diff --git a/src/Microsoft.Identity.Web.TokenAcquisition/IdHelper.cs b/src/Microsoft.Identity.Web.Diagnostics/IdHelper.cs
similarity index 80%
rename from src/Microsoft.Identity.Web.TokenAcquisition/IdHelper.cs
rename to src/Microsoft.Identity.Web.Diagnostics/IdHelper.cs
index b8601e59e..9b6426cd4 100644
--- a/src/Microsoft.Identity.Web.TokenAcquisition/IdHelper.cs
+++ b/src/Microsoft.Identity.Web.Diagnostics/IdHelper.cs
@@ -10,6 +10,8 @@ namespace Microsoft.Identity.Web
 {
     internal static class IdHelper
     {
+        private const string IDWebSku = "IDWeb.";
+
         private static readonly Lazy<string> s_idWebVersion = new Lazy<string>(
            () =>
            {
@@ -34,9 +36,14 @@ internal static class IdHelper
                return version[1];
            });
 
-        public static string CreateTelemetryInfo()
+        internal static string GetIdWebVersion()
+        {
+            return s_idWebVersion.Value;
+        }
+
+        internal static string CreateTelemetryInfo()
         {
-            return string.Format(CultureInfo.InvariantCulture, Constants.IDWebSku + s_idWebVersion.Value);
+            return string.Format(CultureInfo.InvariantCulture, IDWebSku + s_idWebVersion.Value);
         }
     }
 }
diff --git a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net462/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net462/InternalAPI.Unshipped.txt
index e69de29bb..9077d1a55 100644
--- a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net462/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net462/InternalAPI.Unshipped.txt
@@ -0,0 +1,6 @@
+Microsoft.Identity.Web.Diagnostics.IdHelper
+Microsoft.Identity.Web.IdHelper
+static Microsoft.Identity.Web.Diagnostics.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.Diagnostics.IdHelper.GetIdWebVersion() -> string!
+static Microsoft.Identity.Web.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.IdHelper.GetIdWebVersion() -> string!
diff --git a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net472/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net472/InternalAPI.Unshipped.txt
index e69de29bb..ff830bd0f 100644
--- a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net472/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net472/InternalAPI.Unshipped.txt
@@ -0,0 +1,6 @@
+Microsoft.Identity.Web.Diagnostics.IdHelper
+Microsoft.Identity.Web.IdHelper
+static Microsoft.Identity.Web.Diagnostics.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.Diagnostics.IdHelper.GetIdWebVersion() -> string!
+static Microsoft.Identity.Web.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.IdHelper.GetIdWebVersion() -> string!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net6.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net6.0/InternalAPI.Unshipped.txt
index e69de29bb..9077d1a55 100644
--- a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net6.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net6.0/InternalAPI.Unshipped.txt
@@ -0,0 +1,6 @@
+Microsoft.Identity.Web.Diagnostics.IdHelper
+Microsoft.Identity.Web.IdHelper
+static Microsoft.Identity.Web.Diagnostics.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.Diagnostics.IdHelper.GetIdWebVersion() -> string!
+static Microsoft.Identity.Web.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.IdHelper.GetIdWebVersion() -> string!
diff --git a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net7.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net7.0/InternalAPI.Unshipped.txt
index e69de29bb..9077d1a55 100644
--- a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net7.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net7.0/InternalAPI.Unshipped.txt
@@ -0,0 +1,6 @@
+Microsoft.Identity.Web.Diagnostics.IdHelper
+Microsoft.Identity.Web.IdHelper
+static Microsoft.Identity.Web.Diagnostics.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.Diagnostics.IdHelper.GetIdWebVersion() -> string!
+static Microsoft.Identity.Web.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.IdHelper.GetIdWebVersion() -> string!
diff --git a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net8.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net8.0/InternalAPI.Unshipped.txt
index e69de29bb..9077d1a55 100644
--- a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net8.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net8.0/InternalAPI.Unshipped.txt
@@ -0,0 +1,6 @@
+Microsoft.Identity.Web.Diagnostics.IdHelper
+Microsoft.Identity.Web.IdHelper
+static Microsoft.Identity.Web.Diagnostics.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.Diagnostics.IdHelper.GetIdWebVersion() -> string!
+static Microsoft.Identity.Web.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.IdHelper.GetIdWebVersion() -> string!
diff --git a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net9.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net9.0/InternalAPI.Unshipped.txt
index e69de29bb..9077d1a55 100644
--- a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net9.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/net9.0/InternalAPI.Unshipped.txt
@@ -0,0 +1,6 @@
+Microsoft.Identity.Web.Diagnostics.IdHelper
+Microsoft.Identity.Web.IdHelper
+static Microsoft.Identity.Web.Diagnostics.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.Diagnostics.IdHelper.GetIdWebVersion() -> string!
+static Microsoft.Identity.Web.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.IdHelper.GetIdWebVersion() -> string!
diff --git a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt
index e69de29bb..9077d1a55 100644
--- a/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.Diagnostics/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt
@@ -0,0 +1,6 @@
+Microsoft.Identity.Web.Diagnostics.IdHelper
+Microsoft.Identity.Web.IdHelper
+static Microsoft.Identity.Web.Diagnostics.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.Diagnostics.IdHelper.GetIdWebVersion() -> string!
+static Microsoft.Identity.Web.IdHelper.CreateTelemetryInfo() -> string!
+static Microsoft.Identity.Web.IdHelper.GetIdWebVersion() -> string!
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/DownstreamApi.cs b/src/Microsoft.Identity.Web.DownstreamApi/DownstreamApi.cs
index b0dccca0e..d55d89def 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/DownstreamApi.cs
+++ b/src/Microsoft.Identity.Web.DownstreamApi/DownstreamApi.cs
@@ -2,6 +2,7 @@
 // Licensed under the MIT License.
 
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Net.Http;
@@ -167,8 +168,8 @@ public Task<HttpResponseMessage> CallApiForAppAsync(
             HttpResponseMessage response = await CallApiInternalAsync(serviceName, effectiveOptions, false,
                                                                           null, user, cancellationToken).ConfigureAwait(false);
             return await DeserializeOutputAsync<TOutput>(response, effectiveOptions).ConfigureAwait(false);
-        }
-
+        }
+
 #if NET8_0_OR_GREATER
         /// <inheritdoc/>
         public async Task<TOutput?> CallApiForUserAsync<TInput, TOutput>(
@@ -267,7 +268,7 @@ public Task<HttpResponseMessage> CallApiForAppAsync(
         /// </summary>
         /// <param name="optionsInstanceName">Named configuration.</param>
         /// <param name="calledApiOptionsOverride">Delegate to override the configuration.</param>
-        internal /* for tests */ DownstreamApiOptions MergeOptions(
+        internal /* for tests */ DownstreamApiOptions MergeOptions(
             string? optionsInstanceName,
             Action<DownstreamApiOptions>? calledApiOptionsOverride)
         {
@@ -293,7 +294,7 @@ public Task<HttpResponseMessage> CallApiForAppAsync(
         /// <param name="optionsInstanceName">Named configuration.</param>
         /// <param name="calledApiOptionsOverride">Delegate to override the configuration.</param>
         /// <param name="httpMethod">Http method overriding the configuration options.</param>
-        internal /* for tests */ DownstreamApiOptions MergeOptions(
+        internal /* for tests */ DownstreamApiOptions MergeOptions(
             string? optionsInstanceName,
             Action<DownstreamApiOptionsReadOnlyHttpMethod>? calledApiOptionsOverride, HttpMethod httpMethod)
         {
@@ -311,8 +312,8 @@ public Task<HttpResponseMessage> CallApiForAppAsync(
             DownstreamApiOptionsReadOnlyHttpMethod clonedOptions = new DownstreamApiOptionsReadOnlyHttpMethod(options, httpMethod.ToString());
             calledApiOptionsOverride?.Invoke(clonedOptions);
             return clonedOptions;
-        }
-
+        }
+
         internal static HttpContent? SerializeInput<TInput>(TInput input, DownstreamApiOptions effectiveOptions)
         {
             return SerializeInputImpl(input, effectiveOptions, null);
@@ -350,7 +351,7 @@ public Task<HttpResponseMessage> CallApiForAppAsync(
         }
 
         internal static async Task<TOutput?> DeserializeOutputAsync<TOutput>(HttpResponseMessage response, DownstreamApiOptions effectiveOptions)
-             where TOutput : class
+             where TOutput : class
         {
             try
             {
@@ -398,8 +399,8 @@ public Task<HttpResponseMessage> CallApiForAppAsync(
                 }
                 return stringContent as TOutput;
             }
-        }
-
+        }
+
         private static async Task<TOutput?> DeserializeOutputImplAsync<TOutput>(HttpResponseMessage response, DownstreamApiOptions effectiveOptions, JsonTypeInfo<TOutput> outputJsonTypeInfo)
              where TOutput : class
         {
@@ -451,7 +452,7 @@ public Task<HttpResponseMessage> CallApiForAppAsync(
             }
         }
 
-        internal async Task<HttpResponseMessage> CallApiInternalAsync(
+        internal /* for tests */ async Task<HttpResponseMessage> CallApiInternalAsync(
             string? serviceName,
             DownstreamApiOptions effectiveOptions,
             bool appToken,
@@ -494,7 +495,7 @@ internal async Task<HttpResponseMessage> CallApiInternalAsync(
             return downstreamApiResult;
         }
 
-        internal async Task UpdateRequestAsync(
+        internal /* internal for test */ async Task UpdateRequestAsync(
             HttpRequestMessage httpRequestMessage,
             HttpContent? content,
             DownstreamApiOptions effectiveOptions,
@@ -502,6 +503,8 @@ internal async Task UpdateRequestAsync(
             ClaimsPrincipal? user,
             CancellationToken cancellationToken)
         {
+            AddCallerSDKTelemetry(effectiveOptions);
+
             if (content != null)
             {
                 httpRequestMessage.Content = content;
@@ -517,7 +520,7 @@ internal async Task UpdateRequestAsync(
                        effectiveOptions.Scopes,
                        effectiveOptions,
                        user,
-                       cancellationToken).ConfigureAwait(false);
+                       cancellationToken).ConfigureAwait(false);
 
                 httpRequestMessage.Headers.Add(Authorization, authorizationHeader);
             }
@@ -532,5 +535,26 @@ internal async Task UpdateRequestAsync(
             // Opportunity to change the request message
             effectiveOptions.CustomizeHttpRequestMessage?.Invoke(httpRequestMessage);
         }
+
+        internal /* for test */ static Dictionary<string, string> CallerSDKDetails { get; } = new()
+          {
+              { "caller-sdk-id", "IdWeb_1" },  
+              { "caller-sdk-ver", IdHelper.GetIdWebVersion() }
+          };
+
+        private static void AddCallerSDKTelemetry(DownstreamApiOptions effectiveOptions)
+        {
+            if (effectiveOptions.AcquireTokenOptions.ExtraQueryParameters == null)
+            {
+                effectiveOptions.AcquireTokenOptions.ExtraQueryParameters = CallerSDKDetails;
+            }
+            else
+            {
+                effectiveOptions.AcquireTokenOptions.ExtraQueryParameters["caller-sdk-id"] =
+                    CallerSDKDetails["caller-sdk-id"];
+                effectiveOptions.AcquireTokenOptions.ExtraQueryParameters["caller-sdk-ver"] =
+                    CallerSDKDetails["caller-sdk-ver"];
+            }
+        }
     }
 }
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net462/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net462/InternalAPI.Unshipped.txt
index 1ffcfc6b9..066b4e1dc 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net462/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net462/InternalAPI.Unshipped.txt
@@ -1 +1 @@
-bn 
+static Microsoft.Identity.Web.DownstreamApi.CallerSDKDetails.get -> System.Collections.Generic.Dictionary<string!, string!>!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net472/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net472/InternalAPI.Unshipped.txt
index e69de29bb..066b4e1dc 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net472/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net472/InternalAPI.Unshipped.txt
@@ -0,0 +1 @@
+static Microsoft.Identity.Web.DownstreamApi.CallerSDKDetails.get -> System.Collections.Generic.Dictionary<string!, string!>!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net6.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net6.0/InternalAPI.Unshipped.txt
index e69de29bb..066b4e1dc 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net6.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net6.0/InternalAPI.Unshipped.txt
@@ -0,0 +1 @@
+static Microsoft.Identity.Web.DownstreamApi.CallerSDKDetails.get -> System.Collections.Generic.Dictionary<string!, string!>!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net7.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net7.0/InternalAPI.Unshipped.txt
index e69de29bb..066b4e1dc 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net7.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net7.0/InternalAPI.Unshipped.txt
@@ -0,0 +1 @@
+static Microsoft.Identity.Web.DownstreamApi.CallerSDKDetails.get -> System.Collections.Generic.Dictionary<string!, string!>!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net8.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net8.0/InternalAPI.Unshipped.txt
index e69de29bb..066b4e1dc 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net8.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net8.0/InternalAPI.Unshipped.txt
@@ -0,0 +1 @@
+static Microsoft.Identity.Web.DownstreamApi.CallerSDKDetails.get -> System.Collections.Generic.Dictionary<string!, string!>!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net9.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net9.0/InternalAPI.Unshipped.txt
index e69de29bb..066b4e1dc 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net9.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/net9.0/InternalAPI.Unshipped.txt
@@ -0,0 +1 @@
+static Microsoft.Identity.Web.DownstreamApi.CallerSDKDetails.get -> System.Collections.Generic.Dictionary<string!, string!>!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt
index e69de29bb..066b4e1dc 100644
--- a/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt
+++ b/src/Microsoft.Identity.Web.DownstreamApi/PublicAPI/netstandard2.0/InternalAPI.Unshipped.txt
@@ -0,0 +1 @@
+static Microsoft.Identity.Web.DownstreamApi.CallerSDKDetails.get -> System.Collections.Generic.Dictionary<string!, string!>!
\ No newline at end of file
diff --git a/src/Microsoft.Identity.Web.TokenAcquisition/Constants.cs b/src/Microsoft.Identity.Web.TokenAcquisition/Constants.cs
index 9734ee86a..2b4b08399 100644
--- a/src/Microsoft.Identity.Web.TokenAcquisition/Constants.cs
+++ b/src/Microsoft.Identity.Web.TokenAcquisition/Constants.cs
@@ -144,7 +144,6 @@ public static class Constants
 
         // Telemetry headers
         internal const string TelemetryHeaderKey = "x-client-brkrver";
-        internal const string IDWebSku = "IDWeb.";
 
         // Authorize for scopes attributes
         internal const string XReturnUrl = "x-ReturnUrl";
diff --git a/tests/Microsoft.Identity.Web.Test/DownstreamWebApiSupport/DownstreamApiTests.cs b/tests/Microsoft.Identity.Web.Test/DownstreamWebApiSupport/DownstreamApiTests.cs
index 052a96e42..1e0bce09a 100644
--- a/tests/Microsoft.Identity.Web.Test/DownstreamWebApiSupport/DownstreamApiTests.cs
+++ b/tests/Microsoft.Identity.Web.Test/DownstreamWebApiSupport/DownstreamApiTests.cs
@@ -49,14 +49,51 @@ public async Task UpdateRequestAsync_WithContent_AddsContentToRequestAsync()
             // Arrange
             var httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, "https://example.com");
             var content = new StringContent("test content");
+            var options = new DownstreamApiOptions();
 
             // Act
-            await _input.UpdateRequestAsync(httpRequestMessage, content, new DownstreamApiOptions(), false, null, CancellationToken.None);
+            await _input.UpdateRequestAsync(httpRequestMessage, content, options, false, null, CancellationToken.None);
 
             // Assert
             Assert.Equal(content, httpRequestMessage.Content);
             Assert.Equal("application/json", httpRequestMessage.Headers.Accept.Single().MediaType);
             Assert.Equal("text/plain", httpRequestMessage.Content?.Headers.ContentType?.MediaType);
+            Assert.Equal(options.AcquireTokenOptions.ExtraQueryParameters, DownstreamApi.CallerSDKDetails);
+        }
+
+
+        [Fact]
+        public async Task UpdateRequestAsync_AddsToExtraQP()
+        {
+            // Arrange
+            var httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, "https://example.com");
+            var content = new StringContent("test content");
+            var options = new DownstreamApiOptions() {  
+                AcquireTokenOptions = new AcquireTokenOptions() { 
+                    ExtraQueryParameters = new Dictionary<string, string>() 
+                    { 
+                        { "n1", "v1" },
+                        { "n2", "v2" },
+                        { "caller-sdk-id", "bogus" } // value will be overwritten by the SDK
+                    }
+                } };
+
+            // Act
+            await _input.UpdateRequestAsync(httpRequestMessage, content, options, false, null, CancellationToken.None);
+
+            // Assert
+            Assert.Equal(content, httpRequestMessage.Content);
+            Assert.Equal("application/json", httpRequestMessage.Headers.Accept.Single().MediaType);
+            Assert.Equal("text/plain", httpRequestMessage.Content?.Headers.ContentType?.MediaType);
+            Assert.Equal("v1", options.AcquireTokenOptions.ExtraQueryParameters["n1"]);
+            Assert.Equal("v2", options.AcquireTokenOptions.ExtraQueryParameters["n2"]);
+            Assert.Equal(
+                DownstreamApi.CallerSDKDetails["caller-sdk-id"], 
+                options.AcquireTokenOptions.ExtraQueryParameters["caller-sdk-id"] );
+            Assert.Equal(
+                DownstreamApi.CallerSDKDetails["caller-sdk-ver"],
+                options.AcquireTokenOptions.ExtraQueryParameters["caller-sdk-ver"]);
+
         }
 
         [Theory]
@@ -83,6 +120,7 @@ public async Task UpdateRequestAsync_WithScopes_AddsAuthorizationHeaderToRequest
             Assert.Equal("ey", httpRequestMessage.Headers.Authorization?.Parameter);
             Assert.Equal("Bearer", httpRequestMessage.Headers.Authorization?.Scheme);
             Assert.Equal("application/json", httpRequestMessage.Headers.Accept.Single().MediaType);
+            Assert.Equal(options.AcquireTokenOptions.ExtraQueryParameters, DownstreamApi.CallerSDKDetails);
         }
 
         [Fact]