Graph API integration in copilot agent

Hi everyone,

I’m looking to set up the Microsoft Graph API in a Copilot agent and API plugin. I have an OpenAPI description document for the /me endpoint, which should fetch user information, but it's not working as expected.

Do I need to register an app or follow any specific steps to make this work? I've come across some Microsoft documentation, but it's a bit confusing.

Any help would be greatly appreciated!

Below links I followed 

https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/api-plugin-manifest-2.2

https://learn.microsoft.com/en-us/microsoft-365-copilot/extensibility/openapi-document-guidance