Microsoft MB-820 Exam Syllabus Topics:
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Reference: https://learn.microsoft.com/en-gb/credentials/certifications/resources/study-guides/mb-820
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Microsoft Dynamics 365 Business Central Developer Sample Questions:
A company plans to customize its per tenant extension reports. The company has the following requirements for the customization:
* Child data items must not be displayed on the request page for some master detail reports.
* Selecting key filter fields takes users too much time. The customization must decrease the amount of time to select the fields.
You need to optimize the report request page.
Which actions should you configure? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Correct Answer:
Explanation:
1. Child data items... must not be displayed:
* Selection: Set the DataItemTableView sorting property.
* Reasoning: In Business Central reports, a FastTab (filter tab) is automatically generated for every data item on the request page. To hide a specific data item ' s tab, you must ensure two things: no RequestFilterFields are defined for it, and you must set the DataItemTableView property (specifically the sorting key). Simply linking the data item (via DataItemLinkReference) does not automatically hide the tab; it just defines the data relationship.
2. Decrease the amount of time to select filter fields:
* Selection: Specify the RequestFilterFields property.
* Reasoning: The RequestFilterFields property allows you to pre-define which fields appear on the request page immediately when the report opens. This eliminates the need for users to manually click " Add Filter " and search for the field, thus decreasing selection time.
You create a ' Contoso Post " procedure to send an http POST request in JSON format. You publish the procedure to your environment.
You write the following procedure code:
The procedure does not work as expected.
You need to find and fix all errors in HTTP class usage.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Correct Answer:
Explanation:
Statements:
* Replace line 16 with ResponseText := ResponseMessage
* Answer : No The correct way to handle the response is to use ReadAs or similar methods to read the content from the response, not just assign the ResponseMessage directly to ResponseText.
Hence, this statement is incorrect.
* In line 13, change the ' text/plain ' value to ' application/json '
* Answer : Yes Since the procedure is expected to send a POST request with JSON content, changing the content type to ' application/json ' is correct. This ensures that the server understands the content is in JSON format.
* Replace line 14 with Client.DefaultRequestHeaders.Add( ' Authorization ' , ' Bearer ' + Token);
* Answer : No In AL, the authorization headers are managed through HttpHeaders, and the Client.
DefaultRequestHeaders method is not available in AL. Therefore, this statement is incorrect.
* In line 10, replace WriteFrom with ReadAs
* Answer : No WriteFrom is the correct method for sending the request content, as it writes data from the RequestText variable to the HttpContent. ReadAs is used for reading the response, not for writing the request content.
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.
Correct Answer:
Explanation:
Handler
Test
You need to parse the API JSON response and retrieve each order no. in the response body.
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.
Correct Answer:
Explanation:
Code Segment Analysis:
* The AL code is trying to read JSON data from a response and process it to extract subcontracting order numbers. It uses JsonToken , JsonObject , and JsonArray to work with the JSON data.
* JToken.ReadFrom(Data) : This line reads the incoming JSON data and converts it into a token. It processes the full JSON body so you can start working with it.
* JToken.SelectToken( " results " ) : This line selects the part of the JSON containing the results array.
The key " results " is where the JSON response data is expected to be found.
* JsonArray : Once the results are extracted, they are stored as an array, and each element in the array (which is expected to contain subcontracting order numbers) is processed.
* SubcontractingOrderNo : The extracted order_no from the JSON is stored in this variable.
Breakdown of Steps:
* JToken.ReadFrom(Data) : This step reads the entire JSON response.
* JToken.SelectToken( " results " ) : This step selects the results array from the JSON response.
* JArray.AsArray() : This step converts the selected results token into a JSON array that can be iterated over.
* GetValueAsText(JToken, ' order_no ' ) : This step retrieves the order_no from each element in the array.
Correct Code Completion:
* JToken.ReadFrom(Data) : This is the correct method to read the incoming JSON response, as it will convert the string into a JsonToken that can be further processed.
* JToken.SelectToken( " results " ) : This is the correct method to extract the results array from the token. This method looks for the key " results " in the JSON and retrieves the relevant array.
Final Code Segment:
al
Copy code
procedure ReadJsonData(Data: text)
var
JToken: JsonToken;
JObject: JsonObject;
JArray: JsonArray;
SubcontractingOrderNo: Code[20];
begin
if Data = ' ' then
exit;
JToken := JToken.ReadFrom(Data); // Step 1: Read the JSON response data.
JToken := JToken.SelectToken( ' results ' ); // Step 2: Select the " results " array.
JArray := JToken.AsArray(); // Convert the token into a JSON array.
foreach JToken in JArray do begin
SubcontractingOrderNo := GetValueAsText(JToken, ' order_no ' ); // Retrieve the order number.
end;
end;
* JToken.ReadFrom(Data) : This reads the raw JSON data string and converts it into a JSON token that can be processed.
* JToken.SelectToken( " results " ) : This extracts the results array from the JSON data.
* JArray.AsArray() : Converts the token into an array so we can iterate over it.
* GetValueAsText(JToken, ' order_no ' ) : Extracts the order_no value from each item in the array.
Topic 2, Case Study Alpine Ski House
Alpine Ski House is a company that owns and operates hotels, restaurants, and stores. Currently, the company uses the following software and interlace:
* Property management software (PMS) to manage hotel rooms
* On-premises accounting software to generate sales invoices and create purchase orders
* An API that allows restaurants and stores to obtain necessary information Restaurants and stores use standalone software for point of sale (POS) devices. Each day, the POS terminals generate a text file of sales data and save the files in a serval folder. An account assistant must manually import the files to the current software tables to be processed by the system.
The general manager receives several reports monthly from department managers. The reports take too much time to prepare.
The company is moving from a different system to Business Central online to manage the whole company.
The company plans to increase efficiency in every department by using APIs to obtain or share information between the different systems.
Each department involved in purchasing must be able to make purchase requests automatically and easily.
The departments do not need access to the full ERP management system.
Alpine Ski House requires the development of several extensions for the planned improvements. Business Central design patterns must be used to develop all extensions.
Alpine Ski House must develop the following pages:
* Pages that provide multiple configurations in a multistep dialog, like a wizard, to provide required information when the extensions are first installed
* Department-specific Role Center pages to show relevant information and pages with additional information The IT department plans to use Power 61 to analyze departmental information. The database must be configured to provide optimal performance.
The housekeeping department requires the following to increase efficiency and help avoid data entry errors:
* A Housekeeping Role Center to minimize navigation to relevant areas In Business Central online and to show relevant information in it
* Pages to embed into a new Room page to show additional information about the Room entity
* A table named Room Incident for the housekeeping team to enter room issue information
* A Housekeeping canvas app that connects to an extension
The department requires the development of an extension with a new API page named RoomsAPI.
* The housekeeping team will use RoomsAPI to publish room details, update when work is complete, or provide repair notifications from the canvas app.
* This custom API page must expose a custom table named Rooms and have an ID 50000. The table must be able to update from the PMS. The PMS team must know the end to connect to the custom API.
* A developer provides the following details for the API page:
APIPublisher = ' alpine ' ;
APIGroup - ' integration ' ;
APIVersion - ' v2.6 ' ;
fntityName # ' room ' ;
EntitySetName = ' rooms ' ;
* The extension must be published in Business Central online and include a list page named Room List that includes all hotel rooms.
* Installation or updates to this extension must meet the following requirements:
o Some web services must be published automatically.
o The version of the specified application ' s metadata must be obtained in AL language.
o The code required to perform tasks cannot be accessible from other parts of the application.
The Room Incident table information must include the following fields:
* Incident entry: An incremental number
* Room No.: A room from the Room table
* Incident Date: The work date
o The table definition in the Room Incident table must autofill the Incident Date when the housekeeping team inserts a new record, o The value for Incident Date must be the work date configured in the Business Central online client.
* Status: Includes the following options lo identify the status of the incident:
o Open: When the Room Incident is created
o In Progress: When someone starts repair work
o Closed: When the incident is solved
* Incident Closing Date: Auto-updating field (when the status passes to Closed, the field will update with the work date)
* Incident Description: Text
* Image. Media data type
o The stored picture must be downloadable from a menu action.
o A Room Incident page must be developed to contain the download action.
To increase efficiency, the new system must manage the generated data from the restaurants and stores directly by using the API on the POS terminals.
* The company requires a code unit called from a job queue to read the information from the POS terminal APIs.
* The POS terminal information must be stored in a table named POS Information, have an ID 50100. and be editable on a page.
* The account manager requires an option on the menu of the page to run the process manually.
To analyze the information received from the POS terminals, the company requires:
* A custom API named ticketAPI to export the information to Power BI
* Use of the Read Scale-Out feature to improve database performance
The purchasing department requites a new entity in Business Central online to log non-conformities of goods received from vendors. The entity must be set up as follows:
* The non-conformity entity must have two tables:
o a header with common information
o one or more lines with the detailed received items that are non-conforming
* The entity requires a page named Non-conformity and a subpage named Non-Conformity Lines to store the information.
When a purchase order with incorrect quantity 01 quality issues is received, the entity must create a non- conformity document in the system. The following information must be nick the document:
* Non-conformity Number: must use the No. Series table from Business Central online to manage this field and use these features:
o Alphanumeric values
o Number format that includes " NO and the year as part of the number: for example, NC24-001
* Non-conformity Date: stores only the creation date
* Vendor No.: stores the number of the vendor that sent the items; only vendors from the company must be included
* Owner: code of an employee defined in the company
* Receipt No.: must meet the following conditions:
o Be an existing receipt No.
o Be received from the vendor indicated in the Vendor No. field
* Comments: can include comments with rich text and pictures to illustrate quality problems
* Status: includes nonconformity statuses, such as:
o Open
o Notified
o Closed
* Lines must contain the following details:
o Item No.: item received (for existing inventory items only)
o Description: item description
0 Quantity: non-conforming quantity
0 Non-conformity Type:
# Quality
# Quantity
# Delivery date
The serial numbers of the non-conformities and the period in which they can be created must be in a configuration table and its corresponding page to allow them to be modified for the users.
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
Correct Answer:
Explanation:
Design pattern for the setup table:
* The correct selection here is Adapter . The Adapter design pattern is commonly used when you need to handle integration points or create a setup table that acts as an intermediary for data manipulation, which fits the requirement for the configuration of the non-conformity functionality.
Data type of the primary key field:
* The correct data type is Code . In Business Central, when creating a table with a primary key field, the Code data type is typically used for fields such as document numbers, codes, and identifiers. For a setup table, a Code field is appropriate for keys like " No. " series or setup identifiers.
Property required to prevent users from adding records:
* The correct property is InitValue . This property is used to set initial values for fields and can be configured in such a way that users are prevented from adding records directly, typically enforcing control over record creation and editing in configuration scenarios.
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