PL-900 Practice Question: Demonstrate the capabilities of Power Automate
A marketing coordinator creates a Power Automate cloud flow that sends a personalized email to each attendee of an event. The coordinator stores attendee names and email addresses in a Microsoft Excel table in OneDrive for Business. After the flow runs, the coordinator discovers the emails were sent to the wrong recipients. The flow uses an 'Apply to each' loop over the Excel rows. What is the most likely cause?
⚠ Common exam trap
The trap here is assuming the data source is at fault, when misrouted emails usually come from referencing the wrong dynamic content token.
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
✓
The email action references dynamic content from outside the loop instead of the current iteration's row.
In an 'Apply to each' loop, dynamic content must reference the current iteration's item. If the email action instead uses a token from an earlier step, that single value is reused for every recipient, producing misrouted emails. Binding the recipient field to the loop's current row properties resolves the issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The email action references dynamic content from outside the loop instead of the current iteration's row.
Why this is correct
If the Send an email action inside the loop uses a dynamic content token captured from a step outside the loop, every iteration sends to the same address. The correct pattern is to reference the current item's properties from the 'Apply to each' output so each iteration uses its own row's email address.
- ✗
The Excel connector cannot read tables in OneDrive for Business and returned cached data.
Why it's wrong here
The Excel Online (Business) connector fully supports reading tables in OneDrive for Business and SharePoint. It does not return stale cached rows; it retrieves current table data. Misrouted emails therefore stem from how the loop references row values, not from an unsupported or cached data source.
- ✗
The flow's connection to Excel expired, so the loop reused the first row for all iterations.
Why it's wrong here
An expired connection prevents the action from running and surfaces an authentication error in run history; it does not silently duplicate the first row. Since the emails actually sent, the connection was valid, so expiration is not the cause of the misrouted messages.
- ✗
The 'Apply to each' loop requires a Filter array action to sort rows before sending.
Why it's wrong here
Filter array selects a subset of a collection but does not sort or bind row values to email recipients. Even with a filter, the email action must still reference the correct per-iteration row; adding a filter would not fix misrouted emails and is not a requirement of the loop.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
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