diff --git a/alexa.dev.excuses/ExcuseResponse.cs b/alexa.dev.excuses/ExcuseResponse.cs
index 408288e..ef1cc82 100644
--- a/alexa.dev.excuses/ExcuseResponse.cs
+++ b/alexa.dev.excuses/ExcuseResponse.cs
@@ -7,6 +7,7 @@ using AlexaSkillsKit.Authentication;
 using AlexaSkillsKit.Json;
 using System.Threading.Tasks;
 using AlexaSkillsKit.UI;
+using System.Diagnostics;
 
 namespace alexa.dev.excuses
 {
@@ -24,6 +25,16 @@ namespace alexa.dev.excuses
 			return CompileResponse();
 		}
 
+		public override bool OnRequestValidation(SpeechletRequestValidationResult result, DateTime referenceTimeUtc, SpeechletRequestEnvelope requestEnvelope)
+		{
+			if(!string.IsNullOrWhiteSpace(requestEnvelope?.Session?.Application?.Id) && !requestEnvelope.Session.Application.Id.Equals("amzn1.ask.skill.2327a089-3c06-47f7-accb-4b627136b652"))
+			{
+				WebApiApplication.telemetry.TrackEvent("Request envelope does not contain the appid");
+				return false;
+			}
+			return base.OnRequestValidation(result, referenceTimeUtc, requestEnvelope);
+		}
+
 		public override void OnSessionEnded(SessionEndedRequest sessionEndedRequest, Session session)
 		{
 		}
diff --git a/alexa.dev.excuses/Global.asax.cs b/alexa.dev.excuses/Global.asax.cs
index b5ff418..dd6c9a3 100644
--- a/alexa.dev.excuses/Global.asax.cs
+++ b/alexa.dev.excuses/Global.asax.cs
@@ -1,4 +1,5 @@
-using System;
+using Microsoft.ApplicationInsights;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;
@@ -9,6 +10,7 @@ namespace alexa.dev.excuses
 {
 	public class WebApiApplication : System.Web.HttpApplication
 	{
+		public static TelemetryClient telemetry = new TelemetryClient() { InstrumentationKey = "69bdd5ac-c992-4daa-89c9-7af1dbd09249" };
 		protected void Application_Start()
 		{
 			GlobalConfiguration.Configure(WebApiConfig.Register);