Thanks for answering Anil.
It was not field but marked as optional. Even when field the error remains.
Here is the complete message :
Microsoft.Graph.ServiceException: Code: generalException
Message: An error occurred sending the request.
—> Microsoft.Identity.Client.MsalServiceException: AADSTS1002012: The provided value for scope mail.read mail.readwrite mail.send is not valid. Client credential flows must have a scope value with /.default suffixed to the resource identifier (application ID URI). Trace ID: 2a332757-c89b-4f57-9bfb-78593facb900 Correlation ID: 7555905c-12c3-46d8-a5a5-107d91c835a3 Timestamp: 2024-02-29 08:18:30Z at Microsoft.Identity.Client.Internal.Requests.RequestBase.HandleTokenRefreshErrorAsync(MsalServiceException e, MsalAccessTokenCacheItem cachedAccessTokenItem)
at Microsoft.Identity.Client.Internal.Requests.ClientCredentialRequest.ExecuteAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.Requests.RequestBase.RunAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.ApiConfig.Executors.ConfidentialClientExecutor.ExecuteAsync(AcquireTokenCommonParameters commonParameters, AcquireTokenForClientParameters clientParameters, CancellationToken cancellationToken)
at UiPath.Shared.Authentication.Microsoft.Services.MsalLogonService.AuthenticateInternalAsync(OAuthDataOptions oauth, CancellationToken cancellationToken)
at UiPath.Shared.Authentication.Microsoft.Services.MsalLogonService.AuthenticateAsync(OAuthDataOptions oauth, CancellationToken cancellationToken)
at UiPath.Shared.Services.Graph.GraphClientServiceFactory.TimeoutAfter[TResult](Task1 task, String authenticationType, Int32 timeoutMs) at UiPath.Shared.Services.Graph.GraphClientServiceFactory.LoginFromCacheOrExplicitAsync(OAuthDataOptions model, CancellationToken ct) at UiPath.Shared.Services.Graph.GraphClientServiceFactory.ResolveAccessTokenAsync(Task
1 authResolver)
at UiPath.Shared.Services.Graph.GraphClientServiceFactory.AuthenticateAsync(OAuthDataOptions model, CancellationToken cancellationToken)
at UiPath.Shared.Authentication.Microsoft.Extensions.HttpRequestMessageExtensions.AuthorizeAsync(HttpRequestMessage request, Func2 getToken, CancellationToken ct) at Microsoft.Graph.AuthenticationHandler.SendAsync(HttpRequestMessage httpRequestMessage, CancellationToken cancellationToken) at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken) at Microsoft.Graph.SimpleHttpProvider.SendRequestAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken) --- End of inner exception stack trace --- at Microsoft.Graph.SimpleHttpProvider.SendRequestAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken) at Microsoft.Graph.SimpleHttpProvider.SendAsync(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationToken cancellationToken) at Microsoft.Graph.BaseRequest.SendRequestAsync(Object serializableObject, CancellationToken cancellationToken, HttpCompletionOption completionOption) at Microsoft.Graph.BaseRequest.SendAsync[T](Object serializableObject, CancellationToken cancellationToken, HttpCompletionOption completionOption) at UiPath.Shared.Services.Graph.Mail.Extensions.GraphServiceClientExtensions.SaveMailMessageAsDraftAsync(GraphServiceClient graphClient, Message message, String address, CancellationToken cancellationToken) at UiPath.MicrosoftOffice365.Extensions.FromShared.GraphServiceClientExtensions.CreateDraftMailMessageAsync(GraphServiceClient graphClient, String address, String[] toRecipients, String subject, String body, IResource[] attachments, String[] ccRecipients, String[] bccRecipients, String[] replyToRecipients, String fromRecipient, Boolean isBodyHtml, Importance importance, IEnumerable
1 contentIdMap, CancellationToken cancellationToken)
at UiPath.MicrosoftOffice365.Services.GraphServiceClientProxy.SendMailAsync(SendMailRequest request, CancellationToken cancellationToken)
at UiPath.MicrosoftOffice365.Activities.Mail.SendMail.ExecuteAsync(AsyncCodeActivityContext context, CancellationToken cancellationToken)
at UiPath.Shared.Activities.AsyncTaskCodeActivityImplementation.EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
at UiPath.Shared.Activities.AsyncTaskCodeActivity.EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
at UiPath.Shared.Activities.ContinuableAsyncCodeActivity.EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
at UiPath.MicrosoftOffice365.Activities.Office365BaseClientActivity.EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
at UiPath.MicrosoftOffice365.Activities.Office365ClientActivity`2.EndExecute(AsyncCodeActivityContext context, IAsyncResult result)
at System.Activities.AsyncCodeActivity.System.Activities.IAsyncCodeActivity.FinishExecution(AsyncCodeActivityContext context, IAsyncResult result)
at System.Activities.AsyncCodeActivity.CompleteAsyncCodeActivityData.CompleteAsyncCodeActivityWorkItem.Execute(ActivityExecutor executor, BookmarkManager bookmarkManager)
Cheers