Merge pull request #2161 from mailchimp/Issue2156-2.4

Issue2156 2.4

Author: gonzaloebiz

Model/Api/Cart.php

@@ -537,10 +537,6 @@ protected function _makeCart(\Magento\Quote\Model\Quote $cart, $mailchimpStoreId
          */
         foreach ($items as $item) {
             $line = [];
-            if ($item->getProductType()=='grouped') {
-                continue;
-            }
-
             if ($item->getProductType()==\Magento\ConfigurableProduct\Model\Product\Type\Configurable::TYPE_CODE) {
                 $variant = null;
                 if ($item->getOptionByCode('simple_product')) {