diff --git a/Libraries/SPTarkov.Server.Core/Callbacks/InventoryCallbacks.cs b/Libraries/SPTarkov.Server.Core/Callbacks/InventoryCallbacks.cs
index 18f1975cc..d7abf6a5b 100644
--- a/Libraries/SPTarkov.Server.Core/Callbacks/InventoryCallbacks.cs
+++ b/Libraries/SPTarkov.Server.Core/Callbacks/InventoryCallbacks.cs
@@ -379,6 +379,7 @@ public ItemEventRouterResponse SaveDialogueState(
         ItemEventRouterResponse output
     )
     {
-        throw new NotImplementedException();
+        inventoryController.SetDialogueProgress(pmcData, request, sessionId, output);
+        return output;
     }
 }
diff --git a/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs b/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs
index 028256cef..930995e2e 100644
--- a/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs
+++ b/Libraries/SPTarkov.Server.Core/Controllers/InventoryController.cs
@@ -136,6 +136,19 @@ public void PinOrLock(PmcData pmcData, PinOrLockItemRequest request, MongoId ses
         itemToAdjust.Upd.PinLockState = request.State;
     }
 
+    /// <summary>
+    ///     Handle /client/game/profile/items/moving SaveDialogueState
+    /// </summary>
+    /// <param name="pmcData">Player's PMC profile</param>
+    /// <param name="request"></param>
+    /// <param name="sessionId">Session/Player id</param>
+    /// <param name="output"></param>
+    public void SetDialogueProgress(PmcData pmcData, SaveDialogueStateRequest request, MongoId sessionId, ItemEventRouterResponse output)
+    {
+        var fullProfile = profileHelper.GetFullProfile(sessionId);
+        fullProfile.DialogueProgress = request.DialogueProgress;
+    }
+
     /// <summary>
     ///     Handle /client/game/profile/items/moving SetFavoriteItems
     /// </summary>
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/SaveDialogueStateRequest.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/SaveDialogueStateRequest.cs
index f1fe70348..007279d02 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/SaveDialogueStateRequest.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/Inventory/SaveDialogueStateRequest.cs
@@ -5,17 +5,17 @@ namespace SPTarkov.Server.Core.Models.Eft.Inventory;
 public record SaveDialogueStateRequest : InventoryBaseActionRequestData
 {
     [JsonPropertyName("nodePathTraveled")]
-    public List<NodePathTraveled> NodePathTraveled { get; set; }
+    public List<NodePathTraveled>? DialogueProgress { get; set; }
 }
 
 public class NodePathTraveled
 {
     [JsonPropertyName("traderId")]
-    public string TraderId { get; set; }
+    public string? TraderId { get; set; }
 
     [JsonPropertyName("dialogueId")]
-    public string DialogueId { get; set; }
+    public string? DialogueId { get; set; }
 
     [JsonPropertyName("nodeId")]
-    public string NodeId { get; set; }
+    public string? NodeId { get; set; }
 }
diff --git a/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs b/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs
index dca285099..fd0d3064c 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Eft/Profile/SptProfile.cs
@@ -2,6 +2,7 @@
 using SPTarkov.Server.Core.Models.Common;
 using SPTarkov.Server.Core.Models.Eft.Common;
 using SPTarkov.Server.Core.Models.Eft.Common.Tables;
+using SPTarkov.Server.Core.Models.Eft.Inventory;
 using SPTarkov.Server.Core.Models.Eft.Prestige;
 using SPTarkov.Server.Core.Models.Enums;
 using SPTarkov.Server.Core.Models.Spt.Dialog;
@@ -58,6 +59,12 @@ public record SptProfile
     /// </summary>
     [JsonPropertyName("customisationUnlocks")]
     public List<CustomisationStorage>? CustomisationUnlocks { get; set; }
+
+    /// <summary>
+    ///     Stores the most recently sent dialog progress result from the client
+    /// </summary>
+    [JsonPropertyName("dialogueProgress")]
+    public List<NodePathTraveled>? DialogueProgress { get; set; }
 }
 
 public record TraderPurchaseData
diff --git a/Libraries/SPTarkov.Server.Core/Routers/ItemEvents/InventoryItemEventRouter.cs b/Libraries/SPTarkov.Server.Core/Routers/ItemEvents/InventoryItemEventRouter.cs
index 2d3a3d397..1b3fa7046 100644
--- a/Libraries/SPTarkov.Server.Core/Routers/ItemEvents/InventoryItemEventRouter.cs
+++ b/Libraries/SPTarkov.Server.Core/Routers/ItemEvents/InventoryItemEventRouter.cs
@@ -42,6 +42,7 @@ protected override List<HandledRoute> GetHandledRoutes()
             new(ItemEventActions.SET_FAVORITE_ITEMS, false),
             new(ItemEventActions.QUEST_FAIL, false),
             new(ItemEventActions.PIN_LOCK, false),
+            new(ItemEventActions.SAVE_DIALOGUE_STATE, false),
         };
     }