--- old.module	Fri Nov 11 11:17:51 2011
+++ new.module	Tue Jan 10 21:29:16 2012
@@ -46,6 +46,7 @@
     'server' => 'sandbox',
     'payment_action' => 'sale',
     'ipn_logging' => 'notification',
+	'paypal_cart_type' => 'send_cart',
   );
 
   $form['business'] = array(
@@ -95,6 +96,15 @@
     ),
     '#default_value' => $settings['ipn_logging'],
   );
+  $form['paypal_cart_type'] = array(
+    '#type' => 'select',
+    '#title' => t('Send full cart list to Paypal'),
+    '#options' => array(
+	  'send_cart' => t('Yes'), 
+	  'send_overview' => t('No'),
+	),
+    '#default_value' => $settings['paypal_cart_type'],
+  );
 
   return $form;
 }
@@ -133,6 +143,9 @@
 
     // Specify the current payment method instance ID in the notify_url
     'payment_method' => $payment_method['instance_id'],
+	
+	// Setting to send full cart list to Paypal
+	'paypal_cart_type' => variable_get('paypal_cart_type'),
   );
 
   return commerce_paypal_wps_order_form($form, $form_state, $order, $payment_method['settings'] + $settings);
@@ -309,13 +322,28 @@
 
     // Use the timestamp to generate a unique invoice number
     'invoice' => commerce_paypal_ipn_invoice($order),
-
-    // Define a single item in the cart representing the whole order
-    'amount_1' => round(commerce_currency_amount_to_decimal($amount, $currency_code), 2),
-    'item_name_1' => t('Order @order_number at @store', array('@order_number' => $order->order_number, '@store' => variable_get('site_name', url('<front>', array('absolute' => TRUE))))),
-    'on0_1' => t('Product count'),
-    'os0_1' => commerce_line_items_quantity($wrapper->commerce_line_items, commerce_product_line_item_types()),
   );
+
+  // Append items in cart to the $data array if setting is enabled.
+  if ($settings['paypal_cart_type'] == 'send_cart') {
+    $product_count = 0;
+    foreach ($wrapper->commerce_line_items as $delta => $line_item_wrapper) {
+      if (in_array($line_item_wrapper->type->value(), commerce_product_line_item_types())) {
+        $product_count++;
+        $data['item_name_' . $product_count] = $line_item_wrapper->line_item_label->value();
+        // Divide price by 100 to add decimal point.
+        $data['amount_' . $product_count] = $line_item_wrapper->commerce_unit_price->amount->value() / 100;
+        $data['quantity_' . $product_count] = round($line_item_wrapper->quantity->value(), 2);
+      }
+    }     
+  }
+  // Define a single item in the cart representing the whole order
+  else {
+    $data['on0_1'] = t('Product count');
+    $data['os0_1'] = commerce_line_items_quantity($wrapper->commerce_line_items, commerce_product_line_item_types());
+    $data['amount_1'] = round(commerce_currency_amount_to_decimal($amount, $currency_code), 2);
+    $data['item_name_1'] = t('Order @order_number at @store', array('@order_number' => $order->order_number, '@store' => variable_get('site_name', url('<front>', array('absolute' => TRUE)))));  
+  }
 
   $form['#action'] = commerce_paypal_wps_server_url($settings['server']);