function column_customer_notes($item)
 {
     if ($item['user_id'] && !empty($item['user_id']) && get_userdata($item['user_id'])) {
         $wc_crm_customer_details = new WC_Crm_Customer_Details($item['user_id']);
         $notes = $wc_crm_customer_details->get_last_customer_note();
         if ($notes == 'No Customer Notes') {
             $customer_notes = '<span class="note-off">-</span>';
         } else {
             $customer_notes = '<a href="admin.php?page=wc_new_customer&screen=customer_notes&user_id=' . $item['user_id'] . '" class="open_c_notes note-on tips" data-tip="' . $notes . '"></a>';
         }
         return $customer_notes;
     } else {
         if ($item['order_id'] && !empty($item['order_id'])) {
             return '<span class="note-off">-</span>';
         }
     }
 }