PL-400 Microsoft Power Platform Developer Free Practice Exam Questions (2026 Updated)

You are troubleshooting Power Apps solutions.

You need to determine the cause for the identified issues.

What is the root cause for each issue? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

You are creating a model-driven app to track the time that employees spend on individual projects.

You need to configure the app according to the company’s requirements.

Which components should you configure? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

You need to resolve the address validation API error.

Which method should you use to connect?

You work for a consulting company that implements Microsoft Power Platform solutions. The company develops the following reusable components:

• A control that customers can install themselves from Microsoft AppSource.

• A JavaScript web resource that contains common functions developers will add to in the development environments of

new projects.

You need to package the components in separate solutions.

Which solution type should you use? To answer, move the appropriate solution types to the correct components. You may use each solution type 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.

The communication department for a company plans to add a publicly accessible survey page to the company’s public website.

You must add the new survey page to the company’s public website and capture data from the page to a Common Data Service environment.

Explicit user credentials must not be required to write survey data to Common Data Service.

You need to implement authentication.

Which authentication mechanism should you implement?

A company is developing multiple plug-ins.

One of the plug-ins keeps failing.

You need to debug the plug-in.

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

NOTE: Each correct selection is worth one point.

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 Common Data Service (CDS) environment has two custom entities named Building code and Work item. Building code has a code date custom field and Work item has an elapsed time custom field. Construction workers use a consolidated custom form with data from both entities to fill.in their daily work items.

A JavaScript library is used with these custom entities and fields to apply complex logic.

You need to ensure that the JavaScript library continues to function as originally designed if other developers expand the environment.

Solution:

In the Building code form, add the JavaScript library in the events tab and the Code date field to the non-event dependencies.

In the Work item form, add the JavaScript library in the Events tab and the Elapsed time field to the non-event dependencies.

Does the solution meet the goal?

You are creating a model-driven app.

You are using the Opportunities table to estimate the opportunity. The requirements for the app include:

• An email must be sent to the sales team if the opportunity is over $50,000.

• Users must be able to enter sponsors when creating a record if the opportunity is over one million dollars.

You must minimize the lines of code required.

You need to implement the app.

Which tools should you use?

To answer, drag the appropriate tools to the correct requirements. Each tool may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.

You need to configure the system to support automation for referrals.

What are two possible ways to achieve the goal? Each correct selection presents a complete solution.

NOTE: Each correct selection is worth one point.

You need to configure the address verification API.

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

NOTE: Each correct selection is worth one point.

You need to configure the app to meet the address verification requirements.

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

NOTE: Each correct selection is worth one point.

You are developing an app that uses Common Data Service.

You must integrate Common Data Service with a new web application. You must allow the new web application to display data from Common Data Service.

You build a single-page web application using the Web API.

You need to authenticate your app using OAuth.

What should you use?

You need to handle errors in UpdateRecord.js.

Which code segment should you add at line UR06?

You need to add the script for the registration form event handling.

Which code segment should you use?

You need to design functionality to process background check results.

What should you implement? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

You need to configure a connector for the driving record verification API.

How should you configure the system? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

You need to determine how to implement rules for players who register for a soccer tournament.

Which business rule actions should you use? To answer, drag the appropriate business rule actions to the correct fields. Each business rule action may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.

You need to correct the portal query issues.

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

NOTE: Each correct selection is worth one point.

You need to select connectors for the app.

Which types of connectors should you use? To answer, drag the appropriate connectors to the correct requirements. Each connector may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.