diff --git a/EffectConnectSDK/Core/Model/Request/OrderUpdate.php b/EffectConnectSDK/Core/Model/Request/OrderUpdate.php
index 5d178e8..b8a4abe 100644
--- a/EffectConnectSDK/Core/Model/Request/OrderUpdate.php
+++ b/EffectConnectSDK/Core/Model/Request/OrderUpdate.php
@@ -39,6 +39,27 @@ final class OrderUpdate extends ApiModel implements ApiModelInterface
          * @var string $_orderIdentifier
          */
         protected $_orderIdentifier;
+
+        /**
+         * @var int $_connectionIdentifier
+         *
+         * Use this field to assign an identifier to your order
+         */
+        protected $_connectionIdentifier;
+
+        /**
+         * @var string $_connectionInvoice
+         *
+         * Use this field to assign an invoice identifier to your order
+         */
+        protected $_connectionInvoice;
+
+        /**
+         * @var string $_connectionNumber
+         *
+         * Use this field to assign a number to your order
+         */
+        protected $_connectionNumber;
         /**
          * @var array $_addTags
          *
@@ -107,6 +128,42 @@ public function removeTag($tag)
             return $this;
         }
 
+        /**
+         * @param int $connectionIdentifier
+         *
+         * @return OrderUpdate
+         */
+        public function setConnectionIdentifier($connectionIdentifier)
+        {
+            $this->_connectionIdentifier = $connectionIdentifier;
+
+            return $this;
+        }
+
+        /**
+         * @param string $connectionInvoice
+         *
+         * @return OrderUpdate
+         */
+        public function setConnectionInvoice($connectionInvoice)
+        {
+            $this->_connectionInvoice = $connectionInvoice;
+
+            return $this;
+        }
+
+        /**
+         * @param string $connectionNumber
+         *
+         * @return OrderUpdate
+         */
+        public function setConnectionNumber($connectionNumber)
+        {
+            $this->_connectionNumber = $connectionNumber;
+
+            return $this;
+        }
+
         /**
          * @return string
          */
@@ -139,8 +196,32 @@ public function getRemoveTags()
             return $this->_removeTags;
         }
 
+        /**
+         * @return int
+         */
+        public function getConnectionIdentifier()
+        {
+            return $this->_connectionIdentifier;
+        }
+
+        /**
+         * @return string
+         */
+        public function getConnectionInvoice()
+        {
+            return $this->_connectionInvoice;
+        }
+
+        /**
+         * @return string
+         */
+        public function getConnectionNumber()
+        {
+            return $this->_connectionNumber;
+        }
+
         protected function isIterator()
         {
             return true;
         }
-    }
\ No newline at end of file
+    }