diff --git a/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationImporter.cs b/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationImporter.cs
index 9d8a212da..5432f7c85 100644
--- a/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationImporter.cs
+++ b/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationImporter.cs
@@ -13,9 +13,19 @@ public static class LocalizationImporter
         public static async void ImportAllFromSheet(string webAppUrl)
         {
             string json = await GoogleSheetWebClient.Get(webAppUrl);
-            if (string.IsNullOrEmpty(json)) return;
+            if (string.IsNullOrEmpty(json))
+            {
+                Debug.LogError("[Localization Import] Google Sheet로부터 데이터를 가져오지 못했습니다.");
+                return;
+            }
 
             var payload = JsonConvert.DeserializeObject<SheetDownloadPayload>(json);
+            if (payload == null || payload.Tables == null || payload.Tables.Count == 0)
+            {
+                Debug.LogWarning("[Localization Import] 불러온 데이터가 비어있습니다.");
+                return;
+            }
+
             foreach (var kv in payload.Tables)
             {
                 string tableName = kv.Key;
@@ -29,27 +39,34 @@ public static async void ImportAllFromSheet(string webAppUrl)
                 }
 
                 var shared = collection.SharedData;
+                EditorUtility.SetDirty(shared); // ✅ SharedData 저장 대상 표시
 
                 foreach (var row in rows)
                 {
-                    if (!row.TryGetValue("Key", out var key)) continue;
+                    if (!row.TryGetValue("Key", out var key) || string.IsNullOrEmpty(key)) continue;
+
                     var sharedEntry = shared.GetEntry(key) ?? shared.AddKey(key);
 
                     foreach (var localeCode in row.Keys)
                     {
                         if (localeCode == "Key") continue;
+
                         var table = collection.GetTable(localeCode) as StringTable;
-                        if (table == null) continue;
+                        if (table == null)
+                        {
+                            Debug.LogWarning($"[Localization] Table '{tableName}'의 로케일 '{localeCode}' 테이블이 존재하지 않습니다.");
+                            continue;
+                        }
 
                         table.AddEntry(sharedEntry.Id, row[localeCode]);
-                        EditorUtility.SetDirty(table);
+                        EditorUtility.SetDirty(table); // ✅ StringTable 저장 대상 표시
                     }
                 }
-
-                AssetDatabase.SaveAssets();
             }
 
-            Debug.Log("<color=green>[Localization Import]</color> 완료");
+            AssetDatabase.SaveAssets(); // ✅ 변경사항 저장
+
+            Debug.Log("<color=green>[Localization Import]</color> 완료: Google Sheet → Unity");
         }
     }
 }
diff --git a/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationManager.cs b/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationManager.cs
index eccd25c8d..4ada9b995 100644
--- a/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationManager.cs
+++ b/Assets/_DDD/_Scripts/GameFramework/Localization/LocalizationManager.cs
@@ -8,6 +8,7 @@ public enum TableName
         None = 0,
         Item_Name,
         Item_Description,
+        Global_Message,
     }
 
     public static class LocalizationManager