PL-900 Practice Question: Demonstrate the capabilities of Power Automate
You need to create a flow that sends an email notification when a new file is added to a OneDrive for Business folder. Which trigger should you use?
⚠ Common exam trap
A common mix-up: candidates confuse the 'OneDrive' and 'OneDrive for Business' connectors, assuming they are interchangeable, but they target different services with different authentication and API scopes.
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
✓
When a file is created (OneDrive for Business)
The requirement specifies a OneDrive for Business folder, and the 'When a file is created (OneDrive for Business)' trigger is the only one that directly monitors a OneDrive for Business location for new file additions. This trigger uses the OneDrive for Business connector, which is designed to work with the Microsoft Graph API for OneDrive for Business, and it fires specifically when a new file is created, not modified.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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When a file is created (SharePoint)
Why it's wrong here
The SharePoint trigger fires only for libraries in SharePoint sites, so files added to a OneDrive for Business folder never raise it. It is tempting because both connectors share the same underlying file-event model, and it would be correct if the monitored location were a SharePoint document library instead of OneDrive.
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When a file is modified (OneDrive for Business)
Why it's wrong here
The modified trigger fires on edits to existing files, not on newly added ones, so a file dropped into the folder would not start the flow. It suits scenarios where you must react to content changes, such as detecting edits to a shared document.
- ✓
When a file is created (OneDrive for Business)
Why this is correct
The OneDrive for Business 'When a file is created' trigger fires whenever a new file appears in the specified folder, satisfying the requirement to notify on file addition. It polls the chosen folder and passes file metadata to subsequent actions.
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When a file is created (OneDrive)
Why it's wrong here
This trigger targets a personal OneDrive account, not OneDrive for Business, so it cannot monitor the specified business folder. It is the right choice when the flow must watch a consumer OneDrive, for example a personal backup folder.
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