diff --git a/Runtime/Code/SDK/GuruSDK.cs b/Runtime/Code/SDK/GuruSDK.cs
index 7e1f3e0..a141278 100644
--- a/Runtime/Code/SDK/GuruSDK.cs
+++ b/Runtime/Code/SDK/GuruSDK.cs
@@ -184,6 +184,12 @@ namespace Guru
                 success = false;
             }
             Callbacks.SDK._onUserAuthResult?.Invoke(success);
+
+            if (success && !IsIAPReady)
+            {
+                StartIapService();
+            }
+
         }
         
         private void OnFirebaseAuthResult(bool success)
@@ -344,24 +350,7 @@ namespace Guru
                 
             }
             //----------- Set IAP ----------------
-            if (useIAP)
-            {
-                // InitIAP(_initConfig.GoogleKeys, _initConfig.AppleRootCerts); // 初始化IAP
-                Try(() =>
-                {
-                    LogI($"#4.3 --- Start IAP ---");
-                    if (_initConfig.GoogleKeys == null || _initConfig.AppleRootCerts == null)
-                    {
-                        LogException("[IAP] GoogleKeys is null when using IAPService! Integration failed. App will Exit");
-                    }
-
-
-                    InitIAP(UID, _initConfig.GoogleKeys, _initConfig.AppleRootCerts); // 初始化IAP
-                }, ex =>
-                {
-                    UnityEngine.Debug.LogError($"--- ERROR on useIAP: {ex.Message}");
-                });
-            }
+            
             //----------- Set Keywords ----------------
             if (useKeywords)
             {
@@ -416,7 +405,38 @@ namespace Guru
             StartAndroidDebugCmds();           
 #endif
         }
-        
+
+
+
+        private void StartIapService()
+        {
+            LogI($"#4.3 --- Start IAP ---");
+            if (_initConfig.IAPEnabled && _appServicesConfig.IsIAPEnabled())
+            {
+                // InitIAP(_initConfig.GoogleKeys, _initConfig.AppleRootCerts); // 初始化IAP
+                Try(() =>
+                {
+                    if (_initConfig.GoogleKeys == null || _initConfig.AppleRootCerts == null)
+                    {
+                        LogException("[IAP] GoogleKeys is null when using IAPService! Integration failed. App will Exit");
+                        return;
+                    }
+                    
+                    InitIAP(UID, _initConfig.GoogleKeys, _initConfig.AppleRootCerts); // 初始化IAP
+                }, ex =>
+                {
+                    UnityEngine.Debug.LogError($"--- ERROR on useIAP: {ex.Message}");
+                });
+            }
+            else
+            {
+                LogI($"--- IAP is not enabled, skip IAP service init ::    _initConfig.IAPEnabled:{_initConfig.IAPEnabled}     guruService.IsIAPEnabled:{_appServicesConfig.IsIAPEnabled()}");
+            }
+            
+        }
+
+
+
         /// <summary>
         /// Get the guru-service cloud config value;
         /// User can fetch the cloud guru-service config by using Custom Service Key