https://community.fabric.microsoft.com/t5/Developer/HttpOperationException-Operation-returned-an-invalid-status-code/m-p/3240016#M42714 <P>Resolved after creating a New Workspace and Dataset. There were some issues with the Dataset due to which it returned a Bad Request</P> Wed, 17 May 2023 11:07:48 GMT bytesizetrainer 2023-05-17T11:07:48Z https://community.fabric.microsoft.com/t5/Developer/HttpOperationException-Operation-returned-an-invalid-status-code/m-p/3238337#M42700 <P>I have created a .NET Core MVC App, but not able to get it running. It returns the subject error.</P><P>&nbsp;</P><P><EM>Microsoft.PowerBI.Api.EmbedTokenOperations.GenerateTokenWithHttpMessagesAsync(GenerateTokenRequestV2 requestParameters, Dictionary&lt;string, List&lt;string&gt;&gt; customHeaders, CancellationToken cancellationToken)</EM></P><P>&nbsp;</P><P>In the Azure Logs, I am able to trace the connection request to the Application have happened successfully, but the Token Generation does not happen. What could I be missing?</P><P>&nbsp;</P><P>After viewing few blogs, I have added identity details before token generation to my Services -&gt; Service.cs file</P><P>&nbsp;</P><LI-CODE lang="csharp">var effectiveIdentities = new List&lt;EffectiveIdentity&gt;(); foreach (var dataset in datasets) { effectiveIdentities.Add(new EffectiveIdentity( username: "my_email_address", datasets: new List&lt;string&gt; { dataset.Id.ToString() } )); } // Bundle token requests for reports, datasets, and the workspace var tokenRequest = new GenerateTokenRequestV2( reports: reportTokenRequests, datasets: datasetTokenRequests, targetWorkspaces: workspaceRequests, identities: effectiveIdentities );</LI-CODE><P>&nbsp;</P> Tue, 16 May 2023 15:57:54 GMT https://community.fabric.microsoft.com/t5/Developer/HttpOperationException-Operation-returned-an-invalid-status-code/m-p/3238337#M42700 bytesizetrainer 2023-05-16T15:57:54Z https://community.fabric.microsoft.com/t5/Developer/HttpOperationException-Operation-returned-an-invalid-status-code/m-p/3238400#M42701 <P>Tried troubleshooting using Fiddle, but did not throw up any error. While troubleshooting through browser, it shows Internal Server Error : Error Code 500</P> Tue, 16 May 2023 16:22:26 GMT https://community.fabric.microsoft.com/t5/Developer/HttpOperationException-Operation-returned-an-invalid-status-code/m-p/3238400#M42701 bytesizetrainer 2023-05-16T16:22:26Z https://community.fabric.microsoft.com/t5/Developer/HttpOperationException-Operation-returned-an-invalid-status-code/m-p/3240016#M42714 <P>Resolved after creating a New Workspace and Dataset. There were some issues with the Dataset due to which it returned a Bad Request</P> Wed, 17 May 2023 11:07:48 GMT https://community.fabric.microsoft.com/t5/Developer/HttpOperationException-Operation-returned-an-invalid-status-code/m-p/3240016#M42714 bytesizetrainer 2023-05-17T11:07:48Z