diff --git a/Libraries/Microsoft.Teams.Api/Clients/ApiClient.cs b/Libraries/Microsoft.Teams.Api/Clients/ApiClient.cs
index 0c2f04ec..b1588d2a 100644
--- a/Libraries/Microsoft.Teams.Api/Clients/ApiClient.cs
+++ b/Libraries/Microsoft.Teams.Api/Clients/ApiClient.cs
@@ -14,6 +14,18 @@ public class ApiClient : Client
     public virtual TeamClient Teams { get; }
     public virtual MeetingClient Meetings { get; }
 
+    /// <summary>
+    /// Gets the underlying <see cref="IHttpClient"/> instance used by this <see cref="ApiClient"/>
+    /// and its sub-clients to perform HTTP requests.
+    /// </summary>
+    /// <remarks>
+    /// This property is provided for advanced scenarios where you need to issue custom HTTP
+    /// calls that are not yet covered by the strongly-typed clients exposed by <see cref="ApiClient"/>.
+    /// Prefer using the typed clients (<see cref="Bots"/>, <see cref="Conversations"/>,
+    /// <see cref="Users"/>, <see cref="Teams"/>, <see cref="Meetings"/>) whenever possible.
+    /// Relying on this property may couple your code to the current HTTP implementation and
+    /// could limit future refactoring of the underlying client.
+    /// </remarks>
     public IHttpClient Client { get => base._http; }
 
     public ApiClient(string serviceUrl, CancellationToken cancellationToken = default) : base(cancellationToken)
@@ -34,7 +46,6 @@ public ApiClient(string serviceUrl, IHttpClient client, CancellationToken cancel
         Users = new UserClient(_http, cancellationToken);
         Teams = new TeamClient(serviceUrl, _http, cancellationToken);
         Meetings = new MeetingClient(serviceUrl, _http, cancellationToken);
-
     }
 
     public ApiClient(string serviceUrl, IHttpClientOptions options, CancellationToken cancellationToken = default) : base(options, cancellationToken)
diff --git a/Libraries/Microsoft.Teams.Api/Clients/ReactionClient.cs b/Libraries/Microsoft.Teams.Api/Clients/ReactionClient.cs
index 5759d686..ea166991 100644
--- a/Libraries/Microsoft.Teams.Api/Clients/ReactionClient.cs
+++ b/Libraries/Microsoft.Teams.Api/Clients/ReactionClient.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
 using Microsoft.Teams.Api.Messages;
@@ -45,11 +45,8 @@ public ReactionClient(string serviceUrl, IHttpClientFactory factory, Cancellatio
     /// <param name="reactionType">
     /// The reaction type (for example: "like", "heart", "laugh", etc.).
     /// </param>
-    /// <param name="userId">
-    /// Optional id of the user on whose behalf the reaction is added/updated (if supported by the service).
-    /// </param>
     /// <returns>
-    /// A <see cref="Resource"/> describing the reaction, or <c>null</c> if the service returned an empty body.
+    /// A <see cref="Task"/> representing the asynchronous operation.
     /// </returns>
     public async Task CreateOrUpdateAsync(
         string conversationId,
@@ -72,9 +69,9 @@ ReactionType reactionType
     /// <param name="reactionType">
     /// The reaction type to remove (for example: "like", "heart", "laugh", etc.).
     /// </param>
-    /// <param name="userId">
-    /// Optional id of the user whose reaction should be removed (if supported by the service).
-    /// </param>
+    /// <returns>
+    /// A <see cref="Task"/> representing the asynchronous operation.
+    /// </returns>
     public async Task DeleteAsync(
         string conversationId,
         string activityId,
diff --git a/Libraries/Microsoft.Teams.Api/Messages/Reaction.cs b/Libraries/Microsoft.Teams.Api/Messages/Reaction.cs
index ec8613c5..1bbb568b 100644
--- a/Libraries/Microsoft.Teams.Api/Messages/Reaction.cs
+++ b/Libraries/Microsoft.Teams.Api/Messages/Reaction.cs
@@ -8,7 +8,7 @@
 namespace Microsoft.Teams.Api.Messages;
 
 /// <summary>
-/// The type of reaction given to the
+/// The type of reaction given to the message.
 /// </summary>
 [JsonConverter(typeof(JsonConverter<ReactionType>))]
 public class ReactionType(string value) : StringEnum(value)
diff --git a/Samples/Samples.Reactions/Program.cs b/Samples/Samples.Reactions/Program.cs
index 7b25d830..20be7dc7 100644
--- a/Samples/Samples.Reactions/Program.cs
+++ b/Samples/Samples.Reactions/Program.cs
@@ -32,7 +32,7 @@
 teams.OnMessageReaction(async (context, cancellationToken) =>
 {
     context.Log.Info($"Reaction '{context.Activity.ReactionsAdded?.FirstOrDefault()?.Type}' added by {context.Activity.From?.Name}");
-    await context.Send($"you reacted with  added '{context.Activity.ReactionsAdded?.FirstOrDefault()?.Type}' " +
+    await context.Send($"you added '{context.Activity.ReactionsAdded?.FirstOrDefault()?.Type}' " +
         $"and removed '{context.Activity.ReactionsRemoved?.FirstOrDefault()?.Type}'", cancellationToken);
 });
 
diff --git a/Tests/Microsoft.Teams.Api.Tests/Clients/ReactionClientTests.cs b/Tests/Microsoft.Teams.Api.Tests/Clients/ReactionClientTests.cs
new file mode 100644
index 00000000..cef8b1f8
--- /dev/null
+++ b/Tests/Microsoft.Teams.Api.Tests/Clients/ReactionClientTests.cs
@@ -0,0 +1,74 @@
+using System.Net;
+
+using Microsoft.Teams.Api.Clients;
+using Microsoft.Teams.Api.Messages;
+using Microsoft.Teams.Common.Http;
+
+using Moq;
+
+namespace Microsoft.Teams.Api.Tests.Clients;
+
+public class ReactionClientTests
+{
+    [Fact]
+    public async Task ReactionClient_CreateOrUpdateAsync()
+    {
+        var responseMessage = new HttpResponseMessage();
+        responseMessage.Headers.Add("Custom-Header", "HeaderValue");
+        var mockHandler = new Mock<IHttpClient>();
+        mockHandler
+            .Setup(handler => handler.SendAsync(It.IsAny<IHttpRequest>(), It.IsAny<CancellationToken>()))
+            .ReturnsAsync(new HttpResponse<string>()
+            {
+                Headers = responseMessage.Headers,
+                StatusCode = HttpStatusCode.OK,
+                Body = string.Empty
+            });
+
+        string serviceUrl = "https://serviceurl.com/";
+        var reactionClient = new ReactionClient(serviceUrl, mockHandler.Object);
+        string conversationId = "conversationId";
+        string activityId = "activityId";
+        var reactionType = ReactionType.Like;
+
+        await reactionClient.CreateOrUpdateAsync(conversationId, activityId, reactionType);
+
+        string expectedUrl = "https://serviceurl.com/v3/conversations/conversationId/activities/activityId/reactions/like";
+        HttpMethod expectedMethod = HttpMethod.Put;
+        mockHandler.Verify(x => x.SendAsync(
+            It.Is<IHttpRequest>(arg => arg.Url == expectedUrl && arg.Method == expectedMethod),
+            It.IsAny<CancellationToken>()),
+            Times.Once);
+    }
+
+    [Fact]
+    public async Task ReactionClient_DeleteAsync()
+    {
+        var responseMessage = new HttpResponseMessage();
+        responseMessage.Headers.Add("Custom-Header", "HeaderValue");
+        var mockHandler = new Mock<IHttpClient>();
+        mockHandler
+            .Setup(handler => handler.SendAsync(It.IsAny<IHttpRequest>(), It.IsAny<CancellationToken>()))
+            .ReturnsAsync(new HttpResponse<string>()
+            {
+                Headers = responseMessage.Headers,
+                StatusCode = HttpStatusCode.OK,
+                Body = string.Empty
+            });
+
+        string serviceUrl = "https://serviceurl.com/";
+        var reactionClient = new ReactionClient(serviceUrl, mockHandler.Object);
+        string conversationId = "conversationId";
+        string activityId = "activityId";
+        var reactionType = ReactionType.Heart;
+
+        await reactionClient.DeleteAsync(conversationId, activityId, reactionType);
+
+        string expectedUrl = "https://serviceurl.com/v3/conversations/conversationId/activities/activityId/reactions/heart";
+        HttpMethod expectedMethod = HttpMethod.Delete;
+        mockHandler.Verify(x => x.SendAsync(
+            It.Is<IHttpRequest>(arg => arg.Url == expectedUrl && arg.Method == expectedMethod),
+            It.IsAny<CancellationToken>()),
+            Times.Once);
+    }
+}