Suppressing Genesys Cloud Client SDK Notifications with C#

What You Will Build

• Build a C# service that programmatically suppresses Genesys Cloud notification categories for a defined duration while preserving critical alerts.
• Use the official Genesys Cloud .NET SDK to push atomic preference updates, manage async expiry, and enforce validation pipelines.
• Cover C# 10+ with modern async/await, structured retry logic, webhook callbacks, latency tracking, and audit logging.

Prerequisites

• OAuth 2.0 client credentials with notifications:write and user:read scopes.
• Genesys Cloud .NET SDK v11.0+ (genesyscloud NuGet package).
• .NET 7 or later runtime.
• External dependencies: genesyscloud, Newtonsoft.Json, System.Text.Json, Serilog (for audit logs), Polly (for retry policies).

Authentication Setup

The Genesys Cloud .NET SDK handles token acquisition and automatic refresh when you configure the OAuthClient with client credentials. You must attach the configuration object to the platform client so all subsequent API calls inherit the bearer token.

using GenesysCloud.Configuration;
using GenesysCloud.Auth;
using GenesysCloud.PlatformClientV2;

var config = Configuration.Builder()
    .ClientId("your-client-id")
    .ClientSecret("your-client-secret")
    .BaseUrl("https://api.mypurecloud.com")
    .Build();

var oauthClient = new OAuthClient(config);
oauthClient.SetScopes(new List<string> { "notifications:write", "user:read" });
await oauthClient.Authorize();

var platformClient = new PureCloudPlatformClientV2(config);

The Authorize() call executes a POST to /oauth/token. The SDK caches the access token and automatically requests a new token when the current one expires. You do not need to implement manual refresh logic unless you are building a long-running daemon that outlives the default SDK cache.

Implementation

Step 1: Constructing and Validating Suppress Payloads

Genesys Cloud notification preferences are stored as a dictionary mapping notification category keys to preference objects. The SDK exposes this through UsersApi.PutUserNotificationPreferences. You must construct a payload that defines category references, duration windows, and priority exceptions. The validation pipeline checks maximum duration limits, category overlaps, and critical alert preservation before submission.

using System;
using System.Collections.Generic;
using System.Linq;
using GenesysCloud.Models;

public record SuppressPayload(
    string UserId,
    Dictionary<string, NotificationPreference> Categories,
    TimeSpan Duration,
    List<string> PriorityExceptions
);

public class SuppressValidator
{
    private static readonly TimeSpan MaxDuration = TimeSpan.FromHours(24);
    private static readonly HashSet<string> CriticalCategories = new()
    {
        "routing:agentstatus",
        "routing:interaction",
        "routing:task",
        "routing:queue"
    };

    public void Validate(SuppressPayload payload)
    {
        if (payload.Duration > MaxDuration)
            throw new ArgumentException($"Duration exceeds maximum suppression limit of {MaxDuration.TotalHours} hours.");

        var overlapping = payload.Categories.Keys
            .GroupBy(k => k)
            .Where(g => g.Count() > 1)
            .Select(g => g.Key)
            .ToList();

        if (overlapping.Count > 0)
            throw new ArgumentException($"Category overlap detected: {string.Join(", ", overlapping)}");

        foreach (var exception in payload.PriorityExceptions)
        {
            if (CriticalCategories.Contains(exception))
                throw new ArgumentException($"Cannot suppress critical alert category: {exception}");
        }

        foreach (var kvp in payload.Categories)
        {
            if (kvp.Value == null || kvp.Value.Enabled == null)
                throw new ArgumentException($"Invalid preference format for category: {kvp.Key}");
        }
    }
}

Required OAuth scope: notifications:write. The validation ensures you never block routing or interaction alerts that require immediate agent attention. It also enforces the 24-hour engine constraint to prevent indefinite suppression states.

Step 2: Atomic Configuration Updates with Retry and Expiry

The preferences endpoint performs a full replacement. You must fetch the current configuration, merge the suppress categories, and push the updated object. This guarantees atomicity. You must also implement retry logic for 429 Too Many Requests responses, which occur when the notification preference service throttles rapid updates.

using System;
using System.Collections.Generic;
using System.Net;
using System.Threading.Tasks;
using GenesysCloud.Api;
using GenesysCloud.Models;
using Polly;

public class NotificationSuppressor
{
    private readonly UsersApi _usersApi;
    private readonly SuppressValidator _validator;
    private readonly HttpClient _webhookClient;

    public NotificationSuppressor(PureCloudPlatformClientV2 platformClient, HttpClient webhookClient)
    {
        _usersApi = platformClient.Users;
        _validator = new SuppressValidator();
        _webhookClient = webhookClient;
    }

    public async Task ApplySuppressionAsync(SuppressPayload payload)
    {
        _validator.Validate(payload);

        var existingResponse = await RetryPolicy.ExecuteAsync(() => 
            _usersApi.GetUserNotificationPreferences(payload.UserId));

        var mergedPreferences = new Dictionary<string, NotificationPreference>(existingResponse.Payload);
        
        foreach (var kvp in payload.Categories)
        {
            mergedPreferences[kvp.Key] = new NotificationPreference
            {
                Enabled = false,
                Priority = kvp.Value.Priority
            };
        }

        var updateRequest = new PutUserNotificationPreferencesRequest
        {
            Preferences = mergedPreferences
        };

        var updateResponse = await RetryPolicy.ExecuteAsync(() => 
            _usersApi.PutUserNotificationPreferences(payload.UserId, updateRequest));

        if (updateResponse.StatusCode != HttpStatusCode.OK)
            throw new InvalidOperationException($"Failed to update preferences. Status: {updateResponse.StatusCode}");

        ScheduleExpiry(payload, existingResponse.Payload);
    }

    private static AsyncRetryPolicy RetryPolicy => Policy
        .HandleResult<ApiResponse<Dictionary<string, NotificationPreference>>>(r => r.StatusCode == HttpStatusCode.TooManyRequests)
        .WaitAndRetryAsync(3, retryAttempt => TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)));

    private void ScheduleExpiry(SuppressPayload payload, Dictionary<string, NotificationPreference> originalPreferences)
    {
        var expiryTask = Task.Delay(payload.Duration).ContinueWith(async _ =>
        {
            await RestorePreferencesAsync(payload.UserId, originalPreferences);
            await SendWebhookAsync(payload, "expiry", true);
        }, TaskCreationOptions.Detached);
    }

    private async Task RestorePreferencesAsync(string userId, Dictionary<string, NotificationPreference> originalPreferences)
    {
        var request = new PutUserNotificationPreferencesRequest { Preferences = originalPreferences };
        await RetryPolicy.ExecuteAsync(() => _usersApi.PutUserNotificationPreferences(userId, request));
    }
}

Required OAuth scope: notifications:write. The RetryPolicy handles 429 responses with exponential backoff. The ScheduleExpiry method uses a detached task to automatically revert preferences when the duration window closes.

Step 3: Webhook Synchronization, Latency Tracking, and Audit Logging

You must track suppression latency, success rates, and generate audit logs for interface governance. The webhook callback synchronizes the suppression state with external settings services.

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

public class SuppressionMetrics
{
    public long TotalRequests { get; set; }
    public long SuccessfulSuppressions { get; set; }
    public double AverageLatencyMs { get; set; }
}

public partial class NotificationSuppressor
{
    private readonly SuppressionMetrics _metrics = new();
    private readonly JsonSerializerOptions _jsonOptions = new() { PropertyNamingPolicy = JsonNamingPolicy.CamelCase };

    public async Task ApplySuppressionTrackedAsync(SuppressPayload payload)
    {
        var stopwatch = Stopwatch.StartNew();
        bool success = false;

        try
        {
            await ApplySuppressionAsync(payload);
            success = true;
        }
        catch (Exception ex)
        {
            Log.Error(ex, "Suppression failed for user {UserId}", payload.UserId);
        }
        finally
        {
            stopwatch.Stop();
            _metrics.TotalRequests++;
            if (success)
            {
                _metrics.SuccessfulSuppressions++;
                _metrics.AverageLatencyMs = (_metrics.AverageLatencyMs * (_metrics.TotalRequests - 1) + stopwatch.ElapsedMilliseconds) / _metrics.TotalRequests;
            }

            await SendWebhookAsync(payload, success ? "applied" : "failed", success);
            LogAuditEntry(payload, success, stopwatch.ElapsedMilliseconds);
        }
    }

    private async Task SendWebhookAsync(SuppressPayload payload, string eventType, bool success)
    {
        var webhookPayload = new
        {
            eventType,
            userId = payload.UserId,
            categories = payload.Categories.Keys,
            durationSeconds = payload.Duration.TotalSeconds,
            success,
            timestamp = DateTime.UtcNow.ToString("o")
        };

        try
        {
            await _webhookClient.PostAsJsonAsync("https://your-sync-service.com/api/suppressions", webhookPayload, _jsonOptions);
        }
        catch (Exception ex)
        {
            Log.Warning(ex, "Webhook delivery failed for event {EventType}", eventType);
        }
    }

    private void LogAuditEntry(SuppressPayload payload, bool success, long latencyMs)
    {
        Log.Information(
            "Suppression {Status} | User: {UserId} | Categories: {Categories} | Duration: {Duration}s | Latency: {Latency}ms",
            success ? "SUCCESS" : "FAILED",
            payload.UserId,
            string.Join(",", payload.Categories.Keys),
            payload.Duration.TotalSeconds,
            latencyMs
        );
    }
}

Required OAuth scope: None for webhooks or logging. The metrics object calculates real-time latency and success rates. Serilog structures the audit logs for downstream parsing. The webhook payload uses camelCase serialization to match standard REST conventions.

Complete Working Example

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
using GenesysCloud.Configuration;
using GenesysCloud.Auth;
using GenesysCloud.PlatformClientV2;
using GenesysCloud.Models;
using Serilog;

class Program
{
    static async Task Main(string[] args)
    {
        Log.Logger = new LoggerConfiguration()
            .WriteTo.Console()
            .CreateLogger();

        var config = Configuration.Builder()
            .ClientId("your-client-id")
            .ClientSecret("your-client-secret")
            .BaseUrl("https://api.mypurecloud.com")
            .Build();

        var oauthClient = new OAuthClient(config);
        oauthClient.SetScopes(new List<string> { "notifications:write", "user:read" });
        await oauthClient.Authorize();

        var platformClient = new PureCloudPlatformClientV2(config);
        var webhookClient = new HttpClient();
        webhookClient.BaseAddress = new Uri("https://your-sync-service.com/api/");

        var suppressor = new NotificationSuppressor(platformClient, webhookClient);

        var payload = new SuppressPayload(
            UserId: "12345678-1234-1234-1234-123456789012",
            Categories: new Dictionary<string, NotificationPreference>
            {
                { "messaging:conversation", new NotificationPreference { Enabled = false, Priority = 1 } },
                { "voice:call", new NotificationPreference { Enabled = false, Priority = 2 } }
            },
            Duration: TimeSpan.FromMinutes(30),
            PriorityExceptions: new List<string>()
        );

        try
        {
            await suppressor.ApplySuppressionTrackedAsync(payload);
            Console.WriteLine("Suppression applied and tracked successfully.");
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Suppression failed: {ex.Message}");
        }

        // Keep console open for async expiry task
        Console.ReadLine();
    }
}

Common Errors & Debugging

Error: 401 Unauthorized

• Cause: The OAuth token expired or the client credentials are invalid. The SDK cache may have been cleared or the token was revoked.
• Fix: Call oauthClient.Authorize() again before executing the suppressor. Ensure the client ID and secret match the credentials registered in the Genesys Cloud developer portal.
• Code: The SDK automatically retries token acquisition on the first failed API call. If it persists, verify the BaseUrl matches your organization region.

Error: 403 Forbidden

• Cause: The OAuth client lacks the notifications:write scope, or the target user ID belongs to a different organization.
• Fix: Add notifications:write to the SetScopes call. Verify the UserId matches an active user in the authenticated environment.
• Code: Check the ApiResponse.StatusCode and ApiResponse.Body for scope violation details. Log the exact scope list before authorization.

Error: 429 Too Many Requests

• Cause: The notification preference service enforces rate limits per user or per organization. Rapid suppression iterations trigger throttling.
• Fix: The provided RetryPolicy handles exponential backoff. If failures persist, increase the delay multiplier or implement a queue-based scheduler to space out requests.
• Code: Monitor the RetryPolicy execution count. Add a jitter value to prevent thundering herd scenarios across multiple suppressor instances.

Official References

• Notification Preferences API Documentation
• Genesys Cloud .NET SDK Reference