PL-900 Demonstrate the capabilities of Power Apps Practice Question
A canvas app displays incorrect data because the source SharePoint list has a lookup column to another list. The app maker used 'Choices' function to populate a dropdown, but the dropdown shows IDs instead of display names. What is the cause?
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 Choices function was used on a lookup column, which returns a table of IDs; use Choices( [List].[Column].DisplayName ) instead.
The Choices function when used on a lookup column returns a table of IDs by default, not display names. To get display names, the correct syntax is Choices([List].[Column].DisplayName). Option B is incorrect because the Choices function returns both IDs and display names; the DisplayFields property is not needed if using the correct syntax. Option C is incorrect because lookup columns are typically text-based, not number types. Option D is incorrect because delegation is not relevant to this 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 Choices function was used on a lookup column, which returns a table of IDs; use Choices( [List].[Column].DisplayName ) instead.
Why this is correct
For lookup columns, Choices returns the ID table; use the DisplayName property to get display names.
- ✗
The Choices function was used correctly but the dropdown's DisplayFields property is not set to the display name column.
Why it's wrong here
Choices returns a table; the dropdown's DisplayFields should reference the display name, but the issue is Choices itself.
- ✗
The lookup column is a number type, not text, so it cannot show names.
Why it's wrong here
Lookup columns store references, not numbers.
- ✗
The formula is not delegable, causing only partial data.
Why it's wrong here
Delegation affects query limits, not display of lookup values.
Go deeper
Related to this question
About these practice questions
One of 904 original PL-900 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PL-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PL-900 exam.