diff --git a/vendor/magento/module-negotiable-quote/Controller/Adminhtml/Quote/GetItemHash.php b/vendor/magento/module-negotiable-quote/Controller/Adminhtml/Quote/GetItemHash.php
index dc5b5b4336c6..7796bb3fa93c 100644
--- a/vendor/magento/module-negotiable-quote/Controller/Adminhtml/Quote/GetItemHash.php
+++ b/vendor/magento/module-negotiable-quote/Controller/Adminhtml/Quote/GetItemHash.php
@@ -63,10 +63,14 @@ public function execute(): ResultInterface
             throw new LocalizedException(__('There was a problem updating configuration'));
         }
         $items = $quote->getAllVisibleItems();
-        $item = end($items);
         $responseData = [];
-        $responseData['new_config_hash'] = $this->quoteItemHashHandler->getItemHashToIdItem($item);
-        $responseData['previous_config_hash'] = $data['item_hash'];
+        if (empty($items)) {
+            $responseData['new_config_hash'] =  $responseData['previous_config_hash'] = $data['item_hash'];
+        } else {
+            $item = end($items);
+            $responseData['new_config_hash'] = $this->quoteItemHashHandler->getItemHashToIdItem($item);
+            $responseData['previous_config_hash'] = $data['item_hash'];
+        }
         $resultJson->setData($responseData);
         return $resultJson;
     }