Quick Answer
The answer is the Recurrence trigger. This is the correct choice because it initiates a flow on a fixed schedule, such as every hour, independent of any external events like file additions in SharePoint. The Recurrence trigger is designed for polling scenarios where you need to periodically check a data source, making it ideal for your requirement to run a scheduled flow that verifies for new files at set intervals. On the Microsoft Power Platform Fundamentals PL-900 exam, this question tests your understanding of trigger types: event-driven triggers (like "When a file is created") react instantly to changes, while the Recurrence trigger runs autonomously on a timer. A common trap is confusing Recurrence with the "When a file is created" trigger, but remember that Recurrence is for scheduled checks, not real-time responses. Memory tip: "Recurrence repeats on a routine; events only act when something happens."
This PL-900 practice question tests your understanding of demonstrate the capabilities of power automate. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
You need to create a flow that runs every hour and checks if any new files have been added to a SharePoint document library. Which trigger type should you use?
Compose
Why wrong: Compose is an action, not a trigger.
When an item is created
Why wrong: This trigger fires immediately when an item is created, not on a schedule.
Recurrence
The Recurrence trigger allows you to run a flow on a schedule, such as every hour.
Power Apps button
Why wrong: This is a manual trigger, not scheduled.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Recurrence
The Recurrence trigger is the correct choice because it initiates a flow on a fixed schedule (e.g., every hour) regardless of any events occurring in SharePoint. This trigger is ideal for polling scenarios where you need to periodically check for new files, as it runs autonomously without requiring an external event.
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.
Compose
Why it's wrong here
Compose is an action, not a trigger.
When an item is created
Why it's wrong here
This trigger fires immediately when an item is created, not on a schedule.
Recurrence
Why this is correct
The Recurrence trigger allows you to run a flow on a schedule, such as every hour.
Related concept
Read the scenario before looking for a memorised answer.
Power Apps button
Why it's wrong here
This is a manual trigger, not scheduled.
Common exam traps
The trap here is that candidates often confuse event-driven triggers (like 'When an item is created') with schedule-based triggers, assuming that a trigger that reacts to new items can also run on a timer, but in Power Automate, triggers are mutually exclusive—they either respond to events or run on a schedule, not both.
Detailed technical explanation
Under the hood, the Recurrence trigger uses a cron-like schedule defined in the flow's runtime, with a minimum interval of 1 minute and a maximum of 30 days. In a real-world scenario, if you need to check for files added during a specific window (e.g., overnight batch uploads), a Recurrence trigger combined with a 'Get files' action and a filter query on the 'Created' timestamp ensures you capture only new items since the last run, avoiding duplicate processing.
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: Recurrence — The Recurrence trigger is the correct choice because it initiates a flow on a fixed schedule (e.g., every hour) regardless of any events occurring in SharePoint. This trigger is ideal for polling scenarios where you need to periodically check for new files, as it runs autonomously without requiring an external event.
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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