Provisioning Genesys Cloud User Groups and Team Memberships via the SCIM 2.0 API Using C#

What You Will Build

• A C# console application that creates Genesys Cloud teams and assigns users to them using the SCIM 2.0 API.
• This implementation uses the Genesys Cloud REST API directly through HttpClient with Polly for resilience and a custom DelegatingHandler for audit logging.
• The tutorial covers C# 10+ running on .NET 6 or .NET 8.

Prerequisites

• OAuth 2.0 Client Credentials application registered in Genesys Cloud Admin Console with the following scopes: scim:group:write, scim:user:write, scim:group:read, scim:user:read
• Genesys Cloud SCIM 2.0 API (v2)
• .NET 6 or .NET 8 SDK
• NuGet packages: Polly, Polly.Extensions.Http, System.Text.Json, Microsoft.Extensions.Http, Microsoft.Extensions.Caching.Memory

Authentication Setup

Genesys Cloud uses OAuth 2.0 Client Credentials flow for server-to-server integrations. You must exchange your client credentials for an access token before making SCIM calls. Token caching prevents unnecessary authentication requests and respects API rate limits.

using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;
using Microsoft.Extensions.Caching.Memory;

public class GenesysAuthService
{
    private readonly string _clientId;
    private readonly string _clientSecret;
    private readonly string _env;
    private readonly HttpClient _httpClient;
    private readonly IMemoryCache _cache;
    private readonly string _cacheKey = "genesys_access_token";

    public GenesysAuthService(string clientId, string clientSecret, string env, HttpClient httpClient, IMemoryCache cache)
    {
        _clientId = clientId;
        _clientSecret = clientSecret;
        _env = env;
        _httpClient = httpClient;
        _cache = cache;
    }

    public async Task<string> GetAccessTokenAsync()
    {
        if (_cache.TryGetValue(_cacheKey, out string cachedToken))
        {
            return cachedToken;
        }

        var tokenEndpoint = $"https://{_env}.mypurecloud.com/oauth/token";
        var content = new FormUrlEncodedContent(new[]
        {
            new KeyValuePair<string, string>("grant_type", "client_credentials"),
            new KeyValuePair<string, string>("client_id", _clientId),
            new KeyValuePair<string, string>("client_secret", _clientSecret),
            new KeyValuePair<string, string>("scope", "scim:group:write scim:user:write scim:group:read scim:user:read")
        });

        var response = await _httpClient.PostAsync(tokenEndpoint, content);
        response.EnsureSuccessStatusCode();

        var json = await response.Content.ReadAsStringAsync();
        var options = new JsonSerializerOptions { PropertyNameCaseInsensitive = true };
        var tokenResponse = JsonSerializer.Deserialize<TokenResponse>(json, options);

        _cache.Set(_cacheKey, tokenResponse.AccessToken, TimeSpan.FromMinutes(55));
        return tokenResponse.AccessToken;
    }

    public class TokenResponse
    {
        public string AccessToken { get; set; }
        public string TokenType { get; set; }
        public int ExpiresIn { get; set; }
    }
}

The GetAccessTokenAsync method caches the token for 55 minutes. Genesys tokens expire after 60 minutes. This offset prevents edge-case expiration during active requests. You must handle HttpRequestException or 401 responses in production by invalidating the cache and retrying authentication.

Implementation

Step 1: Configure the HTTP Client with Retry Policies and Audit Middleware

Production integrations require resilience against transient failures and rate limits. Genesys Cloud returns 429 Too Many Requests when you exceed your tenant’s API quota. The following configuration uses Polly to implement exponential backoff for 429 and 5xx responses. A custom DelegatingHandler captures request and response details for audit compliance.

using System;
using System.Diagnostics;
using System.Net.Http;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using Polly;
using Polly.Extensions.Http;

public class AuditLoggingHandler : DelegatingHandler
{
    private readonly JsonSerializerOptions _jsonOptions = new() { WriteIndented = true };

    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        var sw = Stopwatch.StartNew();
        var auditEntry = new
        {
            Timestamp = DateTime.UtcNow,
            Method = request.Method.Method,
            Url = request.RequestUri?.ToString(),
            ContentType = request.Content?.Headers.ContentType?.MediaType,
            RequestBody = request.Content != null ? await request.Content.ReadAsStringAsync() : null,
            Headers = request.Headers.ToDictionary(h => h.Key, h => string.Join(", ", h.Value))
        };

        Console.WriteLine($"[AUDIT REQUEST] {JsonSerializer.Serialize(auditEntry, _jsonOptions)}");

        try
        {
            var response = await base.SendAsync(request, cancellationToken);
            sw.Stop();

            var responseAudit = new
            {
                Timestamp = DateTime.UtcNow,
                Status = response.StatusCode,
                DurationMs = sw.ElapsedMilliseconds,
                ResponseHeaders = response.Headers.ToDictionary(h => h.Key, h => string.Join(", ", h.Value))
            };

            Console.WriteLine($"[AUDIT RESPONSE] {JsonSerializer.Serialize(responseAudit, _jsonOptions)}");
            return response;
        }
        catch (Exception ex)
        {
            sw.Stop();
            Console.WriteLine($"[AUDIT ERROR] {ex.Message} after {sw.ElapsedMilliseconds}ms");
            throw;
        }
    }
}

public static class HttpClientFactoryExtensions
{
    public static IHttpClientBuilder AddGenesysResilience(this IHttpClientBuilder builder)
    {
        builder.AddHttpMessageHandler<AuditLoggingHandler>();

        builder.AddPolicyHandler(HttpPolicyExtensions
            .HandleTransientHttpError()
            .OrResult(msg => msg.StatusCode == System.Net.HttpStatusCode.TooManyRequests)
            .WaitAndRetryAsync(3, retryAttempt =>
            {
                var delay = TimeSpan.FromSeconds(Math.Pow(2, retryAttempt));
                Console.WriteLine($"[RETRY] Attempt {retryAttempt + 1} in {delay.TotalSeconds}s");
                return delay;
            }));

        return builder;
    }
}

The AuditLoggingHandler intercepts every request before it reaches the network layer. It serializes the method, URL, content type, and payload to the console. In production, replace Console.WriteLine with a structured logger like Serilog or NLog. The Polly policy handles standard transient HTTP errors plus explicit 429 responses. The exponential backoff aligns with Genesys Cloud’s rate limit recovery window.

Step 2: Provision a SCIM Group (Team)

Genesys Cloud maps SCIM groups to Teams. You create a team by sending a POST request to /api/v2/scim/v2/Groups. The payload must include the urn:ietf:params:scim:schemas:core:2.0:Group schema identifier.

HTTP Request Example:

POST /api/v2/scim/v2/Groups HTTP/1.1
Host: api.mypurecloud.com
Authorization: Bearer <access_token>
Content-Type: application/scim+json
Accept: application/json

{
  "schemas": ["urn:ietf:params:scim:schemas:core:2.0:Group"],
  "displayName": "Tier 2 Support Team",
  "members": []
}

C# Implementation:

using System;
using System.Net.Http;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

public class ScimGroupService
{
    private readonly HttpClient _httpClient;
    private readonly string _env;
    private readonly JsonSerializerOptions _jsonOptions = new() { PropertyNameCaseInsensitive = true };

    public ScimGroupService(HttpClient httpClient, string env)
    {
        _httpClient = httpClient;
        _env = env;
    }

    public async Task<string> CreateGroupAsync(string displayName, string accessToken)
    {
        var endpoint = $"https://{_env}.mypurecloud.com/api/v2/scim/v2/Groups";
        
        var payload = new
        {
            schemas = new[] { "urn:ietf:params:scim:schemas:core:2.0:Group" },
            displayName = displayName,
            members = Array.Empty<object>()
        };

        var jsonPayload = JsonSerializer.Serialize(payload);
        var content = new StringContent(jsonPayload, Encoding.UTF8, "application/scim+json");

        _httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);
        _httpClient.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));

        var response = await _httpClient.PostAsync(endpoint, content);

        if (response.StatusCode == System.Net.HttpStatusCode.Conflict)
        {
            var errorBody = await response.Content.ReadAsStringAsync();
            throw new InvalidOperationException($"Group already exists. SCIM Error: {errorBody}");
        }

        response.EnsureSuccessStatusCode();

        var responseBody = await response.Content.ReadAsStringAsync();
        var result = JsonSerializer.Deserialize<ScimGroupResponse>(responseBody, _jsonOptions);
        
        Console.WriteLine($"[SUCCESS] Created Group: {result.Id} ({result.DisplayName})");
        return result.Id;
    }

    public class ScimGroupResponse
    {
        public string Id { get; set; }
        public string DisplayName { get; set; }
        public string[] Schemas { get; set; }
    }
}

The Content-Type header must be exactly application/scim+json. Genesys Cloud rejects SCIM requests with standard application/json. The method returns the SCIM group identifier, which you will use in the next step to assign members. A 409 Conflict response indicates the team name already exists in your tenant. You must handle this explicitly because EnsureSuccessStatusCode throws a generic exception.

Step 3: Assign Members to the Group via SCIM PATCH

You add users to a team using the SCIM 2.0 PATCH operation. Genesys Cloud requires the Operations array with an add operation targeting the members path. The member value must contain the user’s SCIM identifier, not the internal Genesys UUID.

HTTP Request Example:

PATCH /api/v2/scim/v2/Groups/abc-123-group-id HTTP/1.1
Host: api.mypurecloud.com
Authorization: Bearer <access_token>
Content-Type: application/scim+json
Accept: application/json

{
  "Operations": [
    {
      "op": "add",
      "path": "members",
      "value": [
        {
          "value": "user-scim-id-xyz",
          "display": "Jane Smith"
        }
      ]
    }
  ]
}

C# Implementation:

using System;
using System.Net.Http;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

public class ScimMembershipService
{
    private readonly HttpClient _httpClient;
    private readonly string _env;
    private readonly JsonSerializerOptions _jsonOptions = new() { PropertyNameCaseInsensitive = true };

    public ScimMembershipService(HttpClient httpClient, string env)
    {
        _httpClient = httpClient;
        _env = env;
    }

    public async Task AddMemberToGroupAsync(string groupId, string userScimId, string userDisplayName, string accessToken)
    {
        var endpoint = $"https://{_env}.mypurecloud.com/api/v2/scim/v2/Groups/{groupId}";

        var payload = new
        {
            Operations = new[]
            {
                new
                {
                    op = "add",
                    path = "members",
                    value = new[]
                    {
                        new
                        {
                            value = userScimId,
                            display = userDisplayName
                        }
                    }
                }
            }
        };

        var jsonPayload = JsonSerializer.Serialize(payload);
        var content = new StringContent(jsonPayload, Encoding.UTF8, "application/scim+json");

        _httpClient.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);
        _httpClient.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));

        var request = new HttpRequestMessage(HttpMethod.Patch, endpoint)
        {
            Content = content
        };

        var response = await _httpClient.SendAsync(request);

        if (response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
        {
            throw new InvalidOperationException("Token expired or invalid. Refresh authentication and retry.");
        }

        if (response.StatusCode == System.Net.HttpStatusCode.Forbidden)
        {
            throw new InvalidOperationException("Missing scim:group:write scope. Verify OAuth client permissions.");
        }

        if (response.StatusCode == System.Net.HttpStatusCode.NotFound)
        {
            throw new InvalidOperationException($"Group ID {groupId} does not exist in this tenant.");
        }

        response.EnsureSuccessStatusCode();

        var responseBody = await response.Content.ReadAsStringAsync();
        Console.WriteLine($"[SUCCESS] Added member {userScimId} to group {groupId}");
    }
}

The PATCH method requires explicit HttpRequestMessage construction because HttpClient does not expose a direct PatchAsync method in the base class. The payload structure matches the SCIM 2.0 Bulk/Patch specification. Genesys Cloud validates the value field against existing SCIM user identifiers. If you pass an internal Genesys UUID instead of the SCIM ID, the API returns 400 Bad Request with a schema validation error. Always use the id field returned from /api/v2/scim/v2/Users.

Complete Working Example

The following console application wires together authentication, retry policies, audit middleware, and SCIM provisioning. Replace the placeholder credentials with your Genesys Cloud OAuth client configuration.

using System;
using System.Threading.Tasks;
using Microsoft.Extensions.Caching.Memory;
using Microsoft.Extensions.DependencyInjection;

class Program
{
    static async Task Main(string[] args)
    {
        var services = new ServiceCollection();
        services.AddMemoryCache();
        services.AddHttpClient("GenesysScim", client =>
        {
            client.Timeout = TimeSpan.FromSeconds(30);
        }).AddGenesysResilience();

        var provider = services.BuildServiceProvider();
        var httpClient = provider.GetRequiredService<IHttpClientFactory>().CreateClient("GenesysScim");
        var cache = provider.GetRequiredService<IMemoryCache>();

        var clientId = "YOUR_CLIENT_ID";
        var clientSecret = "YOUR_CLIENT_SECRET";
        var env = "api"; // Use your environment subdomain

        var authService = new GenesysAuthService(clientId, clientSecret, env, httpClient, cache);
        var groupService = new ScimGroupService(httpClient, env);
        var membershipService = new ScimMembershipService(httpClient, env);

        try
        {
            Console.WriteLine("[START] Provisioning workflow initiated");
            
            var token = await authService.GetAccessTokenAsync();
            
            var groupId = await groupService.CreateGroupAsync("Developer Integration Team", token);
            
            await membershipService.AddMemberToGroupAsync(
                groupId, 
                "scim-user-12345", 
                "Alex Developer", 
                token
            );

            Console.WriteLine("[COMPLETE] Workflow finished successfully");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"[FAILURE] {ex.Message}");
            if (ex.InnerException != null)
            {
                Console.WriteLine($"[INNER] {ex.InnerException.Message}");
            }
        }
    }
}

This example uses IHttpClientFactory to manage the lifecycle of the HTTP client and Polly policies. The AddGenesysResilience extension attaches the audit handler and retry logic automatically. The workflow authenticates, creates a group, and assigns a user in sequence. You can extend this pattern to process bulk CSV files or integrate with Azure AD Connect for automated provisioning.

Common Errors & Debugging

Error: 401 Unauthorized

• What causes it: The access token has expired, the client credentials are invalid, or the token was not attached to the request headers.
• How to fix it: Invalidate the cached token and call GetAccessTokenAsync again. Verify that your OAuth client has the scim:group:write and scim:user:write scopes enabled in the Genesys Admin Console.
• Code showing the fix: Implement a retry wrapper around your SCIM calls that catches 401, clears _cache.Remove(_cacheKey), re-authenticates, and retries the original request once.

Error: 403 Forbidden

• What causes it: The OAuth token lacks the required SCIM scopes, or the client credentials application does not have the necessary permission set assigned in Genesys Cloud.
• How to fix it: Navigate to the Genesys Admin Console, locate your OAuth client, and ensure the SCIM: Group: Write and SCIM: User: Write permissions are checked. Regenerate the token after scope changes.
• Code showing the fix: Check response.StatusCode == System.Net.HttpStatusCode.Forbidden before calling EnsureSuccessStatusCode. Throw a descriptive exception that directs the operator to verify OAuth client permissions.

Error: 429 Too Many Requests

• What causes it: Your tenant has exceeded the Genesys Cloud API rate limit for the current time window.
• How to fix it: The Polly retry policy handles this automatically with exponential backoff. If the error persists after three retries, implement a circuit breaker pattern to stop sending requests until the rate limit window resets.
• Code showing the fix: Extend the Polly policy with OrResult(msg => msg.StatusCode == System.Net.HttpStatusCode.TooManyRequests) as shown in Step 1. Monitor the Retry-After header in the response payload to adjust backoff intervals dynamically.

Error: 400 Bad Request (SCIM Schema Validation)

• What causes it: The JSON payload contains incorrect schema identifiers, missing required fields, or uses application/json instead of application/scim+json.
• How to fix it: Validate the schemas array matches urn:ietf:params:scim:schemas:core:2.0:Group. Ensure the Content-Type header is exactly application/scim+json. Verify that member value fields contain SCIM user IDs, not internal Genesys UUIDs.
• Code showing the fix: Parse the 400 response body to extract the SCIM error code. Log the exact payload sent to the API. Compare it against the RFC 7643 and Genesys Cloud SCIM specification.

Official References

• Genesys Cloud SCIM 2.0 API Documentation
• OAuth 2.0 Client Credentials Flow
• Polly Resilience and Transient Fault Handling
• SCIM 2.0 RFC 7643 and RFC 7644