httpclient PostAsync returns status 200 ok, but in response received as “requested url rejected”. Getting the data successfully in Postman

httpclient PostAsync returns status 200 ok, but in response received as requested url rejected.

Note: I am able to get the data successfully when tested with Postman

code

var httpClient = new HttpClient();

httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);

//stringDetails is a Class object containing fields

var stringDetails = JsonConvert.SerializeObject(stringDetails);
var httpContent = new StringContent(stringDetails, Encoding.UTF8, "application/json");
var httpResponse = await httpClient.PostAsync(webApiUrl, httpContent);
var responseContent = await httpResponse.Content.ReadAsStringAsync();

I am adding the code screenshot below for your reference.

Received response in Postman