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MB-820: Microsoft Dynamics 365 Business Central Developer Dumps

Free Microsoft MB-820 Exam Dumps August 2026

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Question No: 1

MultipleChoice

A company uses Business Central.

The company plans to use the AL object model in Business Central to extend the Base Application.

You need to extend the objects.

Which two objects can you extend? Each correct answer presents a complete solution.

NOTE: Each correct selection is worth one point.

Options

ACodeunit

BReport

CQuery

DAPI page

EEnum

Answer
B, EExplanation

A . Codeunit

Codeunits can be extended in AL to add or modify functionality in Business Central.

B . Report

Reports can also be extended to customize the format or data presented in the reports without modifying the base report.

Incorrect Options:

C . Query: Queries cannot be extended. You would need to create new queries or modify the existing ones directly.

D . API page: You cannot extend API pages, but you can create new API pages.

E . Enum: You cannot extend Enums because they are predefined sets of values.

Question No: 2

MultipleChoice

You are developing an app that will be published to Microsoft AppSource.

The app requires code analyzers to enforce some rules. You plan to add the analyzers to the settings.json file.

You need to activate the analyzers for the project.

Which three code analyzers should you activate to develop the app for AppSource? Each correct answer presents part of the solution

NOTE: Each correct selection is worth one point.

Options

ACodeCop

BUlCop

Ca custom rule set

DPerTenantExtensionCop

EAppSourceCop

Answer
B, D, EExplanation

When developing an app for Microsoft AppSource, it is crucial to adhere to specific guidelines and standards to ensure compatibility and compliance. The three code analyzers you should activate are:

CodeCop (A): This is the default analyzer for AL language extensions. It enforces the AL Coding Guidelines, ensuring that the code follows best practices for readability, maintainability, and performance. It checks for a wide range of issues, from syntax errors to best practice violations, making it essential for any AL development.

PerTenantExtensionCop (D): This analyzer is specifically designed for extensions that are intended to be installed for individual tenants. It includes rules that ensure the extension does not interfere with the per-tenant customizations and adheres to the guidelines for extensions that can be safely installed and uninstalled without affecting the underlying application.

AppSourceCop (E): This analyzer is tailored for extensions that are intended for publication on Microsoft AppSource. It enforces additional rules that are specific to AppSource submissions, such as checking for the use of reserved object ranges and ensuring that all prerequisite dependencies are correctly declared. This is crucial for ensuring that your app meets all the requirements for listing on AppSource.

By activating these three analyzers, developers can ensure their app adheres to the standards required for AppSource, as well as maintain high code quality and compatibility with Business Central.

Question No: 3

MultipleChoice

You have an XMLport that exports items from a database to an XML file.

You need to change the export format from XML to CSV.

What should you do?

Options

AChange the Direction property to Both

BChange the FormatEvaluate property to Legacy.

CChange the XmlVeisionNo property to 1.1.

DFill the FileName property with the Items.csv value.

EChange the Format property to VariableText.

Answer
EExplanation

XMLport Overview In Microsoft Dynamics 365 Business Central, XMLports are used for importing and exporting data in XML, CSV, or other text formats. By default, XMLports are designed to work with XML data, but they can also handle delimited text formats like CSV (Comma-Separated Values).

Requirement Clarification The requirement is to change the export format from XML to CSV. CSV is a text-based format, not an XML format. To accommodate this, you need to change how the XMLport handles data during export.

Properties of XMLport

The Format property in XMLports controls whether the output format is XML or a text-based format such as CSV.

The VariableText option of the Format property specifies that the data should be exported in a variable text format, like CSV.

The XMLports default to an XML format, but by setting the Format property to VariableText, you can change the export to CSV format or another text-delimited format.

Explanation of Correct Answer (E) To switch from XML to CSV export:

You need to change the Format property of the XMLport to VariableText.

The VariableText option allows for the export of data in a non-XML format, which is precisely what CSV represents (a comma-delimited text file).

Why Other Options Are Incorrect

Option A (Change the Direction property to Both): The Direction property controls whether the XMLport is used for Import, Export, or Both (import and export), but it does not affect the file format (XML vs. CSV). Hence, this is irrelevant to the file format change.

Option B (Change the FormatEvaluate property to Legacy): The FormatEvaluate property is not related to changing the export format. It deals with the evaluation of the data format during the processing but doesn't change the format type (XML or CSV).

Option C (Change the XmlVeisionNo property to 1.1): The XmlVersionNo property defines the XML version used for the export (such as 1.0 or 1.1). This only applies to XML exports and does not change the format to CSV.

Option D (Fill the FileName property with Items.csv): While this option would specify the name of the file being exported (i.e., 'Items.csv'), it doesn't control the format of the export itself. The actual format change is controlled by the Format property.

Developer Reference from Microsoft Documentation According to the official Microsoft documentation for XMLports in Business Central, the Format property is critical for determining how data is structured for export. To change the file format from XML to CSV, developers need to set the Format property to VariableText. This allows for export in a text-delimited format, which is ideal for CSV.

XMLport Properties - Format Property

How to: Export Data in Text Format Using XMLports

Question No: 4

MultipleChoice

You have a custom app.

A warning for the rule code named AAOXYZ appears in multiple app objects.

You need to change the severity of the rule from Warning to Info for only the current app.

Which three actions should you perform? Each correct answer presents part of the solution. Choose three.

NOTE: Each correct selection is worth one point.

Options

Aa custom rule set

BOpen the Visual Studio Code user settings.json file.

COpen the Visual Studio Code project settings.json file.

DAdd the following ruleset object to the ruleset.json file:

EChange the 'al.enableCodeAnalysis' property value to 'false'.

FAdd the 'al.ruleSetPath' property with a path to the ruleset.json file.

Answer
B, F

Question No: 5

MultipleChoice

A company has an on-premises Business Central instance named TEST The instance uses Windows authorization and a developer services port of 7149 Visual Studio Code is installed on the same server.

You create a new AL project but cannot download the symbols.

The launch json file contains the following code:

You need to download the symbols.

Which two actions should you perform? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point.

Options

AChange the server Instance parameter to TEST

BAdd the port: 7149 parameter.

CChange the name parameter to TEST.

DChange the authentication parameter to UserPassword.

ECheck which server the instance is installed on and replace http//localhost with the correct IP address.

Answer
A, BExplanation

You are working on an on-premises Business Central instance and unable to download symbols for a new AL project. The current configuration in launch.json does not allow you to download symbols, and you need to make corrections.

Key Points in the Scenario:

Instance name is TEST.

Developer services port is 7149.

Windows authentication is being used.

Correct Answers:

A . Change the server Instance parameter to TEST.

The serverInstance parameter must match the name of the Business Central instance, which is TEST in this scenario. You need to modify this to reflect the correct instance name.

B . Add the port: 7149 parameter.

Since the developer services are using port 7149, you need to specify this in the launch.json file by adding the port parameter with the value 7149.

Incorrect Options:

C . Change the name parameter to TEST: The name parameter is just a label and does not affect downloading symbols, so changing this won't help.

D . Change the authentication parameter to UserPassword: The authentication method is already set to Windows, which is valid for this scenario. Changing it to UserPassword is unnecessary unless specified by the system.

E . Check which server the instance is installed on and replace http://localhost with the correct IP address: Since the server is on the same machine as Visual Studio Code (as specified), localhost is correct.

Question No: 6

MultipleChoice

A company has a task that is performed infrequently. Users often need to look up the procedure to complete the task.

The company requires a wizard that leads users through a sequence of steps to complete the task.

You need to create the page to enable the wizard creation.

Which page type should you use?

Options

ANavigatePage

BCard

CRoleCenter

DList

Answer
AExplanation

For a task that is performed infrequently and requires users to follow a sequence of steps, a wizard-like interface is ideal. In Microsoft Dynamics 365 Business Central, the NavigatePage page type (A) is best suited for this purpose. NavigatePage is designed to guide users through a series of steps or pages, allowing them to complete a task by making choices or entering data in a structured manner. This page type is often used for setup wizards, data migration tasks, or any other process that benefits from a step-by-step approach. Unlike the other page types like Card (B), RoleCenter (C), or List (D), NavigatePage specifically supports the navigation and decision-making flow required for wizard creation, making it the optimal choice for this requirement.

https://learn.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/devenv-pages-overview

Question No: 7

MultipleChoice

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 B and the ExcludedPermissionSets property to Permission Set A.

Does the solution meet the goal?

Options

AYes

BNo

Answer
B

Question No: 8

Hotspot

You need to create the configuration table and page for the non-conformity functionality.

Which table configurations should you use? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point

Answer

Question No: 9

Hotspot

You need to create the configuration table and page for the non-conformity functionality.

Which table configurations should you use? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point

Answer

Question No: 10

Hotspot

You need to create the configuration table and page for the non-conformity functionality.

Which table configurations should you use? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point

Answer

Question No: 11

Hotspot

You need to download a stored picture from the Room Incident page.

How should you complete the code segment? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

Answer

Question No: 12

Hotspot

You create a query that contains a procedure to display the top customers.

The procedure breaks at runtime.

You need to fix the code.

For each of the following statements, select Yes if the statement is true. Otherwise, select No.

NOTE: Each correct selection is worth one point.

In summary, for the procedure to run correctly, the query must be opened after setting the filter and before attempting to read from it. The SetFilter method is correct for the intended operation, and there's no requirement to use SetRange or to enclose the Message call in a BEGIN .. END block.

Answer

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