- A
A calculated field that computes the difference between created and resolved dates.
Why wrong: Calculated fields work on the same record only and cannot reference status changes.
- B
A real-time workflow (cloud flow) triggered when a case is resolved.
Real-time workflows can run synchronously when a record's status changes and perform calculations.
- C
A business rule that sets the resolution time field when the status changes.
Why wrong: Business rules can set fields but they run on form load or field change, not on save or status change.
- D
A scheduled Power Automate flow that runs every hour and updates resolved cases.
Why wrong: Scheduled flows are not triggered by status change and would be inefficient.
PL-900 Real-time workflow Practice Question
This PL-900 practice question tests your understanding of demonstrate the capabilities of power apps. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: real-time workflow. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses a model-driven app to manage customer cases. The app needs to ensure that when a case is resolved, the resolution time (in hours) is automatically calculated and stored in a custom field. Which feature should be used?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
A real-time workflow (cloud flow) triggered when a case is resolved.
Option A (calculated field) is incorrect because calculated fields are computed only when the record is created or updated via the form, and they cannot recalculate based on subsequent status changes. Option B (real-time workflow/cloud flow) is correct because a Power Automate cloud flow can be triggered immediately when a case is updated and, if the status is 'Resolved', calculate the resolution time and update the custom field. Option C (business rule) is incorrect because business rules run on the client side and cannot perform calculations that persist to the database or reference other record fields dynamically. Option D (scheduled flow) is incorrect because it runs on a timer, not in response to the status change, resulting in delays and potential inaccuracies.
Key principle: Real-time workflow
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A calculated field that computes the difference between created and resolved dates.
Why it's wrong here
Calculated fields work on the same record only and cannot reference status changes.
- ✓
A real-time workflow (cloud flow) triggered when a case is resolved.
Why this is correct
Real-time workflows can run synchronously when a record's status changes and perform calculations.
Related concept
Real-time workflow
- ✗
A business rule that sets the resolution time field when the status changes.
Why it's wrong here
Business rules can set fields but they run on form load or field change, not on save or status change.
- ✗
A scheduled Power Automate flow that runs every hour and updates resolved cases.
Why it's wrong here
Scheduled flows are not triggered by status change and would be inefficient.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Real-time workflow
- Calculated field
- Business rule
- Scheduled flow
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Real-time workflow
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Visual reference
What to study next
Got this wrong? Here's your next step.
Review real-time workflow, then practise related PL-900 questions on the same topic to reinforce the concept.
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Demonstrate the capabilities of Power Apps — study guide chapter
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FAQ
Questions learners often ask
What does this PL-900 question test?
Demonstrate the capabilities of Power Apps — This question tests Demonstrate the capabilities of Power Apps — Real-time workflow.
What is the correct answer to this question?
The correct answer is: A real-time workflow (cloud flow) triggered when a case is resolved. — Option A (calculated field) is incorrect because calculated fields are computed only when the record is created or updated via the form, and they cannot recalculate based on subsequent status changes. Option B (real-time workflow/cloud flow) is correct because a Power Automate cloud flow can be triggered immediately when a case is updated and, if the status is 'Resolved', calculate the resolution time and update the custom field. Option C (business rule) is incorrect because business rules run on the client side and cannot perform calculations that persist to the database or reference other record fields dynamically. Option D (scheduled flow) is incorrect because it runs on a timer, not in response to the status change, resulting in delays and potential inaccuracies.
What should I do if I get this PL-900 question wrong?
Review real-time workflow, then practise related PL-900 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Real-time workflow
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Last reviewed: Jun 21, 2026
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