Message: The underlying connection was closed: An unexpected error occurred on a send.Īt ()Īt .() Type: .ServiceRequestExceptionĪt .ServiceRequestBase.GetEwsHttpWebResponse(IEwsHttpWebRequest request)Īt .ServiceRequestBase.ValidateAndEmitRequest(IEwsHttpWebRequest& request)Īt .ExchangeService.InternalBindToFolders(IEnumerable`1 folderIds, PropertySet propertySet, ServiceErrorHandling errorHandling)Īt .ExchangeService.BindToFolder(FolderId folderId, PropertySet propertySet)Īt .() The underlying connection was closed: An unexpected error occurred on a send. Wait awhile and try configuring the connection again (in the server configuration wizard, click Back, then Next to return to the Configuration step and click Configure).I am trying to 'Exchange Web Services synchronization, notification, availability, and Automatic Replies' test from .Ĭreating a temporary folder to perform synchronization tests.įailed to create temporary folder for performing tests. the application has just been registered, but not all changes have been propagated in your Azure AD.Make sure that you have provided correct registration details and try again. you have provided incorrect Client ID and/or Tenant ID in the Application details step of the server connection wizard.If so, make sure to register it again ( automatically or manually), CodeTwo Exchange Migration has been deleted from your Azure AD.You will get this error if you enter an incorrect Certificate thumbprint / Client secret (app password) in the Application details step, if that certificate / client secret no longer exists in your Azure AD, or if it has expired.ĪADSTS700016: Application with identifier '' was not found in the directory ''. The wrong application (public or confidential) is being used with this authentication flow. Make sure to follow these steps in order to grant all the required permissions in your Azure AD. This article covers the most common errors related to Graph API connectivity.Ĭode: Authorization_RequestDenied Message: Insufficient privileges to complete the operation.ĬodeTwo Exchange Migration doesn't have the necessary permissions to perform that operation.

Microsoft exchange connectivity test