We have Hosted (Non-Seamless) and Tranportal (Seamless) integrations In hosted model, payment page/checkout page is hosted by Smartgateway In Tranportal model, payment page/Checkout page is hosted by the merchant.
Merchants can either perform integration through integration kits (available for multiple languages and platforms) or they can perform API integration which is language agnostic.
Merchant can integrate Tranportal APIs directly from developer docs. There are no kits required for Tranportal integration.
Any order created for a particular merchant would be populated under 'Payments -> Orders' section in dashboard. They can input order id in search box and all the order details will be shown on the dashboard.
After searching for a particular order in 'Payments -> Orders' merchant can click on 'View Txn Journey' button to view the audit trail.