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Title: Pass Microsoft MB-820 Guaranteed, MB-820 Valid Exam Forum
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Microsoft MB-820 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Develop by using AL: How to Customize the UI experience and Use AL for business central extension is discussed here. It also delves into explaining the essential development standards.
Topic 2
  • Describe Business Central: Describing the components and capabilities of Business Central, and describing the core solution and extensions approach for Business Central are focal points of this topic. It also explains the difference between Business Central Online and Business Central on-premises features.
Topic 3
  • Work with development tools: Implementing semi-automated test processes and managing and assessing telemetry are its sub-topics.
Topic 4
  • Integrate Business Central with other applications: Accessing Representational State Transfer (REST) services is discussed in this topic.  It also explains implementation of APIs.

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Microsoft Dynamics 365 Business Central Developer Sample Questions (Q19-Q24):NEW QUESTION # 19
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.
Answer: A,B
Explanation:
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.

NEW QUESTION # 20
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.
Answer: B,D
Explanation:
In Business Central, fields in tables are assigned specific data types that determine the kind of data they can store. For the Non-conformity table mentioned in the case study, the following data types should be used:
* Date for the Non-Conformity Date field: This is because the Non-conformity Date field is required to store only the date when the non-conformity was recorded. The Date data type is appropriate for storing dates without times.
* Code for the Non-Conformity Number field: The Non-conformity Number field is described to use alphanumeric values with a format that includes "NC" and the year, like "NC24-001". In Business Central, the Code data type is used for fields that store alphanumeric keys. It is a text field with a limited length, which makes it suitable for number series that contain letters and numbers.
Other options are not suitable:
* A. Integer for the Non-conformity Number field: This would not be appropriate because the Non- conformity Number includes alphanumeric characters and not just integers.
* B. DateTime for the Non-Conformity Date field: This is not correct because there is no requirement to store the time alongside the date.
* C. Char for the Non-Conformity Number field: Char data type is not typically used in Business Central for number series or identifiers. The Code data type is preferred for this purpose.
Topic 2, Contoso, Ltd. Contoso, Ltd. Is a sales company in the
manufacturing industry. It has subsidiaries in multiple countries
/regions, each with its own localization. The subsidiaries must be
data-independent from each other. Contoso. Ltd. uses an external
business partner to manage the subcontracting of some
manufacturing items. Contoso. Ltd. has different sectors with data
security between sectors required.
Contoso, Ltd. uses Business Central online as the main ERP for financial. sales, purchase, warehouse, and manufacturing processes. It has employees that use the Business Central web application and external applications. The company has a custom external mobile app under development The IT department and its partners installed custom extensions to satisfy the company's requirements where the functionality is not available natively.
Contoso. Ltd. interacts with external services provided by customers and partners. Different applications interact with SOAP and OData endpoints exposed from Business Central.
An external business partner of Contoso, Ltd exposed a REST API for receiving details about new subcontracting orders and for sending the planned release date of each subcontracting order received.
Contoso. Ltd. has not activated the monitoring of the tenant and has no internal telemetry for its apps.
Custom reporting must be created to meet the requirements of the different departments.
Contoso, Ltd. has the following tenant management considerations:
IT department
* The IT department requires the ability to monitor the tenant to prevent performance problems and detect possible anomalies.
* The IT department plans to use Azure Application Insights and Log Analytics to inspect the ingested telemetry signals.
* All tenant upgrades are automatically handled by Microsoft. The IT department does not check for update availability or for tenant-related notifications.
* The IT department has not configured the receipt of tenant-related notifications from the Business Central admin center.
External business partner
* The external business partner must add custom telemetry to an application created for Contoso. Ltd. to monitor a business process.
* Custom telemetry signals for the application must be visible only on the partner's telemetry.
SOAP
* Contoso, Ltd. plans to dismiss using the SOAP protocol for integrations.
* Contoso, Ltd. must be able to detect if external applications are using its Business Central SOAP endpoints.
Issue
The Business Central tenant is upgraded by Microsoft to a new major version during the night.
Users report that one of the Contoso. ltd. extensions disappeared from the tenant The IT department confirms that the extension is still published.
Contoso. Ltd. plans to create a custom mobile application that has the following requirements:
* The app must be used by employees to check item details from the ERP in real time and to report issues that occur during the manufacturing process.
* An AL extension must be created for handling archived issues.
* Business Central development guidelines must be followed when implementing modules.
* A module must be implemented for the reporting and tracking of issues information. You plan to call this module Issue Management The module must expose a method nan Postlude.
* Code modifications will be required over time.
* The Issue Management process must be split into two extensions:
o ISSUE BASE: main extension
o ISSUE EXT: second extension with dependency from ISSUE BASE
* In the version 1.0.0.0 of the ISSUE BASE extension, you plan to create an Issue table that contains a global Decimal variable named Issue Total.
* In the version 1.0.0.0 of the ISSUE BASE extension, you plan to define a table named Issue Category with a Description field defined as follows:
field (2; Description; Text[SG])
{
DataClassificstion * CustoaerContent;
>
* The Issue table defined in ISSUE BASE extension contains a Clone procedure defined as follows:
procedure Corte () begin end;
* In the ISSUE EXT extension, you create a table extension object of the Issue table.
* The table extension object of the Issue table must access the Issue Total: Decimal variable.
After weeks of usage, you discover that you must remove the Description field and the Clone procedure because they are no longer required.
In a new version of the ISSUE BASE extension, you create a new Issue Type table. You must move data row by row from a previously obsolete Issue Category table to the new Issue Type table. Because a large amount of data must be moved, you must write an Upgrade codeunit by using the DataTransfer object.
The IT department creates a custom API for exposing the custom Issue table. The API provides an action for copying an issue to a new table. The action is defined as follows:
(Service Enabled]
procedure Copy (vary action Context: WebServiceActionContext)
begin
end;
Contoso, Ltd. must create an API in Business Central to expose item details to the mobile application.
* The API must have the lowest possible impact on the production environment when used during working hours.
* The API must only support Get operations.
A user of the ISSUE BASE extension in Business Central reports a problem.
To debug the problem, snapshot debugging with the following configuration was activated:

You discover that the debugging is not triggering.
Contoso, Ltd. must connect Business Central to the external API provided by the business partner. This will be used for the partner to send the details of new subcontracting orders to fulfill the sales demand, and for receiving the planned release date of each order sent. The integration requirements are as follows:
* The business partner will provide a REST API secured with basic authentication. Credentials to access the API will be shared with Contoso, ltd.
* The API for sending subcontracting orders must be called by sending an authenticated POST request to the given endpoint.
* The API for retrieving the order no. and planned release date of each subcontracting order responds with the following JSON:

Each order no. must be retrieved.

NEW QUESTION # 21
You ate creating a view for a Business Central app.
The view requires a custom layout that displays only customer records with a balance greater than 500 in local currency.
You need to configure the view to specify that it has a custom layout.
Which property combination should you use?
Answer: C
Explanation:
SharedLayout = true allows for the layout to be shared across views, and it is often used when defining a custom layout that should follow specific filtering conditions.
The Filters property specifies the exact filter criteria for the view, in this case, filtering on Balance > 500 and the Currency Code = LCY (local currency).
A uses incorrect filter syntax and shareLayout = false, which doesn't allow the layout to be shared, so it's not ideal for this use case.
C and D both have issues with the filter syntax and do not use proper Currency Code filtering or share layout settings.
For more details, check Creating Views in Business Central.

NEW QUESTION # 22
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?
Answer: A
Explanation:
* 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
DRAG DROP 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

NEW QUESTION # 23
A company uses four objects in development in Business Central.
The company plans to make changes to the objects.
You need to identify the application layer for each object in Visual Studio Code.
Which objects ate available in each application layer? To answer, move the appropriate application layer to the correct objects You may use each application layer 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.

Answer:
Explanation:

Explanation:
Language table # System layer
Activities Cue table # Base layer
Extension Management codeunit # System layer
Business Unit Card page # Base layer
Application Layers in Business Central:
In Business Central, there are different layers such as Base and System, which represent different levels of the application architecture. Here's a breakdown of where each object is likely to belong based on typical Business Central architecture:
* Language Table:This table typically belongs to the System layer, as language and localization features are often part of the foundational aspects of the system.
* Activities Cue Table:This would likely be found in the Base layer because it involves business logic that supports user interface elements (like activity cues) specific to the Business Central application.
* Extension Management Codeunit:The Extension Management Codeunit likely belongs to the System layer, as it deals with handling extensions, which is closely related to the core system functionality for managing and deploying changes.
* Business Unit Card Page:This object would typically be part of the Base layer, as it is a business- specific object that handles the user interface for business unit data, part of the core Business Central application.

NEW QUESTION # 24
......
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