diff --git a/Kontent.Ai.Delivery.Abstractions/Sync/ISyncItem.cs b/Kontent.Ai.Delivery.Abstractions/Sync/ISyncItem.cs
index 091c52b4..ea08ef70 100644
--- a/Kontent.Ai.Delivery.Abstractions/Sync/ISyncItem.cs
+++ b/Kontent.Ai.Delivery.Abstractions/Sync/ISyncItem.cs
@@ -7,30 +7,7 @@ namespace Kontent.Ai.Delivery.Abstractions;
 /// </summary>
 public interface ISyncItem
 {
-    /// <summary>
-    /// Gets the content item's codename.
-    /// </summary>
-    string Codename { get; }
-    
-    /// <summary>
-    /// Gets the content item's internal ID.
-    /// </summary>
-    Guid Id { get; }
-    
-    /// <summary>
-    /// Gets the content item's type codename.
-    /// </summary>
-    string Type { get; }
-    
-    /// <summary>
-    /// Gets the codename of the language that the content is in.
-    /// </summary>
-    string Language { get; }
-    
-    /// <summary>
-    /// Gets the content item's collection codename. For projects without collections enabled, the value is default.
-    /// </summary>
-    string Collection { get; }
+    ISyncItemData Data { get; }
     
     /// <summary>
     /// Gets the information whether the content item was modified or deleted since the last synchronization.
diff --git a/Kontent.Ai.Delivery.Abstractions/Sync/ISyncItemData.cs b/Kontent.Ai.Delivery.Abstractions/Sync/ISyncItemData.cs
new file mode 100644
index 00000000..971c1b63
--- /dev/null
+++ b/Kontent.Ai.Delivery.Abstractions/Sync/ISyncItemData.cs
@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+
+namespace Kontent.Ai.Delivery.Abstractions;
+
+/// <summary>
+/// Represents a delta update.
+/// </summary>
+public interface ISyncItemData
+{
+    IContentItemSystemAttributes System { get; }
+    object Elements { get; }
+}
\ No newline at end of file
diff --git a/Kontent.Ai.Delivery/Sync/SyncItem.cs b/Kontent.Ai.Delivery/Sync/SyncItem.cs
index 319010bb..945ea4c3 100644
--- a/Kontent.Ai.Delivery/Sync/SyncItem.cs
+++ b/Kontent.Ai.Delivery/Sync/SyncItem.cs
@@ -1,45 +1,27 @@
 using System;
+using System.Collections.Generic;
 using Kontent.Ai.Delivery.Abstractions;
 using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 
 namespace Kontent.Ai.Delivery.Sync;
 
 /// <inheritdoc/>
-public class SyncItem : ISyncItem
+internal sealed class SyncItem : ISyncItem
 {
-    /// <inheritdoc/>
-    [JsonProperty("codename")]
-    public string Codename { get; internal set; }
+    [JsonProperty("data")]
+    public ISyncItemData Data { get; internal set; }
 
-    /// <inheritdoc/>
-    [JsonProperty("id")]
-    public Guid Id { get; internal set; }
-
-    /// <inheritdoc/>
-    [JsonProperty("type")]
-    public string Type { get; internal set; }
-
-    /// <inheritdoc/>
-    [JsonProperty("language")]
-    public string Language { get; internal set; }
-
-    /// <inheritdoc/>
-    [JsonProperty("collection")]
-    public string Collection { get; internal set; }
-
-    /// <inheritdoc/>
     [JsonProperty("change_type")]
     public string ChangeType { get; internal set; }
 
-    /// <inheritdoc/>
     [JsonProperty("timestamp")]
     public DateTime Timestamp { get; internal set; }
 
-    /// <summary>
-    /// Constructor used for deserialization (e.g. for caching purposes), contains no logic.
-    /// </summary>
     [JsonConstructor]
-    public SyncItem()
-    {
+    public SyncItem(ISyncItemData data, string changeType, DateTime timestamp) {
+        Data = data;
+        ChangeType = changeType;
+        Timestamp = timestamp;
     }
 }
\ No newline at end of file
diff --git a/Kontent.Ai.Delivery/Sync/SyncItemData.cs b/Kontent.Ai.Delivery/Sync/SyncItemData.cs
new file mode 100644
index 00000000..ea0966a7
--- /dev/null
+++ b/Kontent.Ai.Delivery/Sync/SyncItemData.cs
@@ -0,0 +1,22 @@
+using System.Collections.Generic;
+using System.Linq;
+using Kontent.Ai.Delivery.Abstractions;
+using Kontent.Ai.Delivery.ContentTypes.Element;
+using Newtonsoft.Json;
+
+namespace Kontent.Ai.Delivery.Sync
+{
+    public class SyncItemData : ISyncItemData
+    {
+        [JsonProperty("system")]
+        public IContentItemSystemAttributes System { get; internal set; }
+
+        [JsonProperty("elements")]
+        public object Elements { get; internal set; }
+
+        [JsonConstructor]
+        public SyncItemData()
+        {
+        }
+    }
+}
\ No newline at end of file