QuickBooks/QBXML/Object/Invoice.php
public function setClassApplicationID($value)
	{
		return $this->set('ClassRef ' . QUICKBOOKS_API_APPLICATIONID, $this->encodeApplicationID(QUICKBOOKS_OBJECT_CLASS, QUICKBOOKS_LISTID, $value));
	}
public function setClassApplicationID($value)
	{
		return $this->set('ClassRef ' . QUICKBOOKS_API_APPLICATIONID, $this->encodeApplicationID(QUICKBOOKS_OBJECT_CLASS, QUICKBOOKS_LISTID, $value));
	}
Set the class application ID

@param mixed $value
@return boolean