Copilot agent connection with teams

Hi @Himanshu Dhamija

Thank you for sharing your concerns. 

I understand that your Copilot agents work as expected when used within Microsoft Copilot, but they do not receive or respond to messages in Microsoft Teams, even though the app is visible, opens correctly, and displays prompt suggestions. 

To troubleshoot it, you could try to follow these steps: 

Verify the Personal Chat Scope in Copilot Studio. 

Go to your agent, then navigate to Settings > Channels > Microsoft Teams. 

Make sure the Personal scope (also labeled as Personal chat) is explicitly enabled. 

Even if the overall Teams channel is already turned on, the Personal scope is a separate setting that controls whether the agent can properly handle one-on-one chats. Once enabled, save the changes and fully republish the agent. 

Install the agent correctly inside Microsoft Teams. 

Open the Apps tab on the left sidebar, search for your agent’s name, and install it specifically as a Personal app. This is different from adding it as a tab in a team or channel. After installing, start a fresh 1:1 chat with the agent and test it again. 

If the above method doesn’t resolve it, you could try checking the Teams Admin Center

Go to Org-wide app settings and confirm that custom apps are allowed. Then, under Setup policies, make sure the policy assigned to your users has “Upload custom apps” enabled. These policies sometimes silently block agents from receiving messages even when everything else looks correct.

Additionally, you could also double-check the authentication settings in Copilot Studio.

Go to Settings > Security > Authentication and ensure everything is configured properly. Then, return to the Teams channel settings and confirm that the option “Use when a user is signed in” is enabled. Incorrect authentication can cause the agent to ignore incoming messages from Teams. 

After making any changes, always republish the agent in Copilot Studio. Then, in Teams, look for the “Built for your org” section and update the app if the option appears. This ensures the latest version with your changes is active. 

You can refer more via: Solved: Critical Issue: Copilot Studio Agents Not Responding in Microsoft Teams Channel 

Please note that this summary is based on my own findings and may not fully address your concerns. To resolve this, Microsoft’s support team will need to step in. A technical support engineer can perform a remote session to investigate the situation, verify the backend configurations, and run any necessary synchronization tools to resolve the problem. If the issue requires further attention, they can escalate it to a specialized team for deeper analysis.    

Reference: Get support - Microsoft 365 admin | Microsoft Learn 

Note: To create a support ticket, you need to have Microsoft 365 admin privileges and if you aren’t admin of your organization, please contact the admin of creating a new ticket. 

Apologies for redirecting you to the related development team support. As moderators in this community, we do not have access to your specific tenant configuration, and my testing environment is limited. Therefore, my guidance is based on available Microsoft documentation and resources. That said, I’ll do my best to provide additional insight where possible.  

If you have any additional concerns, feel free to comment below. I would be more than happy to assist. 

Note: Please follow the steps in [our documentation] to enable e-mail notifications if you want to receive the related email notification for this thread. 

The agents are connected correctly to Microsoft 365 Copilot, but Teams is likely still using an outdated or incomplete configuration of the agent, or the Teams channel connection needs to be refreshed.

Use the following steps to troubleshoot and refresh the Teams connection and configuration:

1. Confirm prerequisites and sharing
   • Ensure the agent has been published at least once before using it in Teams.
   • Verify the agent is shared with the users who are testing it so they can install and chat with it in Teams and Microsoft 365 Copilot.
   • Confirm that your organization allows Power Platform apps to be added to Teams; otherwise, agents cannot function correctly in Teams even if they appear.
2. Verify the Teams and Microsoft 365 Copilot channel configuration
   • In Copilot Studio, open the agent.
   • On the top menu bar, select Channels.
   • Select the Teams and Microsoft 365 Copilot tile to open the configuration panel.
   • Make sure the Teams channel is enabled and, if desired, that Make agent available in Microsoft 365 Copilot is selected.
   • If the channel shows an Update now button instead of Add, select Update now to reinstall/update the agent in Teams.
3. Reinstall the agent in Teams for the affected user
   • From the same configuration panel, select See agent in Teams.
   • In the Teams dialog that opens, select Add to install the agent to the user’s Teams profile.
   • Start a new conversation with the agent in Teams and test again.
   • If testing in an existing conversation, type Start over to force a new conversation so the latest content is used.
4. Refresh the agent configuration when Teams is not responding Teams can sometimes keep using a previous version of the agent or not refresh configuration, which can cause failures at runtime.
   • In the Microsoft Teams admin center, locate the agent app, disable it, wait a few seconds, and then re‑enable it.
   • In Copilot Studio, open the Teams and Microsoft 365 Copilot channel configuration and turn off the Teams channel for the agent, save, then turn it back on.
   • Republish the agent so the latest version is available to Teams.
   • Reopen the agent in Teams and test again.
5. Consider known limitations
   • After disconnecting or changing the Teams channel, it can take a few minutes before Teams fully reflects the change; wait briefly and retry.
   • In group or channel chats, agents cannot use knowledge sources that require end‑user authentication; test in a 1:1 chat with the agent to rule this out.

If, after these steps, the agent still shows suggestions but never responds to user messages in Teams, collect a Conversation ID, Agent ID, and the time of the failed interaction and contact Microsoft Support so they can inspect the backend execution.

References:

• Connect and configure an agent for Teams and Microsoft 365
• Extend Microsoft 365 Copilot with agents