820 exam is intended for developers who want to validate their skills in Microsoft Dynamics 365 Business Central. It is a good fit for candidates working toward the Microsoft Dynamics 365, Dynamics 365 Business Central Developer Associate certification path.
2. Is the MB-820 exam difficult?
The exam can be challenging because it covers AL development, deployment, tools, and integration topics. Candidates with hands-on Business Central experience usually find it easier to handle the practical style of questions.
3. Can I pass MB-820 with only braindumps?
Braindumps alone are not the best approach. You should use them with real study and practice so you understand the concepts behind the answers and can handle different question styles confidently.
4. Do I need hands-on experience to pass the exam?
Hands-on experience is highly recommended because MB-820 focuses on practical development skills. Working with AL, Business Central objects, and deployment tasks helps you understand the exam content more deeply.
5. How do QA4Exam.com dumps and practice tests help me pass in the first attempt?
The Exam PDF gives you actual questions and answers for focused review, while the Online Practice Test helps you simulate the real exam and manage your time better. Using both together can improve accuracy, speed, and confidence before the test.
6. Are the QA4Exam.com questions and answers verified?
QA4Exam.com provides verified answers in its exam PDF and practice test resources. This helps you review with more confidence and focus on the topics most likely to appear in the MB-820 exam.
7. Do the practice tests include real exam simulation?
Yes, the Online Practice Test is designed to give you a realistic exam-style experience. This helps you get used to the format, pacing, and pressure of the actual Microsoft MB-820 exam.
The questions for MB-820 were last updated on Sep 5, 2026.
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You need to create the access modifier for IssueTotal.
Which variable declaration should you use?
In Business Central development using AL (the language for Business Central extensions), the use of access modifiers defines how variables and procedures are accessed within and outside of an object or codeunit.
Access Modifiers in AL:
Public: A public variable can be accessed from any object or codeunit within the same module or extension.
Protected: This restricts access to the current object and objects that inherit from the current object. However, in AL (at least in versions used for Business Central), the Protected access modifier is used with methods but not variables.
Internal: This modifier restricts the visibility to the current extension. This means that variables or methods declared as internal can only be accessed from within the same extension. This is appropriate when you want to provide functionality that is shared within the extension but not exposed externally.
Local: This restricts the variable or method to the current object or method where it is declared. It cannot be accessed from anywhere else, even within the same extension.
Scenario Justification:
In the scenario for Contoso, Ltd., IssueTotal is a global variable in the ISSUE BASE extension, and the ISSUE EXT extension needs to access it. Therefore, the variable cannot be declared as Local, because this would restrict access to just the current object (or method).
Using Public would expose the variable outside of the extension, which is unnecessary because you only want other parts of the extension (specifically the ISSUE EXT extension) to have access.
The best choice in this case is Internal because it restricts access to the variable to within the same extension, which includes the base extension and any dependent extensions like ISSUE EXT. It strikes the right balance between visibility and encapsulation.
Microsoft Dynamics 365 Business Central Developer Reference:
Access Modifiers in AL: Microsoft's documentation on AL provides the details on access modifiers, where it is specified that internal variables can be accessed within the extension, and the public variable is accessible across all extensionssource: Microsoft Learn on AL Programming.
Best Practices for AL Development: Business Central development best practices suggest keeping variables internal unless they need to be accessed outside of the current extensionsource: Microsoft Learn on AL development guidelines.
You need to define the data types for the fields of the N on-conformity table.
Which two data types should you use? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
A company has extended Business Central.
You plan to submit the extension to AppSource.
You need to ensure that an application meets the technical requirements before submitting it for validation.
Which three actions should you perform? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
B. Include extension translation files with the submission.
AppSource submissions require that the extension be localized to different languages, and including translation files is part of the requirement.
C. Ensure the app file is digitally signed.
Digitally signing the app file is a security requirement for AppSource submissions to ensure the integrity and authenticity of the app.
E. Use data classification on all tables and extension fields.
Microsoft requires that all data, especially personal data, be classified using the data classification feature to comply with GDPR and other data privacy regulations.
You ate creating a test codeumt for a company that uses Business Central. The company requites the following list of choices while posting a sales order:
* Ship
* Invoice
* Ship & Invoice
You must create a test codeunit that automatically selects one of these options. You need to create the test codeunit Which handler should you use?
StrMenuHandler is used to simulate the selection of an option from a string-based menu, such as the 'Ship,' 'Invoice,' or 'Ship & Invoice' options when posting a sales order. This handler allows you to programmatically select an option during automated testing.
Other handlers, such as SessionSettingsHandler or SendNotificationHandler, do not simulate the selection of menu choices, which is specifically required in this scenario.
For more details on StrMenuHandler and how it simulates user interaction with menu choices, refer to the Test Handlers in Business Central.
A company plans to optimize its permission sets.
The company has the following permission sets:
You need to provide the following implementation for a third permission set:
* Create a new Permission Set C that is a composite of Permission Set A and Permission Set B.
* Assign Permission Set C to a user.
You need to ensure that the user has only read access to the Job table.
Solution: Set the IncludedPermissionSets property to Permission Set A and the ExcludedPermissionSets property to Permission Set B.
Does the solution meet the goal?
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