Quick Answer
The answer is to review the flow run history and look for the 'skipped' status. This is correct because Power Automate enforces service protection limits to prevent excessive resource consumption, and when a flow is throttled, it does not fail—instead, the system marks those runs as 'skipped' in the run history. By filtering for this status, you directly confirm whether your flow is being rate-limited, which explains why incoming emails from a shared mailbox are being missed. On the PL-900 exam, this scenario tests your understanding of how to diagnose throttling issues, often appearing as a trap where candidates might look for 'failed' runs instead. A common memory tip: think of 'skipped' as the flow being politely told to wait its turn, not that it broke.
This PL-900 practice question tests your understanding of demonstrate the capabilities of power automate. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 Power Automate flow processes incoming emails from a shared mailbox. Recently, some emails are being missed. You suspect the flow is hitting a service protection limit. Which action should you take to diagnose the issue?
Use the 'Peek code' feature to review the flow definition.
Why wrong: Peek code shows the JSON definition but not runtime throttling.
Check the gateway status for the shared mailbox.
Why wrong: Shared mailboxes do not require a gateway.
Review the flow run history and look for 'skipped' status.
Skipped runs indicate throttling or quota limits.
Pause the flow and restart it.
Why wrong: Pausing does not reveal throttling information.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Review the flow run history and look for 'skipped' status.
Option C is correct because flow run history in Power Automate explicitly records 'skipped' status for runs that were throttled due to service protection limits. By reviewing the run history and filtering for 'skipped' runs, you can directly confirm whether the flow is being rate-limited, which is the most likely cause of missed emails.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Use the 'Peek code' feature to review the flow definition.
Why it's wrong here
Peek code shows the JSON definition but not runtime throttling.
Check the gateway status for the shared mailbox.
Why it's wrong here
Shared mailboxes do not require a gateway.
Review the flow run history and look for 'skipped' status.
Why this is correct
Skipped runs indicate throttling or quota limits.
Related concept
Read the scenario before looking for a memorised answer.
Pause the flow and restart it.
Why it's wrong here
Pausing does not reveal throttling information.
Common exam traps
The trap here is that candidates may confuse 'skipped' status with 'failed' status, or assume that pausing/restarting the flow (Option D) is a valid diagnostic step, when in fact only run history provides the specific throttling evidence needed.
Trap categories for this question
Command / output trap
Peek code shows the JSON definition but not runtime throttling.
Detailed technical explanation
Power Automate enforces service protection limits (e.g., 500,000 API calls per day per tenant, or 30 requests per minute per connection) to ensure fair resource usage. When a flow exceeds these limits, subsequent runs are not executed but are recorded with a 'skipped' status in the run history, often accompanied by a '429 Too Many Requests' HTTP response code. In a real-world scenario, a flow processing a high-volume shared mailbox might hit the per-connection rate limit, and reviewing skipped runs helps differentiate throttling from other failures like permission errors or connector outages.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
Demonstrate the capabilities of Power Automate — This question tests Demonstrate the capabilities of Power Automate — Read the scenario before looking for a memorised answer..
The correct answer is: Review the flow run history and look for 'skipped' status. — Option C is correct because flow run history in Power Automate explicitly records 'skipped' status for runs that were throttled due to service protection limits. By reviewing the run history and filtering for 'skipped' runs, you can directly confirm whether the flow is being rate-limited, which is the most likely cause of missed emails.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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