Hi everyone, starting from this morning, all my agents that use Dynamics 365 MCP to interact with Dynamics 365 Finance and Operations stopped working.
The strange thing is that the other agents are still working correctly. The issue seems to affect only the agents that rely on MCP to communicate with F&O. Agents based only on generic instructions or other non-MCP configurations are fine.
The error returned by Copilot Studio / the agent is very generic:
Sorry, something went wrong.
Error code: SystemError.
Conversation ID: 61ed6d8f-70e8-4181-8bb4-3d538e079cf0.
Time (UTC): 5/20/2026 9:42:31 AM.
I have checked the previous discussions in the forum about similar SystemError issues, but so far I have not been able to identify a clear solution.
Any suggestion or experience would be very helpful.
Thanks in advance,
Diego

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