diff --git a/GWMS.UI/Data/GWMSDataService.cs b/GWMS.UI/Data/GWMSDataService.cs
index 7598234..c3e4a78 100644
--- a/GWMS.UI/Data/GWMSDataService.cs
+++ b/GWMS.UI/Data/GWMSDataService.cs
@@ -11,6 +11,7 @@ using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Logging;
 using Newtonsoft.Json;
 using NLog;
+using OpenTelemetry.Resources;
 using Org.BouncyCastle.Asn1.IsisMtt.Ocsp;
 using Org.BouncyCastle.Asn1.Pkcs;
 using StackExchange.Redis;
@@ -91,6 +92,9 @@ namespace GWMS.UI.Data
         public async Task<bool> addCheckTask4Machine(string idxMacchina, taskType taskKey, string taskVal)
         {
             bool answ = false;
+            using var activity = ActivitySource.StartActivity("addCheckTask4Machine");
+            activity?.SetTag("iob.code", idxMacchina);
+            activity?.SetTag("iob.task", $"{taskKey}");
             string currHash = exeTaskHash(idxMacchina);
             Log.Info($"addCheckTask4Machine idxMacchina: {idxMacchina} | taskKey: {taskKey} | taskVal: {taskVal}");
             try
@@ -109,13 +113,28 @@ namespace GWMS.UI.Data
                     string rawData = JsonConvert.SerializeObject(currTasks);
                     await redisDb.StringSetAsync(currHash, rawData);
                     answ = true;
-                    Log.Info($"Re-issued task4machine | idxMacchina: {idxMacchina} | taskKey: {taskKey} | savedVal: {savedVal}");
+                    string msg = $"Re-issued task4machine | idxMacchina: {idxMacchina} | taskKey: {taskKey} | savedVal: {savedVal}";
+                    Log.Info(msg);
+                    activity?.SetTag("iob.job_msg", msg);
                 }
             }
             catch (Exception exc)
             {
                 Log.Error($"Errore in addCheckTask4Machine | idxMacchina: {idxMacchina} | taskKey: {taskKey} | taskVal: {taskVal}{Environment.NewLine}{exc}");
+                // traccio errore
+                activity?.SetStatus(ActivityStatusCode.Error, exc.Message);
+                activity?.AddEvent(new ActivityEvent("exception", tags: new ActivityTagsCollection {
+                    { "exception.type", exc.GetType().Name },
+                    { "exception.message", exc.Message },
+                    { "exception.stacktrace", exc.StackTrace }
+                }));
+                //activity?.SetTag("exception.type", exc.GetType().Name);
+                //activity?.SetTag("exception.message", exc.Message);
+                //activity?.SetTag("exception.stacktrace", exc.StackTrace);
+                throw;
             }
+
+
             return answ;
         }
 
@@ -129,6 +148,9 @@ namespace GWMS.UI.Data
         public async Task<bool> addTask4Machine(string idxMacchina, taskType taskKey, string taskVal)
         {
             bool answ = false;
+            using var activity = ActivitySource.StartActivity("addCheckTask4Machine");
+            activity?.SetTag("iob.code", idxMacchina);
+            activity?.SetTag("iob.task", $"{taskKey}");
             string rawData = "";
             string currHash = exeTaskHash(idxMacchina);
             string currSavedParHash = savedTaskHash(idxMacchina);