Sierra Software Services no longer offers Authorize.net merchant accounts.
Now that you can obtain a PayPal business account for free, with no monthly
charges, it is the preferred and easiest solution.
Your piano accessories plugins can be wired to work seamlessly with your
free PayPal business account. We can also wire the plugins for
Authorize.net and other scenarios.
In addition, we offer an interface for PayPal that allows you to process
variable amount transactions. This allows you to process a card payment for
a tuning, deposit on work or piano parts, or any other variable amount