Copilot Agent response does not persist in the chat history

Question

Copilot Agent response does not persist in the chat history

Vinod 0 Microsoft Employee

Developed an M365 agent using Microsoft M365 Agent Toolkit. Added an API as an action to the agent. Using this agent in the M365 Copilot. Agent is showing the answers returned by the api.

But there is an issue with the chat history of this agent. Chat history does not persist the response from the copilot. Though, questions asked by me and the adaptive cards part of the answer from copilot persist.

I have not deployed this agent at organization level. I am simply provisioning using the M365 agent toolkit in VS Code.

Ayush Giri 245 Reputation points Microsoft External Staff

2025-05-29T11:38:40.44+00:00

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

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Ayush Giri 245 Reputation points Microsoft External Staff

2025-05-29T11:38:40.44+00:00

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

Answer 1

Ayush Giri 245 Microsoft External Staff

Hi Vinod,

This behavior is typically due to the agent rendering responses dynamically in the frontend without using the Bot Framework’s sendActivity() method. Only messages sent using supported formats (e.g., plain text, adaptive cards) and through the correct SDK methods are persisted in the chat transcript. Solution

Use context.sendActivity() to send all responses:

await context.sendActivity({

type: 'message',

text: 'Your API response here',

attachments: [adaptiveCard] }); ```

Avoid frontend-only rendering: Ensure that all responses are sent through the Bot Framework, not just displayed in the UI. Verify SDK Initialization: Ensure the Teams SDK is properly initialized and the app is hosted in a Teams-compatible context. Check MCP Server/Client Setup: If using MCP, confirm that the server is configured to persist responses and update resource data accordingly.

Supporting Documentation

Microsoft Learn: Add your agent to Teams

[11-8-2024] CZD Copilot and AI Standup – Highlights the need to upgrade support for conversation history [DAS AI Ready - AI Padawan Series] Mastering DFM Copilot - Rodrigo's Version – Emphasizes the importance of feedback and response tracking Build your own copilot chat.docx– Discusses best practices for building persistent and interactive Copilot agents

Karan Shewale MSFT 0 Reputation points

2025-06-02T05:11:18.4733333+00:00

Hi Vinod,

I am following up regarding the guidance provided for your recent support request. Could you please confirm if the solution addressed your issue satisfactorily?

If you require any further assistance or have additional questions, please do not hesitate to reach out. I am happy to assist further.

Thanks,

Karan Shewale

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Vinod 0 Reputation points Microsoft Employee

2025-06-02T07:20:11.4+00:00

Hi Karan, I have developed declarative agent and calling an api using the add action functionality. I have not written any code. Here is the reference I have used to develop my agent. https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/build-declarative-agents?tutorial-step=12
Karan Shewale 170 Reputation points Microsoft External Staff

2025-06-04T12:48:41.64+00:00
Hi Vinod,

Thanks for explaining your situation. What you’re seeing is normal when using the M365 Agent Toolkit in preview or local mode. Right now, Copilot only saves your questions and any adaptive cards in the chat history. Other types of responses from the agent, like plain text or API results, won’t show up in the chat history unless you use adaptive cards to display them.

Helpful links:

Overview: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/agents/overview

Toolkit limitations: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/agents/limitations

Full documentation: https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/agents/

What you can do:

Show important API results using adaptive cards so they stay in the chat history.

For full chat history and production use, consider deploying your agent at the organization level.

Keep an eye on the official docs for any updates about chat history features.

Thanks,

Karan Shewale.

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If the response is helpful, please click "Accept Answer" and upvote it. You can share your feedback via Microsoft Teams Developer Feedback link. Click here to escalate.

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Copilot Agent response does not persist in the chat history

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