Custom Engine Agents in Microsoft 365 Copilot

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Agents in BizChat has been available for some time already, but now there is an upcoming update to Agents. The introduction of “ custom engine agents ” in Microsoft 365 Copilot! These specialized agents can be built on any large language model (LLM), toolchain, or orchestration tool, tailored specifically for your domain or tenant workflows. Initially supported in Microsoft Teams, this feature will soon be available in Microsoft 365 Copilot Business Chat ( BizChat ).   The introduction of Custom engine agents enables your organization to create customized experiences using your own AI systems and orchestrators. You can design unique prompts, connect to any LLM, and integrate these custom agents with Microsoft 365 Copilot. After the rollout, users will be able to access these agents, provided they are enabled and deployed in the Microsoft 365 admin center under the Copilot tab.   You can read more about the feature on this page . Eligible users can create agents using Micros...

Lync client may connect to a non federated partner, even if you though it should not.

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Here is an "interesting" observation I did a couple of days ago. The customer has chosen not to allow DNS discovery of federated partners, but will allow federation with selected partners on the allow list. After a while with this configuration, the customer called me and told me they had mixed experiences with the solution. There were times when meetings with a partner (NOT on the allow list) actually would work, even if they expected the meeting to fail.

They asked me to verify the settings, and to investigate why some users reported they could connect to a meeting others couldn't.

This is what I saw on a client who failed to connect:




5 messages. And the interesting one would be the 504 message: "Can not route".



And then the client stops trying, as I would expect it to.

But here is an interesting twist. Log on with the same client from a remote connection (through edge), and then let's see what happens.



The client does not honor the 504 message "Can not route". It continues and connects to the meeting, unexpectedly. How can that be?

The interesting part is what happens after the 504 message. First the client acknowledges the rejection, but then it does something it didn't do on the inside. There is a new invite, trying to connect anonymously:



And this connection is allowed. Quite confusing for the end user, actually. But now they know.


It is important to note the user was allowed for federation in this scenario, but the domain in question was not in the allow list and DNS discovery was not allowed. Also, the organizer on the other side was allowing anonymous invites.