We can integrate with Moneris using their HPP product and the newer Moneris Checkout approach.
For the Checkout approach:
Configure the Checkout section in your Moneris store.
Via a Support Ticket, please provide the following information:
(one set for each setup ... QA and Production)Store ID
API token
Checkout ID
For the HPP approach:
Set the Silent XML postback to https://YOUR.SLATE.DOMAIN.edu/apply/payment?cmd=moneris
Provide the following (via a Support Ticket):
Moneris URL
store ID
HPP ID and the HPP Key.