Building a pay per transaction siteLocked
I have to build a comparison shopping web site,
where I will be paid by merchants on per successuful transaction basis.
what are the ways to track whether a successful transaction was initiated from my site?
Are open source solutions/templates available for the same?
Does any CMS(for e.g. Joomla) do it?
In summary, let me know the free/paid solutions of the above problem.
thanks in advance.