The review step is the user's final chance to update their shopping cart before processing payment for the sale. At this stage, they will be able to view the products in their cart, the prices, quantities, subtotal, freight charges, and order total before they complete their purchase.
Payment options are set in the ERP. Depending on the terms defined for the customer, they may be able to pay via credit card or with terms. If a user pays by credit card on the web portal, their charge is pre-authorized only. Final authorization of the charge occurs in the ERP.