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Microsoft Dynamics 365 Business Central Developer (MB-820)

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Vendor

Microsoft

Certification

Business Applications

Content

111 Qs

Status

Verified

Updated

1 day ago

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Exam Overview

The MB-820 certification is a pivotal credential for professionals aiming to demonstrate their expertise in developing and extending Microsoft Dynamics 365 Business Central. This exam validates a candidate's ability to design, develop, test, and deploy customizations, integrations, and reports using the AL language and related tools. Achieving this certification signifies a deep understanding of Business Central's architecture, data model, and development best practices, making you an invaluable asset in any organization leveraging the platform. It opens doors to advanced roles in ERP development, solution architecture, and technical consulting, proving your capability to deliver robust and scalable Business Central solutions that drive business efficiency and innovation.

Questions

40-60

Passing Score

700/1000

Duration

120 Minutes

Difficulty

Expert

Level

Professional

Skills Measured

Develop for Business Central: Implement AL language fundamentals, create and modify standard object types (pages, tables, reports, codeunits, XMLports), manage data using AL, and understand the Business Central data model.
Extend Business Central: Utilize events and subscribers for customization, work with page extensions, table extensions, and implement custom reports and XMLports. Develop integrations using standard APIs, OData, and web services.
Integrate Business Central: Design and implement integrations with external systems using various methods including web services (SOAP/REST), APIs, and data exchange definitions. Manage data synchronization and ensure secure and efficient data flow.
Manage Data and Deployment: Plan and execute data migration strategies, create and utilize AL Test Tool for automated testing, package and deploy apps, and manage app lifecycle within Business Central environments.
Debug and Optimize Performance: Troubleshoot AL code, diagnose performance issues using built-in tools, optimize database operations, and ensure solutions are performant and adhere to best practices for scalability.

Career Path

Target Roles

Dynamics 365 Business Central Developer ERP Developer Technical Consultant (Dynamics 365 Business Central)

Common Questions

Is the material up to date?

Yes. We update our question bank weekly to match the latest Microsoft standards. You get free updates for 90 days.

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You get instant access to both the **PDF** (for reading) and our **Premium Test Engine** (for exam simulation).

Is there a guarantee?

Absolutely. If you fail the MB-820 exam using our materials, we offer a full money-back guarantee.

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Free Study Guide Samples

Previewing updated MB-820 bank (23 Questions).

QUESTION 1

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 creates a Business Central app and a table named MyTable to store records when sales orders are posted.

Users report the following issues:

โ€ข The users receive permission errors related to MyTable.

โ€ข Users are no longer able to post sales orders since installing the new app.

โ€ข The users cannot access the list page created in MyTable.

You need to resolve the user issues without creating new permission sets. You must use the principle of least privilege.

Solution: Assign a SUPER permission set.

Does the solution meet the goal?

A
Yes
B
No

Correct Option:

QUESTION 2

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. (Choose two.)

NOTE: Each correct selection is worth one point.

A
Codeunit
B
Report
C
Query
D
API page
E
Enum

Correct Option:

QUESTION 3

You need to evaluate the version values of the Quality Control extension to decide how the quality department must update it.

Which two values can you obtain in the evaluation? Each correct answer presents part of the solution. (Choose two.)

NOTE: Each correct selection is worth one point.

A
AppVersion = 1.0.0.1
B
AppVersion = 1.0.0.2
C
DataVersion = 0.0.0.0
D
DataVersion = 1.0.0.1
E
DataVersion = 1.0.0.2

Correct Option:

Official explanation included in the full bundle.

QUESTION 4

A company uses Business Central. The company has branches in different cities.

A worker reports that each time they generate a daily summary report, they get an error message that they do not have permissions.

You need to resolve the issue.

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

NOTE: Each correct selection is worth one point.


Technical Scenario Diagram
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QUESTION 5

You develop a table named Contoso Setup and a page.

You plan to use No. Series to automatically assign a unique number to data entries. You set up No. Series on the Vendor Nos. field of the Contoso Setup table.

You need to apply the No. Series Design Pattern to the trigger OnInsert().

Which four code segments should you use to develop the solution? To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.


Technical Scenario Diagram
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QUESTION 6

You need to develop the report Subcontract Documents Excel List that is required by the control department.

You have the following 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.

Technical Scenario Diagram
Answer Canvas

Official explanation included in the full bundle.

QUESTION 7

You need to create the code related to the Subcontract Documents table to meet the requirement for the quality department.

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.

 

 

Technical Scenario Diagram
Answer Canvas

Official explanation included in the full bundle.

QUESTION 8

You are creating a new Business Central report.

You plan to use triggers and functions to dynamically create a dataset and control the report behavior.

You must provide the following implementation:

โ€ข Run when the report is loaded.

โ€ข Run when the data item is iterated for the last time.

โ€ข Skip the rest of the report.

You need to select the triggers and functions for the report.

Which triggers and functions should you use? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.


Technical Scenario Diagram
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QUESTION 9

You need to configure the Subcontract Docs extension to translate the fields.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

 

 

Technical Scenario Diagram
Answer Canvas

Official explanation included in the full bundle.

QUESTION 10

You need to define the properties of the comments field of the Non-conformity 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.

 

 

Technical Scenario Diagram
Answer Canvas

Official explanation included in the full bundle.

QUESTION 11

You have a decimal variable named AmountLCY.

You need to round up the variable to four decimal places.

Which result value should you use?

A
B.
C
Option C

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QUESTION 12

You create an 'AddltemsToJson' procedure and publish it.

The procedure fails to run.

You need to fix the errors in 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.


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QUESTION 13

You are developing a test application to test the posting process of a sales order.

You must provide the following implementation:

Specify the value of post options (dialog: Ship. Invoice, Ship & Invoice) as Invoice.

Perform calculations and values checking.

You need to complete the development of the test codeunit.

Which methods should you use? To answer, move the appropriate methods to the correct implementation. You may use each method once, more than once, or not at all. You may need to move the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.


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QUESTION 14

A company uses Business Central. Users in DepartmentA are assigned a base application permission set.

The company observes that DepartmentA can display a critical page that should be unavailable to the department.

You need to resolve the system control issue.

What should you do?

A
Create a different role center page that excludes the critical page and assign it to the users.
B
Create a permission set object that excludes the critical table and assign it to the users.
C
Create an entitlement object that excludes the base application permission set.
D
Extend the base application permission set and configure the IncludedPermissionSets property.
E
Extend the base application permission set and configure the ExcludedPermissionSets property.

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QUESTION 15

A company has a test application.

A user observes the following error messages when running the test:

โ€ข โ€œUnhandled UI: Messageโ€

โ€ข โ€œUnhandled UI: Confirmโ€

You need to resolve the errors.

Which action should you take?

A
Create a separate test codeunit that has Message Handler and Confirm Handler methods.
B
Create the Message Handler and Confirm Handler methods in the test runner codeunit.
C
Create a separate test runner codeunit that has Message Handler and Confirm Handler methods.
D
Create the Message Handler and Confirm Handler methods in the test codeunit.

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QUESTION 16

You plan to create a table to hold client data.

You have the following data integrity requirements:

  • Lookups into other records must be established.
  • Validate if a record exists in a destination record.

You need to select the table field property to use for each requirement.

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

NOTE: Each correct selection is worth one point.


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QUESTION 17

You need to create the API page according to the requirements.

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.

 

 

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QUESTION 18

A company plans to integrate tests with its build pipelines.

The company has two Docker sandbox environments: SandboxA and SandboxB.

You observe the following:

  • SandboxA is configured without the Test Toolkit installed.
  • SandboxB must be configured from scratch. The Test Toolkit must be installed in SandboxB during configuration.

You need to configure the sandbox environments.

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


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QUESTION 19

You are creating an entitlement object in Business Central to enable transactability for AppSource apps.

You must map the entitlement object to a plan in Partner Center.

You need to select the value of the Type property to use in the entitlement object.

Which value should you use?

A
PerUserServicePlan
B
Implicit
C
Unlicensed
D
Role

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QUESTION 20

A company has a Business Central online environment.

You need to create an HTTP GET request that connects to an external REST service.

Which solution should you use?

A
HttpContent data type variable
B
Codeunit 1299 "Web Request Helper"
C
Codeunit 5459 "JSON Management"
D
Codeunit 1297 "Http Web Request Mgt."
E
HttpClient data type variable

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QUESTION 21

You need to provide the endpoint to the PMS provider for the RoomsAPI page.

How should you complete the API page endpoint? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

 

 

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QUESTION 22

A company plans to change a field on the Resource Card page in a Base Application.

You need to hide the field โ€œUnit Priceโ€ from the Resource Card page.

Which code snippet should you use?

A
B.
C
Option C

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QUESTION 23

You need to add a property to the Description and Comments fields with corresponding values for the control department manager.

Which property should you add?

A
InstructionalText
B
ToolTip
C
Description
D
Caption

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