API is not accessible for application

I have generated token using code

string authorityUriToken = "https://login.microsoftonline.com/{tenantid}";
AuthenticationContext authContextToken = new AuthenticationContext(authorityUriToken);

AuthenticationResult token = authContextToken.AcquireTokenAsync(resourceUri,client).Result;

Using that token get dahsboard list with embdede url

System.Net.WebRequest request = System.Net.WebRequest.Create(String.Format("{0}groups/{1}/dashboards", baseUri, _objPowerBIWorkspace.WorkspaceID)) as System.Net.HttpWebRequest;

request.Method = "GET";
request.ContentLength = 0;ViewBag.Token = Token;
request.Headers.Add("Authorization", String.Format("Bearer {0}", Token));var response = request.GetResponse() as System.Net.HttpWebResponse;

But when i have try to get see dashboard reports it return error

When check in network calls, found below url with 403 status code

Request Call

https://wabi-west-europe-d-primary-redirect.analysis.windows.net/metadata/embed/dashboard/491ced24-19eb-4e46-9737-ee4483c1cddf

Resposne

{"Message":"API is not accessible for application"}

API access already given

Please help