There are two portals that can be used accordingly.
This enables you to conduct exhaustive integration tests & monitoring from a centralized place before you go live with your service/product.
This is where your live payments will occur. Real funds from real customers will be collected and paid out via this portal. You will need approval from [email protected] to transact live through this portal's API.
We intend to make your migration from the sandbox to live smooth that you will only need to change the API endpoints and application keys and everything will work as expected.