diff --git a/retailcrm/lib/RetailcrmCartUploader.php b/retailcrm/lib/RetailcrmCartUploader.php
index 8a13710..06821cc 100644
--- a/retailcrm/lib/RetailcrmCartUploader.php
+++ b/retailcrm/lib/RetailcrmCartUploader.php
@@ -263,7 +263,6 @@ class RetailcrmCartUploader
                 'customer' => ['externalId' => $cart->id_customer],
                 'clearAt' => null,
                 'createdAt' => DateTimeImmutable::createFromFormat('Y-m-d H:i:s', $cart->date_add)->format(static::$crmCartDateFormat),
-                'droppedAt' => DateTimeImmutable::createFromFormat('Y-m-d H:i:s', $cart->date_add)->format(static::$crmCartDateFormat),
             ];
 
             if (!$isExistExternalId) {