- A
Convert the model-driven app to a canvas app to gain more control over data refresh and delegation.
Why wrong: The app is already a canvas app (based on the description); converting does not solve the issues.
- B
Modify the detail screen's Save button to use the Refresh() function on the gallery's data source after the form submission, and change the gallery's Items property to use a Filter query on an indexed SharePoint column to avoid delegation.
Refresh() updates the gallery with the latest data, and using Filter on an indexed column allows delegation, removing the warning and improving performance.
- C
Increase the data row limit in Power Apps settings to 2000 to prevent delegation warnings.
Why wrong: Increasing the data row limit does not remove delegation warnings; it only increases the number of records retrieved, and the warning persists if the filter cannot be delegated.
- D
Migrate the data source from SharePoint to Microsoft Dataverse to eliminate delegation warnings and improve performance.
Why wrong: Migrating to Dataverse is a major change and not required; delegation warnings can be resolved by optimizing the query.
Quick Answer
The correct action is to modify the detail screen’s Save button to use the Refresh() function on the gallery’s data source after the form submission, and change the gallery’s Items property to use a Filter query on an indexed SharePoint column. This resolves both issues because Refresh() forces the gallery to reload data immediately from the source, eliminating the need for manual refresh, while filtering on an indexed column avoids delegation warnings by ensuring the query runs server-side—SharePoint only supports delegation for indexed columns and specific operators like “begins with.” On the PL-900 exam, this scenario tests your understanding of delegation limits in Power Apps and the importance of data source optimization for performance, especially when scaling to 200 users. A common trap is assuming the Refresh() function alone fixes delegation, but it only updates the view; the real delegation fix requires using indexed columns. Memory tip: “Refresh the view, index the query”—Refresh handles stale data, indexing handles server-side filtering.
PL-900 Demonstrate the capabilities of Power Apps Practice Question
This PL-900 practice question tests your understanding of demonstrate the capabilities of power apps. 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 manufacturing company uses Power Apps to manage inventory. The app includes a main screen that displays a gallery of inventory items, a detail screen for editing item properties, and a form screen for adding new items. The app uses a SharePoint list as the data source. Recently, users reported that when they edit an item on the detail screen and save, the changes do not appear in the gallery until they manually refresh the app. Additionally, some users occasionally encounter a 'Delegation warning' when filtering the gallery by item name. The app is shared with 200 users, and performance is becoming an issue. You need to resolve these issues. Which action should you take?
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
Modify the detail screen's Save button to use the Refresh() function on the gallery's data source after the form submission, and change the gallery's Items property to use a Filter query on an indexed SharePoint column to avoid delegation.
Option B is correct because the Refresh() function after form submission ensures the gallery's data source is updated immediately, eliminating the need for manual refresh. Changing the gallery's Items property to use a Filter query on an indexed SharePoint column avoids delegation warnings by ensuring the query can be processed server-side, as SharePoint supports delegation only for indexed columns and certain operators.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Convert the model-driven app to a canvas app to gain more control over data refresh and delegation.
Why it's wrong here
The app is already a canvas app (based on the description); converting does not solve the issues.
- ✓
Modify the detail screen's Save button to use the Refresh() function on the gallery's data source after the form submission, and change the gallery's Items property to use a Filter query on an indexed SharePoint column to avoid delegation.
Why this is correct
Refresh() updates the gallery with the latest data, and using Filter on an indexed column allows delegation, removing the warning and improving performance.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Increase the data row limit in Power Apps settings to 2000 to prevent delegation warnings.
Why it's wrong here
Increasing the data row limit does not remove delegation warnings; it only increases the number of records retrieved, and the warning persists if the filter cannot be delegated.
- ✗
Migrate the data source from SharePoint to Microsoft Dataverse to eliminate delegation warnings and improve performance.
Why it's wrong here
Migrating to Dataverse is a major change and not required; delegation warnings can be resolved by optimizing the query.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think delegation warnings are solved by increasing the data row limit (Option C) or by switching data sources (Option D), when in fact the root cause is the use of non-delegable queries on unindexed columns, which can be fixed by proper filtering and indexing.
Detailed technical explanation
How to think about this question
The Refresh() function in Power Apps triggers a re-query of the data source, ensuring the gallery reflects the latest changes from the SharePoint list. Delegation warnings occur when Power Apps cannot translate a filter expression into a server-side query; using an indexed column (e.g., a single line of text column indexed in SharePoint) with the Filter() function allows the query to be delegated, avoiding the 500-item default limit for non-delegable queries. In real-world scenarios, failing to index columns or using unsupported operators (e.g., 'in' or 'startswith' on non-indexed columns) often leads to delegation warnings in large datasets.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this PL-900 question test?
Demonstrate the capabilities of Power Apps — This question tests Demonstrate the capabilities of Power Apps — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Modify the detail screen's Save button to use the Refresh() function on the gallery's data source after the form submission, and change the gallery's Items property to use a Filter query on an indexed SharePoint column to avoid delegation. — Option B is correct because the Refresh() function after form submission ensures the gallery's data source is updated immediately, eliminating the need for manual refresh. Changing the gallery's Items property to use a Filter query on an indexed SharePoint column avoids delegation warnings by ensuring the query can be processed server-side, as SharePoint supports delegation only for indexed columns and certain operators.
What should I do if I get this PL-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 12, 2026
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.
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