Copilot Studio Custom Prompt Tool vs Generative Answers Node
Short answer
B Configuring a custom prompt tool at the topic level breaks the connection to the Generative answers node's configured knowledge sources.
Question
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution. After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear on the review screen. A company is configuring an agent in Copilot Studio that uses a generative answers node inside multiple topics. The company requires responses to meet the following requirements: Must use an executive summary format. Must apply only within a specific topic. Must continue using configured knowledge sources. Must comply with connector security controls. You need to configure a custom prompt to meet the formatting requirements. Solution: Configure the custom prompt tool at the topic level so that other topics are not affected. Does the solution meet the goal?
Key Takeaways
This question tests the difference between adding a separate Custom prompt tool and editing the prompt inside a Generative answers node; using the tool breaks the knowledge source connection.
Configuring a separate custom prompt tool at the topic level in Copilot Studio fails to meet the requirement to continue using configured knowledge sources, as it introduces a separate execution path. The correct method is to modify the prompt instructions directly within the Generative answers node.
Common mistake: Choosing 'Yes' because the custom prompt tool can be scoped to a topic, ignoring that it replaces the Generative answers node's execution path and loses its configured knowledge sources.
Expert Analysis
Why the Answer Is Correct
The correct answer is No because configuring a separate "Custom prompt" tool at the topic level creates a distinct LLM execution path that does not inherently use the knowledge sources configured in the existing Generative answers node. While the custom prompt tool can enforce an executive summary format and apply only to a specific topic, it fails the requirement to continue using the configured knowledge sources. To meet all requirements, the custom prompt instructions must be added directly to the Generative answers node, not as a separate tool.Why the Other Options Are Wrong
Option A ("Yes") is incorrect because it assumes that any custom prompt configured at the topic level will automatically inherit the knowledge sources and security controls of the Generative answers node. A separate Custom prompt tool does not maintain this connection, thereby violating the requirement to continue using the configured knowledge sources.Community Comment Notes
Commenters debated whether a topic-level prompt inherits knowledge sources. As faisalronnie noted, a separate custom prompt tool "Introduces a separate prompt execution path" and doesn't guarantee the generative answers node's sources are used. Conversely, BolDeFruits argued it continues using sources, but linked to the generative answers node documentation, confusing the node's internal prompt with the separate Custom prompt tool.Official Reference
Exam Strategy
Pay close attention to the specific terminology used in Copilot Studio, such as "tool" versus "node". When a question requires modifying the output of an existing node while keeping its data sources, configure the prompt inside that node rather than adding a separate tool.
Community Votes
60% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 5 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded.
From public community threads 5
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BolDeFruits 👍 2 Answered ABecause the custom prompt is configured at the topic level, it provides the required executive-summary formatting for that topic only, while continuing to use the existing knowledge sources and preserving security controls. Source: https://learn.microsoft.com/en-us/microsoft-copilot-studio/nlu-boost-node
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faisalronnie 👍 2 Answered BSeparate custom prompt tool Is topic-specific Can format output But does not inherently guarantee that the answer is still being generated by the existing Generative Answers node and its configured knowledge sources Introduces a separate prompt execution path
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Snoopy70 👍 1 Answered AExecutive summary format✅ Yes, a custom prompt can instruct the generative answers node to return an executive summary. Apply only within a specific topic✅ Yes, configuring the custom prompt at the topic level limits its scope to that topic. Continue using configured knowledge sources✅ Yes, prompt modification works with the generative answers node and does not replace the knowledge sources being used. Comply with connector security controls✅ Yes, prompt modification changes the response instructions only; it doesn't alter the configured knowledge sources or their authentication/security model.
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Joselito79 👍 1 Answered AYes. ✅ Configuring the custom prompt at the topic level ensures the executive-summary formatting applies only to that specific topic, while the agent can continue using its configured knowledge sources and connector security controls. Answer: Yes, the solution meets the goal.
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massnonn 👍 1 Answered Bmissing generative node
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