diff --git a/src/Ebay.php b/src/Ebay.php
index 1b298e5..e6052a6 100644
--- a/src/Ebay.php
+++ b/src/Ebay.php
@@ -35,7 +35,8 @@ public function getAuthToken(){
     /*
      * Return configurations from Config
      */
-    public function getConfig(){
+    public function getConfig($args=[]){
+        $this->config['siteId'] = isset($args['siteId'])?$args['siteId']:$this->config['siteId'];
         return $this->config;
     }
 }
\ No newline at end of file
diff --git a/src/EbayServices.php b/src/EbayServices.php
index 6b34a36..40470a0 100644
--- a/src/EbayServices.php
+++ b/src/EbayServices.php
@@ -8,10 +8,10 @@ class EbayServices
 {
     private $sdk;
 
-    function __construct()
+    function __construct($args=[])
     {
         $ebay = new Ebay();
-        $config = $ebay->getConfig();
+        $config = $ebay->getConfig($args);
         $this->sdk = new Sdk($config);
     }