Error in getting the final CSID (not authorized)

Clearance and Reporting
1

When I try to get the final CSID after I submitted the three invoices successfully I get an error saying You are not authorized to use this api endpoint
what should I pass to the api beside the Request ID
Thanks in advance
API link:
https://gw-fatoora.zatca.gov.sa/e-invoicing/simulation/production/csids
Error:
You are not authorized to use this api endpoint
{StatusCode: 401, ReasonPhrase: ‘Unauthorized’, Version: 1.1, Content:

2

Dear @Ibrahime

Thanks for reaching out, Welcome to our community.

To provide comprehensive support as usual, Can I kindly ask you to provide the following:

  1. What are the exact steps you followed from the CSR generation?
  2. What are the APIs that you are hitting?
  3. Providing screenshots will help us in our investigation to ensure providing the needed help.

Thanks,
Ibrahem Daoud.

3

here is the API link:
https://gw-fatoora.zatca.gov.sa/e-invoicing/simulation/production/csids
Here is how to call it from C#

            HttpClient client = new HttpClient();
            HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, apiUrl);
            request.Headers.Add("accept", "application/json");
            request.Headers.Add("Authorization", "Basic aWJyYWhpbWUyMDAwQGdtYWlsLmNvbTpJZmVrcmFTb2Z0QDA=");
            request.Headers.Add("Accept-Version", "V2");
            request.Content = new StringContent("{\n  \"compliance_request_id\": \"" + RequestID + "\"\n}");
            request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");

            HttpResponseMessage response = await client.SendAsync(request);
            string responseBody = await response.Content.ReadAsStringAsync();
4

Check your Authorization Header, this should from CCSIDBinarySecurityToken:CCSID Secret

_httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.ASCII.GetBytes($"{CCSIDBinaryToken}:{CCSIDSecret}")));