Has anyone modified their hotspot credit card processing to handle the new Mastercard / Discover requirements for accepting partial payments?
ok, let me re-phrase the question 
… We are currently using the MT user manager and want to continue accepting Mastercard and Discover credit cards. There is a deadline of June 30th of being able to handle authorization reversals (partial payments are not required, but suggested).
So, can the user manager handle authorization reversal transactions? If not, can we modify the code to enable these transactions?
Thanks,
Mike