This article explains how to enable Commerce and connect to a payment processor that will enable you to collect payments for your courses.
Click Apps in the navigation bar.
Next to Learner Center Website and Catalog, make sure the app is Active. If it is not, click Configure and toggle the button to enable the app.
Return to the Apps page. Next to Commerce, click Configure.
To connect with PayPal, enter your email in the field. Paypal will email you to set up your account after you make your first sale. Click Save.
To connect with Stripe, click Connect with Stripe. You will be prompted to sign in to your account or create a new account and connect. Next to Enable/Disable Commerce, toggle the button to enable commerce.