How to implement Authorize.net tracking code?

Question

I need to implement Authorize.net tracking code. In case of Paypal I extended Mage_Paypal_Model_Config with my own class and rewrote getBuildNotationCode() method. Is there any similar method in Authorisenet module?

Answer 1

I've contact with authorize.net support and they advised to use a variable called x_solution_id, so in my class I rewrited _buildRequest() method and set a needed field.

protected function _buildRequest(Varien_Object $payment)
    {
        $request = parent::_buildRequest($payment);
        $request->setXSolutionId('A10000xx');
        return $request;
    }