Natural Language to call tools Vs Structured Topic, when to use each any why?

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Natural Language to call tools Vs Structured Topic, when to use each any why?

john john Pter 1,245

when developing copilot chat-bot using copilot studio, we can either create a topic and structurally call different tools, or we can create separate tools and inside the agent instruction to write in natural language how we want those tools to be called, so which approach we should use and why?

Karan Shewale 1,945 Reputation points Microsoft External Staff

2025-10-28T05:05:14.88+00:00

Thanks for bringing this issue to our attention. We will check and update you soon.

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Karan Shewale 1,945 Reputation points Microsoft External Staff

2025-10-28T05:05:14.88+00:00

Thanks for bringing this issue to our attention. We will check and update you soon.

Answer 1

Hi John, use Structured Topics when your Copilot chatbot needs clear, step-by-step logic or fixed processes like form submissions or approvals. This gives better control, testing, and predictable results. Use Natural Language tool calls when you want Copilot to decide when and how to use tools based on user input. This works better for open-ended, flexible conversations. In most cases, combine both — let natural language trigger a structured topic for reliable execution.

References:

Thank you.

Karan Shewale.

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Natural Language to call tools Vs Structured Topic, when to use each any why?

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