diff --git a/csharp/src/Blockchain.Common/Logging/LoggingExtensions.cs b/csharp/src/Blockchain.Common/Logging/LoggingExtensions.cs
new file mode 100644
index 00000000..4913993a
--- /dev/null
+++ b/csharp/src/Blockchain.Common/Logging/LoggingExtensions.cs
@@ -0,0 +1,27 @@
+using Microsoft.Extensions.Logging;
+
+namespace Train.Solver.Blockchain.Common;
+
+/// <summary>
+///     Logs a structured message using the compile-time source generator for high-performance logging.
+/// </summary>
+/// <remarks>
+/// VS might show build error, since source generator works compile-time.
+/// See: https://learn.microsoft.com/en-us/dotnet/core/extensions/logger-message-generator
+/// </remarks>
+public static partial class TemporalLoggingExtensions
+{
+    [LoggerMessage(
+        Level = LogLevel.Information,
+        Message = "Event listener: `{eventListenerId}` was not running. Started.")]
+    public static partial void EventListeningStarted(
+        this ILogger logger, 
+        string eventListenerId);
+
+    [LoggerMessage(
+        Level = LogLevel.Information,
+        Message = "Event listener: `{eventListenerId}` should be terminated. Terminated.")]
+    public static partial void EventListeningTerminated(
+        this ILogger logger,
+        string eventListenerId);
+}
diff --git a/csharp/src/Blockchain.Swap/Workflows/EventListenerUpdaterWorkflow.cs b/csharp/src/Blockchain.Swap/Workflows/EventListenerUpdaterWorkflow.cs
index dd1ed236..efe950bd 100644
--- a/csharp/src/Blockchain.Swap/Workflows/EventListenerUpdaterWorkflow.cs
+++ b/csharp/src/Blockchain.Swap/Workflows/EventListenerUpdaterWorkflow.cs
@@ -28,7 +28,9 @@ public async Task RunAsync()
 
         foreach (var network in activeNetworks)
         {
-            if (!activeEventListenerWorkflowIds.Any(x => x == TemporalHelper.BuildEventListenerId(network.Name)))
+            var eventListnerId = TemporalHelper.BuildEventListenerId(network.Name);
+
+            if (!activeEventListenerWorkflowIds.Any(x => x == eventListnerId))
             {
                 await ExecuteActivityAsync(
                     (WorkflowActivities x) => x.RunEventListeningWorkflowAsync(
@@ -37,19 +39,22 @@ await ExecuteActivityAsync(
                         _blockBachSize,
                         _waitIntervalInSeconds),
                     TemporalHelper.DefaultActivityOptions(Constants.CoreTaskQueue));
+
+                Logger.EventListeningStarted(eventListnerId);
             }
         }
 
         var mustBeStoppedEventListenersIds = activeEventListenerWorkflowIds
-            .Where(workflowId =>
-                !activeNetworks.Any(x => workflowId == TemporalHelper.BuildEventListenerId(x.Name)))
-            .ToList();
+            .Where(workflowId => !activeNetworks.Any(
+                x => workflowId == TemporalHelper.BuildEventListenerId(x.Name)));
 
         foreach (var eventListenerId in mustBeStoppedEventListenersIds)
         {
             await ExecuteActivityAsync(
                 (IWorkflowActivities x) => x.TerminateWorkflowAsync(eventListenerId),
                 TemporalHelper.DefaultActivityOptions(Constants.CoreTaskQueue));
+
+            Logger.EventListeningTerminated(eventListenerId);
         }
     }
 }
diff --git a/csharp/src/Infrastructure.Logging.OpenTelemetry/TrainSolverBuilderExtensions.cs b/csharp/src/Infrastructure.Logging.OpenTelemetry/TrainSolverBuilderExtensions.cs
index f0dcec47..bf02fec4 100644
--- a/csharp/src/Infrastructure.Logging.OpenTelemetry/TrainSolverBuilderExtensions.cs
+++ b/csharp/src/Infrastructure.Logging.OpenTelemetry/TrainSolverBuilderExtensions.cs
@@ -49,6 +49,7 @@ public static TrainSolverBuilder WithOpenTelemetryLogging(
                 .ClearProviders()
                 .AddFilter("Microsoft", LogLevel.None)
                 .AddFilter("System", LogLevel.None)
+                .AddFilter("Azure", LogLevel.None)
                 .AddOpenTelemetry(logging =>
                 {
                     logging.AddOtlpExporter();