Not able to fetch the status of user from Teams using graph client

ChetanSharma-msft 

We have updated the code to add the scope Presence.Read in scopes.

try
            {
                var clientId = "#client id";
                var clientSecret = "# client secret";
                var tenantId = "# tenant id";

                string authority = $"https://login.microsoftonline.com/{tenantId}";
                string scope = "https://graph.microsoft.com/.default";

                IConfidentialClientApplication app = ConfidentialClientApplicationBuilder
                    .Create(clientId)
                    .WithClientSecret(clientSecret)
                    .WithAuthority(new Uri(authority))
                    .Build();

                string[] scopes = new[] { scope, "Presence.Read" };


                AuthenticationResult result = await app.AcquireTokenForClient(scopes)
                    .ExecuteAsync();

                string accessToken = result.AccessToken;

                // Create a GraphServiceClient instance using the obtained access token
                GraphServiceClient graphClient = new GraphServiceClient(
                    new DelegateAuthenticationProvider(requestMessage =>
                    {
                        requestMessage.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);
                        return Task.FromResult(0);
                    }));

                // Use the graphClient to make requests to Microsoft Graph API
                var user = await graphClient.Users[connectionRequest.Requestor.User.AadObjectId].Presence.Request().GetAsync();

            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "------------- There was an error while getting  status");
            }

And getting the below exception,

We are able to fetch the status by giving the correct token explicitly.