I originally published my agent using Microsoft authentication. Later, when I explored deploying it to a custom web app, I switched the authentication method to Manual, enabled Single Sign-On for Teams by providing a token exchange URL, and added the Client ID and Resource URI in the channel options. After reverting the authentication back to Microsoft for Teams deployment only, I found that I couldn't delete the Client ID and Resource URI from the channel options. I keep getting this error:
One or more validation errors occurred. singleSignOnAadApplicationClientId: Error converting value "" to type 'System.Guid'. Path 'singleSignOnAadApplicationClientId', line 1, position 44119.
I also deleted the app registration from Entra, tried publishing with no authentication and then with Microsoft, removed and re-added the channel, but the old information remains, and removing it still causes the error.
Only documented limitation I can find is:
Known issues
If you first published your agent by using manual authentication without Teams SSO, the agent in Teams continuously prompts users to sign in.

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