05Configure the Classic SaaS HPP interface
Classic SaaS supports HPP only. In your platform payment settings, select its compatible custom payment interface. Use the Classic SaaS URL from the integration guide with your API Key and payment method. Keep the platform POST fields and callback settings as documented; no standalone plugin download is required.
Done when: The store offers MochiPay at checkout. Place a small order to verify the redirect and payment callback.
Open SaaS setup instructions ↗