Power Platform Community Forum Thread Details

Hi everyone, I am new to the Copilot Studio and following this document:
https://learn.microsoft.com/en-us/microsoft-copilot-studio/publication-integrate-web-or-native-app-m365-agents-sdk?tabs=dotnet#configure-your-app-registration-for-service-principal

using the example console app in the document:
https://github.com/microsoft/Agents/tree/main/samples/dotnet/copilotstudio-client

I want to call copilot agent api using UseS2SConnection and already added the Application permission - Copilot Studio.Copilots.Invoke to my app registration.

But my programme throws this error:

ThirdPartyAuthenticatedPublishedBotController.EnableS2SAuthFeature (Feature) not enabled

System.Net.Http.HttpRequestException: Error sending request: MethodNotAllowed. Feature ThirdPartyAuthenticatedPublishedBotController.EnableS2SAuthFeature (Feature) not enabled.
at Microsoft.Agents.CopilotStudio.Client.CopilotClient.PostRequestAsync(HttpRequestMessage req, CancellationToken ct)+MoveNext()
at Microsoft.Agents.CopilotStudio.Client.CopilotClient.PostRequestAsync(HttpRequestMessage req, CancellationToken ct)+System.Threading.Tasks.Sources.IValueTaskSource<System.Boolean>.GetResult()

Does anyone know where I should turn on this "ThirdPartyAuthenticatedPublishedBotController.EnableS2SAuthFeature" in Copilot Studio? I've checked the settings but can't find it.