Added: SKU with configurable, group, bundle product Title

Author: Aasim Goriya

app/code/Magento/Paypal/Model/Cart.php

@@ -120,6 +120,8 @@ protected function _importItemsFromSalesModel()
                 continue;
             }
 
+            $isChildItem = $item->getOriginalItem()->getHasChildren();
+            $itemName = $isChildItem ? $item->getName() . ' - ' . $item->getOriginalItem()->getSku() : $item->getName();
             $amount = $item->getPrice();
             $qty = $item->getQty();
 
@@ -141,7 +143,7 @@ protected function _importItemsFromSalesModel()
             }
 
             $this->_salesModelItems[] = $this->_createItemFromData(
-                $item->getName() . $subAggregatedLabel,
+                $itemName . $subAggregatedLabel,
                 $qty,
                 $amount
             );