add_filter('wf_ups_shipment_confirm_request','alter_shipment_request',10,3);
function alter_shipment_request($request,$order){

	$customer_first_name 		= $order->shipping_first_name;
	$customer_last_name 		= $order->shipping_last_name;
	$customer_full_name			= $customer_first_name.' '.$customer_last_name;

	$request	=	str_replace('<CompanyName>-</CompanyName>','<CompanyName>'.$customer_full_name.'</CompanyName>',$request);
	return $request;
}