Can someone tell me if fulfillment pulls all the items just like the shipments? Or is this just another lack of updating the developer documentation? If this part of the system can't pull items.. WOW, how bad is that! Please help with this detail!!!!!! do i use IncludeFullfillmentItems = true.. really bad.
CURLOPT_URL => 'https://ssapi.shipstation.com/fullfillment?OrderNumber'.$_REQUEST['order_number'].'&IncludeShipmentItems=true&TrackingNumber='.$_REQUEST['tracking_number'],