Anonymous said: Developing a 3rd party payment module, using getCheckoutRedirectUrl() to redirect when the payment method is selected. When the control comes back with the success response what should happen? I assume we should show the review section of the onepage checkout but, how? Is there a way to load the onepage checkout page directly opening a section? Hope its clear. Thanks!
You have to create a custom review and submit order page - see PayPal Express for example. Once the customer is redirected back to Magento, they show a special Express Checkout Review screen.
You can’t use the regular Onepage Checkout review step (unless you build that as a customization).