In order to start receiving payments for your courses, you need to connect your LearnWorlds site with a payment gateway.

1Go to Financial--> Payment Gateway.

2 Select the Payment Gateway you want.

Depending on the Payment Gateway you want to use, you can follow the instructions in the following articles: 

Stripe: Follow this quick tutorial

2checkout: Follow the steps here

PayPal: Follow this thorough yet simple article 

Shopify: Follow this easy guide

PagSeguro (Brazil): Follow this article

Keep in mind that: Subscription-based sales are supported only through the Stripe payment gateway.