Exception while trying to execute AsyncOperationId: The request failed with HTTP status 401: Unauthorized.

This error message appears when you are trying to import a file but something is going wrong. There are multiple reasons for this error message to show up. Some reasons which I found on the web include:- See if the account that your Asynchronous Service runs under can authenticate with your SQL Server Service. - If you're using multiple servers, look at something called a Service Principal Name