QuickBooks/QBXML/Object/Invoice.php
public function setShipMethodApplicationID($value)
	{
		return $this->set('ShipMethodRef ' . QUICKBOOKS_API_APPLICATIONID, $this->encodeApplicationID(QUICKBOOKS_OBJECT_SHIPMETHOD, QUICKBOOKS_LISTID, $value));
	}
public function setShipMethodApplicationID($value)
	{
		return $this->set('ShipMethodRef ' . QUICKBOOKS_API_APPLICATIONID, $this->encodeApplicationID(QUICKBOOKS_OBJECT_SHIPMETHOD, QUICKBOOKS_LISTID, $value));
	}
Set the application ID for the shipping method

@param mixed $value		The shipping method primary key from your application
@return 					boolean