dc dotCreds
Microsoft Power Platform Developer

PL-400 Practice Test

Start today’s free 10-question PL-400 set with source-backed explanations, local progress, and a fresh rotation every morning.

10 Free Daily Questions Source-backed Explanations 200 Verified Questions

Questions updated at Aug 12, 2026, 3:38 PM CDT

Go Pro - One Time Unlock

Unlock the full PL-400 bank

200 verified questions Exam Mode Practice Mode Detailed explanations Weak-area review No subscription - one-time unlock

Get the complete source-backed bank with Interview Questions, the full Study Guide, full Course Notes, detailed explanations, weak-area review, and exam-style practice.

Interview Questions Full Study Guide Full Course Notes Exam Mode Practice Mode Guided Course Detailed explanations Weak-area review No subscription
$4.99 One-time payment
See bundle and PDF options

We will confirm your site email in one quick checkout step.

Why DotCreds?

Practice with explanations that teach.

Source links for every answer Every wrong answer explained Guided Course included Practice and Exam Mode Weak-area tracking Same verified bank across web practice

What you get with free practice

10 Free Questions Daily Fresh set every day from the live bank
Detailed Explanations Learn with clear source-backed answers
Track Your Progress Daily history and performance insights
Upgrade Anytime Unlock the full bank when you are ready
Today's 10 PL-400 questions

Use this PL-400 practice test to review Microsoft Power Platform Developer. Questions rotate daily and each answer links back to the source used to write it.

Today’s Set
10 questions
Rotates at 10:00 AM local time
Progress
0/10
Answered on this page
Accuracy
0%
Loading countdown…

200 verified questions are in the live bank. Free daily questions are selected from a rotating sample set. Unlock Pro to access the full question bank.

Preparing today’s free questions... Ordering the final locked-bank set before showing the practice cards.
Question 1 of 10
Objective Configure environments, troubleshoot security, and apply least privilege Build Power Platform solutions

A user still edits Accounts after an individual Write role is removed. The user also belongs to an owner team with a role granting Account Write at Business Unit depth. Why does access remain?

Concept tested:
Question 2 of 10
Objective Implement model-driven client scripting, commands, Web API calls, and navigation Extend the user experience

A command-bar button should asynchronously retrieve related Dataverse rows and open a custom page. Users without Read access need a clear error rather than a frozen form. Which implementation is appropriate?

Concept tested:
Question 3 of 10
Objective Design reusable components, connectors, code components, and integrations Create a technical design

Apps and flows must call a partner REST API, while server-side Dataverse logic needs a reusable CalculateRisk operation with typed parameters that plug-ins and API clients can invoke. Which combination is correct?

Concept tested:
Question 4 of 10
Objective Use Dataverse Web API and Organization service efficiently Extend the platform

A .NET integration must create an Invoice and its required InvoiceLine records atomically: if any request fails, none of the changes should remain. Which Dataverse request pattern should it use?

Concept tested:
Question 5 of 10
Objective Implement advanced canvas logic and reusable components Implement Power Apps improvements

A canvas gallery queries 500,000 Orders, then calls a flow to reserve the selected item. Some users see incomplete search results and assume every reservation succeeds. Which correction addresses both defects?

Concept tested:
Question 6 of 10
Objective Publish and consume Dataverse events through webhooks and Azure messaging Develop integrations

An Azure Service Bus consumer receives Dataverse events. A transient failure causes a message to be delivered again, and applying it twice would create a duplicate invoice. What must the consumer do?

Concept tested:
Question 7 of 10
Objective Implement solutions, dependencies, environment variables, layers, pipelines, and CI/CD Build Power Platform solutions

A base solution must deploy before an extension that depends on its table. Production also has a top layer hiding older behavior, and every release must pass automated checking and artifact promotion. Which ALM plan is complete?

Concept tested:
Question 8 of 10
Objective Design technical architecture, security, and business logic placement Create a technical design

A proposed canvas app combines a social-media connector with a regulated customer-record connector. The environment's DLP policy classifies them into groups that cannot exchange data. The same requirement could be met with standard Dataverse features. What should the design recommend?

Concept tested:
Question 9 of 10
Objective Create Dataverse plug-ins, custom APIs, and business events Extend the platform

Before an Account update is written, a plug-in must normalize the Target telephone value as part of the same database transaction. The request should not be rejected. Which stage fits?

Concept tested:
Question 10 of 10
Objective Optimize and troubleshoot canvas and model-driven apps Implement Power Apps improvements

A model-driven app sends an unexpected update only for some users. The developer needs runtime operations, network calls, and errors from a live session. What should be started?

Concept tested:
Locked preview

You are viewing today’s free 10. Unlock 190 more questions.

Unlock full bank
Daily sample Rotating practice Free daily questions are selected from a rotating sample set.
Pro bank Full access Unlock Pro to access the full question bank, Exam Mode, Practice Mode, and random tests.
PL-400 Pro $4.99 one-time

Best if you only need this one certification.

50 Exam Practice Test $1.99 one-time

A 50-question PL-400 PDF for short review sessions. Questions come first, then the answer review and explanations later in the file.

Power Platform Bundle $9.99 one-time

Unlock all 3 active Power Platform Bundle practice banks in one permanent purchase.

What’s includedPL-900, PL-300, PL-400
All Access $6.99/month

Unlock every active practice exam, bundle and path experience, Pro course and study content, and included downloads.

What’s includedEvery current and future active practice exam, All active bundle and career-path practice content, Pro course lessons, study content, and supported paid downloads

Choose an unlock option to continue. We will confirm your site email in one quick checkout step.

Secure checkout powered by Stripe. Source-backed questions. Not brain dumps. Checkout stays on this page and unlocks the same Pro builder on this practice page.

Purchase options

Unlock the full PL-400 bank.

Get the full bank, Exam Mode, Practice Mode, question sets, random tests, readiness tracking, saved box scores, and review tools for this exam.

The PDF versions keep questions first and move the answer review, explanations, and distractor notes to the back of the file.

200 verified exam-style questions Every choice explained Exam Mode and Practice Mode Question sets and random tests Readiness score and trends Previous test box scores

You've answered 0/10 questions in today's set.

Locked: 190 more questions in the full bank.

Locked: exam simulation mode, practice mode, readiness tracking, and saved review history.

Checkout stays on this page, so you can keep practicing, unlock the full bank, and start Exam Mode or Practice Mode when you are ready.

Cheat Sheets

7-day score keeper

Answer questions today and this will become a rolling 7-day scorecard.

Local history
Optional progress sync

Keep today’s practice moving

Guest progress saves automatically on this device. Add an email later when you want a magic link that keeps your daily PL-400 practice in sync across browsers.

Guest progress saves on this device automatically

Guest progress is available without an account.

Source-backed answer review

The free daily PL-400 set includes crawlable question text, answer choices, correct answer labels, objective mapping, and source links. Only the first SEO card includes answer explanations and any extra learning features. Pro-only bank questions stay locked; this section mirrors only the 10 free daily questions already shown on this page.

Question 1 A user still edits Accounts after an individual Write role is removed. The user also belongs to an owner team with a role granting Account Write at Business Unit depth. Why does access remain?

Answer choices

  1. A. App sharing automatically grants unrestricted table Write, for this scenario.
  2. B. Licensing always overrides security role removal, as the selected response to the described condition.
  3. C. Security roles are cumulative, including grants received through teams, as proposed.
  4. D. Removing a role takes effect only after a solution export, for the required build power platform solutions outcome.

Correct answer

Security roles are cumulative, including grants received through teams, as proposed.

Effective Dataverse access is the union of applicable privileges. The team role continues to grant Account Write within its access depth even after the user's other role is removed.

Wrong-answer review

  • A. App sharing automatically grants unrestricted table Write, for this scenario.: App sharing permits opening the app but does not grant unrestricted record privileges.
  • B. Licensing always overrides security role removal, as the selected response to the described condition.: A license enables product use but does not override Dataverse security evaluation.
  • D. Removing a role takes effect only after a solution export, for the required build power platform solutions outcome.: Solution export has no role in recalculating a user's effective security privileges.

Extra learning features

Why this matters

If a user continues to edit Accounts despite a role removal, the business suffers from inconsistent data and potentially incorrect financial reporting, highlighting the critical need for thorough role management and understanding of cumulative privilege assignments. This could lead to significant operational inefficiencies and inaccurate business insights.

Objective/domain: Build Power Platform solutions

Source: Security roles and privileges for Dataverse

Question 2 A command-bar button should asynchronously retrieve related Dataverse rows and open a custom page. Users without Read access need a clear error rather than a frozen form. Which implementation is appropriate?

Answer choices

  1. A. Use synchronous XMLHttpRequest and manipulate the command bar DOM, for the described technical objective and its associated operational control requirements, as the selected response to the described condition.
  2. B. Use a calculated column to navigate the browser, for the described technical objective and its associated operational control requirements, when applied.
  3. C. Use the supported client Web API with asynchronous success and error handling, then a navigation API to open the custom page, within organization-wide risk-and-accountability boundaries.
  4. D. Use a plug-in trace log to open the page on the user's device, for the described technical objective and its associated operational control requirements, within the documented scope, ownership, and validation boundaries.

Correct answer

Use the supported client Web API with asynchronous success and error handling, then a navigation API to open the custom page, within organization-wide risk-and-accountability boundaries.

Objective/domain: Extend the user experience

Source: Client API object model for model-driven apps

Question 3 Apps and flows must call a partner REST API, while server-side Dataverse logic needs a reusable CalculateRisk operation with typed parameters that plug-ins and API clients can invoke. Which combination is correct?

Answer choices

  1. A. Use two canvas component libraries, for the described technical objective and its associated operational control requirements, for the stated scenario.
  2. B. Use a custom connector for the partner REST API and a Dataverse custom API for CalculateRisk, for the stated security, delivery, and accountability requirements.
  3. C. Use only environment variables for both behaviors, within the documented operational, security, ownership, and validation requirements.
  4. D. Use a model-driven command for server business logic, for the described technical objective and its associated operational control requirements.

Correct answer

Use a custom connector for the partner REST API and a Dataverse custom API for CalculateRisk, for the stated security, delivery, and accountability requirements.

Objective/domain: Create a technical design

Source: Power Apps component framework overview

Question 4 A .NET integration must create an Invoice and its required InvoiceLine records atomically: if any request fails, none of the changes should remain. Which Dataverse request pattern should it use?

Answer choices

  1. A. Use ExecuteTransactionRequest with the related requests in one transaction, under organization-wide implementation-governance requirements.
  2. B. Use ExecuteMultiple with ContinueOnError so successful records remain, for evaluation.
  3. C. Send independent requests and reconcile failures later, under organization-wide implementation-governance requirements.
  4. D. Use a client OnLoad event to submit the records together, for the described technical objective and its associated operational control requirements.

Correct answer

Use ExecuteTransactionRequest with the related requests in one transaction, under organization-wide implementation-governance requirements.

Objective/domain: Extend the platform

Source: Execute transactional requests

Question 5 A canvas gallery queries 500,000 Orders, then calls a flow to reserve the selected item. Some users see incomplete search results and assume every reservation succeeds. Which correction addresses both defects?

Answer choices

  1. A. Load all Orders into a startup collection and ignore the flow response, for the described technical objective and its associated operational control requirements.
  2. B. Use a nondelegable formula and display Success before calling the flow, within the documented operational, security, ownership, and validation requirements.
  3. C. Use delegable filters for the complete source and explicitly handle flow latency, errors, and returned reservation status, in context.
  4. D. Run the flow once nightly without an Order identifier, as the primary implementation for the described business requirement.

Correct answer

Use delegable filters for the complete source and explicitly handle flow latency, errors, and returned reservation status, in context.

Objective/domain: Implement Power Apps improvements

Source: Understand delegation in a canvas app

Question 6 An Azure Service Bus consumer receives Dataverse events. A transient failure causes a message to be delivered again, and applying it twice would create a duplicate invoice. What must the consumer do?

Answer choices

  1. A. Assume Service Bus provides exactly-once business processing, within the described operational context.
  2. B. Change the Dataverse table to organization-owned, under the documented operational and governance requirements.
  3. C. Use an idempotency key and make repeated processing safe, for consideration.
  4. D. Disable retry behavior for every transient failure, for review.

Correct answer

Use an idempotency key and make repeated processing safe, for consideration.

Objective/domain: Develop integrations

Source: Write a custom Azure-aware plug-in

Question 7 A base solution must deploy before an extension that depends on its table. Production also has a top layer hiding older behavior, and every release must pass automated checking and artifact promotion. Which ALM plan is complete?

Answer choices

  1. A. Preserve dependency order, inspect solution layers, and use Pipelines or Build Tools for checked staged deployment, within this design.
  2. B. Delete dependency metadata and import solutions alphabetically, for the described technical objective and its associated operational control requirements, in this situation.
  3. C. Edit managed production components directly, for the described technical objective and its associated operational control requirements, within the proposed design.
  4. D. Export business data as the build artifact, as the selected approach for the stated technical and business outcome.

Correct answer

Preserve dependency order, inspect solution layers, and use Pipelines or Build Tools for checked staged deployment, within this design.

Objective/domain: Build Power Platform solutions

Source: ALM basics with Microsoft Power Platform

Question 8 A proposed canvas app combines a social-media connector with a regulated customer-record connector. The environment's DLP policy classifies them into groups that cannot exchange data. The same requirement could be met with standard Dataverse features. What should the design recommend?

Answer choices

  1. A. Bypass DLP with client-side JavaScript, for the described technical objective and its associated operational control requirements, for the required outcome.
  2. B. Store credentials in a hidden label, for the described technical objective and its associated operational control requirements, as configured.
  3. C. Use the supported declarative Dataverse design and keep connector use within the DLP boundary
  4. D. Add custom code first so policy evaluation occurs later, as the selected response to the described condition.

Correct answer

Use the supported declarative Dataverse design and keep connector use within the DLP boundary

Objective/domain: Create a technical design

Source: Security roles and privileges for Dataverse

Question 9 Before an Account update is written, a plug-in must normalize the Target telephone value as part of the same database transaction. The request should not be rejected. Which stage fits?

Answer choices

  1. A. Asynchronous PostOperation, for the stated scenario.
  2. B. Synchronous PostOperation, within this context.
  3. C. PreValidation, when applied.
  4. D. PreOperation, for this requirement.

Correct answer

PreOperation, for this requirement.

Objective/domain: Extend the platform

Source: Dataverse event framework

Question 10 A model-driven app sends an unexpected update only for some users. The developer needs runtime operations, network calls, and errors from a live session. What should be started?

Answer choices

  1. A. A solution import, for this task.
  2. B. A license assignment, in the described situation.
  3. C. A component library, as the organization’s selected response.
  4. D. Power Apps Monitor, as the recommended response to this scenario.

Correct answer

Power Apps Monitor, as the recommended response to this scenario.

Objective/domain: Implement Power Apps improvements

Source: Debug apps with Monitor

Where to go after the daily web set

How are PL-400 questions generated?

dotCreds builds PL-400 practice questions from public exam objectives and Microsoft Learn and exam-objective references. The questions are written for realistic study practice, not copied from exam dumps.

How are explanations sourced?

Each question includes an explanation and, when available, a source link back to the provider documentation or reference used to validate the answer. That keeps the practice tied to study material you can actually review.

What score do I get?

The page tracks today's answered count and accuracy for the 10-question daily set, then saves a 7-day score history on this device so you can see your recent practice trend.

Why use this site?

The site is the fastest way to start PL-400 practice without installing anything. It is built for daily recall, quick weak-topic discovery, and source-backed explanations you can review immediately.