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MB-820 Exam Dumps and Practice Questions

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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%

Actual Microsoft MB-820 Exam Questions

Question 1

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.

Does the solution meet the goal?

Correct answer: B

Question 2

You create a page with the PageType property set to RoleCenter.

You navigate through the different sections of the page.

You need to add functionalities to the page.

What should you do?

Correct answer: A

https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-designing-role-centers#designing-role-centers


Question 3

You need to determine why the extension does not appear in the tenant.

What are two possible reasons for the disappearance? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

Correct answer: B, D

In the context of Microsoft Dynamics 365 Business Central, an extension may not appear in the tenant for several reasons, particularly after an upgrade to a new major version.

Option A suggests that the extension was published as a DEV extension, which typically would not cause it to disappear after an upgrade because DEV extensions are intended for development and testing within sandbox environments.

Option B indicates that the extension was not compatible with the new version within 60 days of the first notification. This is a likely reason because Microsoft enforces compatibility rules, and extensions that are not made compatible within the specified timeframe might be removed or disabled.

Option C refers to the extension being published as a PTE (Per-Tenant Extension) and mentions the Platform parameter not being updated. This could cause issues, but not specifically the disappearance of the extension after an upgrade.

Option D expands on Option C by adding that both the Platform and Runtime parameters were not updated in the application file. This is a critical aspect because if these parameters are not correctly set to indicate compatibility with the new version of Business Central, the extension could be disabled or removed.

Option E is similar to Option B but mentions a 90-day period. This option does not align with standard Business Central practices for version compatibility requirements.

Therefore, the two possible reasons for the disappearance of the extension in the tenant after an upgrade are that the extension was not compatible with the new version within the required timeframe (Option B) and that the extension was published as a PTE without the Platform and Runtime parameters being updated (Option D).


Question 4

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

After you answer a question in this section, you will NOT be able to return to it. As a result these questions will not appear in the review screen.

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 Excluded Permission Sets property to Permission Set B.

Does the solution meet the goal?

Correct answer: B

Question 5

A company uses Business Central.

The company has sales orders that have a different location in the header than in the customer's card. You plan to add a check on sales order posting.

The check must meet the following requirements.

* Sales Order must have the same Location Code as the Location Code set up on the customer's card.

* Must not be run in preview mode.

* Must be run even if the user is only shipping items and not invoicing.

You create an event subscription for codeunit 80 "Sales-Post" You need to identify which event to subscribe to Which event should you identify?

A.

B.

C.

D.

Correct answer: A

This event occurs before posting a sales document.

PreviewMode is available in the parameters, which allows checking whether the process is being run in preview mode.

This event is typically used for sales order posting and can be used for both shipping and invoicing.

This event matches the requirements because:

You can check if PreviewMode is false.

It can run for both shipping and invoicing.


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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.