SystemError in Teams Group Chat for Copilot Studio Agent

Hi Chiyo​ 

Thanks for sharing. It's interesting scenario.

since the agent works in 1:1 chats for all user and also works in the group chat for you, this doesn't immediately point to a problem with the agent configuration itself. It may be worth checking whether the issue is related to how the agent is being resolved or authorized for other users within that specific Teams group chat.

I would first check whether the behavior is reproducible in a new Teams group chat and whether it affects all users or only specific users. If the problem only occurs for other users in Teams group chats while 1:1 conversation continues to work, I would recommend opening a support ticket and including the MCS-4041 reference code.