Microsoft MB-500: Microsoft Dynamics 365: Finance and Operations Apps Developer

Last checked October 22, 2026 against the official Microsoft exam page.

1. Question 1Develop extensions by using X++

   A developer needs to add logic that runs before a standard method in a Finance and Operations class, without modifying the base code. Which extension technique is supported?

   1. AEditing the base class source file directly in the Microsoft standard code
   2. BRunning a raw T-SQL update script on the AXDB database
   3. CCopying the base class into a new name and changing calls
   4. DChain of command (CoC) extension with a wrapper method marked next
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   Correct answer: D

   Chain of command lets an extension wrap a public or protected method and call next to continue the chain. Editing base code, copying classes, and direct database scripts break upgrade safety or bypass supported extensibility.

2. Question 2Data management and integration

   An external system must import a large set of sales orders into Finance and Operations on a schedule. Which capability is designed for this?

   1. AData management framework with data entities and scheduled import jobs
   2. BManual copy and paste of sales order lines into forms by a user, one record at a time
   3. CA printed report from the external system's sales order screen
   4. DEmailing weekly spreadsheets of sales orders to users, who retype the values into forms
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   Correct answer: A

   The data management framework supports scheduled imports through data entities. Manual copy-paste, emailed spreadsheets, and printed reports are slow and error-prone.

3. Question 3Security and data access

   A custom form should only be visible to users in a specific role. Which Finance and Operations security element controls access to the form?

   1. AA report layout and the print settings in the report's design file
   2. BA table index defined on the underlying SQL Server database tables
   3. CA label file containing the caption text and help strings shown on the form
   4. DA menu item and the privileges and duties assigned to roles
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   Correct answer: D

   Menu items, privileges, and duties control access to forms in role-based security. Indexes, layouts, and labels do not control access.

4. Question 4Debugging and testing

   A developer needs to find why a X++ method returns an unexpected value. Which tool lets them pause execution and inspect variables at a specific line?

   1. AThe browser's zoom setting for the web client page
   2. BThe label editor for text resources
   3. CA printed copy of the source code listing file
   4. DThe Visual Studio debugger with a breakpoint
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   Correct answer: D

   Breakpoints in the Visual Studio debugger pause execution and expose variable values. Printed code, zoom settings, and the label editor do not inspect runtime state.

5. Question 5Deployment and lifecycle

   A team wants to promote a tested solution from a sandbox to a production environment with a repeatable process. What is the recommended approach?

   1. AUse a deployable package built from source control and deploy it through the environment lifecycle
   2. BCopy the database manually to production by restoring a backup and rerunning scripts by hand in the live tenant
   3. CEdit the production code directly through the X++ development environment connected to the live database
   4. DDeploy directly from each developer's local machine using a copied package file
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   Correct answer: A

   A deployable package built from source control, deployed through the lifecycle, is repeatable and traceable. Manual copies, direct production edits, and laptop deployments are error-prone.