diff --git a/src/FaluSdk/FaluClientOptions.cs b/src/FaluSdk/FaluClientOptions.cs
index 605389fd..c1429b7f 100644
--- a/src/FaluSdk/FaluClientOptions.cs
+++ b/src/FaluSdk/FaluClientOptions.cs
@@ -35,15 +35,12 @@ public class FaluClientOptions
 
     internal static JsonSerializerOptions GetSerializerOptions()
     {
-        if (serializerOptions is null)
+        serializerOptions ??= new(JsonSerializerDefaults.Web)
         {
-            serializerOptions = new(JsonSerializerDefaults.Web)
-            {
-                DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
-                AllowTrailingCommas = true,
-                ReadCommentHandling = JsonCommentHandling.Skip,
-            };
-        }
+            DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
+            AllowTrailingCommas = true,
+            ReadCommentHandling = JsonCommentHandling.Skip,
+        };
 
         return serializerOptions;
     }
diff --git a/src/FaluSdk/Messages/Message.cs b/src/FaluSdk/Messages/Message.cs
index b1f3b80d..9d19ad81 100644
--- a/src/FaluSdk/Messages/Message.cs
+++ b/src/FaluSdk/Messages/Message.cs
@@ -55,11 +55,6 @@ public class Message : MessagePatchModel, IHasId, IHasCreated, IHasUpdated, IHas
     /// </summary>
     public int Segements { get; set; }
 
-    /// <summary>
-    /// Provider used for the message.
-    /// </summary>
-    public MessageProvider? Provider { get; set; }
-
     /// <summary>
     /// Schedule information for the message.
     /// </summary>
@@ -70,6 +65,11 @@ public class Message : MessagePatchModel, IHasId, IHasCreated, IHasUpdated, IHas
     /// </summary>
     public DateTimeOffset? Sent { get; set; }
 
+    /// <summary>
+    /// If present, this property tells you the error encountered when processing the message.
+    /// </summary>
+    public MessageError? Error { get; set; }
+
     /// <summary>
     /// Time at which the message was delivered.
     /// This is dependent on the underlying provider.
diff --git a/src/FaluSdk/Messages/MessageError.cs b/src/FaluSdk/Messages/MessageError.cs
new file mode 100644
index 00000000..66d9008b
--- /dev/null
+++ b/src/FaluSdk/Messages/MessageError.cs
@@ -0,0 +1,16 @@
+namespace Falu.Messages;
+
+///
+public class MessageError
+{
+    /// <summary>
+    /// A short machine-readable string giving the reason for message failure.
+    /// </summary>
+    public string? Code { get; set; }
+
+    /// <summary>
+    /// A human-readable message that explains the reason for message failure.
+    /// These message can be shown to your user.
+    /// </summary>
+    public string? Message { get; set; }
+}
diff --git a/src/FaluSdk/Messages/MessageProvider.cs b/src/FaluSdk/Messages/MessageProvider.cs
deleted file mode 100644
index d7a3d372..00000000
--- a/src/FaluSdk/Messages/MessageProvider.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-using System.Text.Json.Serialization;
-
-namespace Falu.Messages;
-
-/// <summary>
-/// Details about the provider used to send a message.
-/// </summary>
-public class MessageProvider
-{
-    /// <summary>
-    /// Unique identifier for the request as provided by the provider.
-    /// </summary>
-    [JsonPropertyName("request_id")]
-    public string? RequestId { get; set; }
-
-    /// <summary>
-    /// The error message from the provider.
-    /// </summary>
-    public string? Error { get; set; }
-}
diff --git a/src/FaluSdk/Messages/MessagesServiceClient.cs b/src/FaluSdk/Messages/MessagesServiceClient.cs
index 39be5453..281d85ca 100644
--- a/src/FaluSdk/Messages/MessagesServiceClient.cs
+++ b/src/FaluSdk/Messages/MessagesServiceClient.cs
@@ -7,6 +7,7 @@ namespace Falu.Messages;
 public class MessagesServiceClient : BaseServiceClient<Message>,
                                      ISupportsListing<Message, MessagesListOptions>,
                                      ISupportsRetrieving<Message>,
+                                     //ISupportsCreation<Message, MessageCreateRequest>,
                                      ISupportsUpdating<Message, MessagePatchModel>,
                                      ISupportsCanceling<Message>,
                                      ISupportsRedaction<Message>
@@ -49,14 +50,14 @@ public virtual Task<ResourceResponse<Message>> GetAsync(string id,
         return GetResourceAsync(id, options, cancellationToken);
     }
 
-    /// <summary>Send a message.</summary>
+    /// <summary>Create a message.</summary>
     /// <param name="message"></param>
     /// <param name="options">Options to use for the request.</param>
     /// <param name="cancellationToken"></param>
     /// <returns></returns>
-    public virtual Task<ResourceResponse<MessageCreateResponse>> SendAsync(MessageCreateRequest message,
-                                                                           RequestOptions? options = null,
-                                                                           CancellationToken cancellationToken = default)
+    public virtual Task<ResourceResponse<MessageCreateResponse>> CreateAsync(MessageCreateRequest message,
+                                                                             RequestOptions? options = null,
+                                                                             CancellationToken cancellationToken = default)
     {
         if (message is null) throw new ArgumentNullException(nameof(message));
         message.Template?.Model?.GetType().EnsureAllowedForMessageTemplateModel();
@@ -64,6 +65,19 @@ public virtual Task<ResourceResponse<MessageCreateResponse>> SendAsync(MessageCr
         return CreateResourceAsync<MessageCreateResponse>(message, options, cancellationToken);
     }
 
+    /// <summary>Send a message.</summary>
+    /// <param name="message"></param>
+    /// <param name="options">Options to use for the request.</param>
+    /// <param name="cancellationToken"></param>
+    /// <returns></returns>
+    [Obsolete("Use 'CreateAsync(...)' instead.")]
+    public virtual Task<ResourceResponse<MessageCreateResponse>> SendAsync(MessageCreateRequest message,
+                                                                           RequestOptions? options = null,
+                                                                           CancellationToken cancellationToken = default)
+    {
+        return CreateAsync(message, options, cancellationToken);
+    }
+
     /// <summary>Update a message.</summary>
     /// <param name="id">Unique identifier for the message.</param>
     /// <param name="patch"></param>
diff --git a/src/FaluSdk/Webhooks/EventTypes.cs b/src/FaluSdk/Webhooks/EventTypes.cs
index fee04bed..0a6bfd31 100644
--- a/src/FaluSdk/Webhooks/EventTypes.cs
+++ b/src/FaluSdk/Webhooks/EventTypes.cs
@@ -3,7 +3,7 @@
 /// 
 public static class EventTypes
 {
-    #region Evaluation
+    #region Evaluations
 
     /// <summary>
     /// Occurs whenever an evaluation is created.
@@ -42,7 +42,7 @@ public static class EventTypes
 
     #endregion
 
-    #region IdentityVerifications
+    #region Identity Verifications
 
     /// <summary>
     /// Occurs whenever an identity verification is created.
@@ -135,7 +135,7 @@ public static class EventTypes
 
     #endregion
 
-    #region MessageTemplates
+    #region Message Templates
 
     /// <summary>
     /// Occurs whenever a message template is created.
@@ -182,7 +182,7 @@ public static class EventTypes
 
     #endregion
 
-    #region PaymentAuthorizations
+    #region Payment Authorizations
 
     /// <summary>
     /// Occurs whenever a payment authorization is requested.
@@ -201,7 +201,7 @@ public static class EventTypes
 
     #endregion
 
-    #region PaymentRefunds
+    #region Payment Refunds
 
     /// <summary>
     /// Occurs whenever a payment refund is created.
@@ -249,7 +249,7 @@ public static class EventTypes
 
     #endregion
 
-    #region TransferReversals
+    #region Transfer Reversals
 
     /// <summary>
     /// Occurs whenever a transfer reversal is created.
diff --git a/tests/FaluSdk.Tests/Clients/MessagesServiceClientTests.cs b/tests/FaluSdk.Tests/Clients/MessagesServiceClientTests.cs
index fa6f5e65..519566a5 100644
--- a/tests/FaluSdk.Tests/Clients/MessagesServiceClientTests.cs
+++ b/tests/FaluSdk.Tests/Clients/MessagesServiceClientTests.cs
@@ -92,7 +92,7 @@ await TestAsync(handler, async (client) =>
 
     [Theory]
     [MemberData(nameof(RequestOptionsData))]
-    public async Task SendAsync_Works(RequestOptions options)
+    public async Task CreateAsync_Works(RequestOptions options)
     {
         var handler = CreateAsync_Handler(options);
 
@@ -103,7 +103,7 @@ await TestAsync(handler, async (client) =>
                 To = new[] { Data!.To!, },
                 Body = Data!.Body
             };
-            var response = await client.Messages.SendAsync(model, options);
+            var response = await client.Messages.CreateAsync(model, options);
 
             Assert.Equal(HttpStatusCode.OK, response.StatusCode);
             Assert.NotNull(response.Resource);