How do I use the Shopify Subscription app to sell subscription-based products on my store?

To use the Shopify Subscription app to sell subscription-based products on your store, follow these steps: Install the Shopify Subscription app from the Shopify App Store. Open the app and click on the "Subscription Products" tab. Click the "Add Subscription Product" button. Choose the product you want to sell as a subscription and customize the subscription options, such as the billing schedule and subscription duration. Set up the billing for your subscription product, including the payment gateway and the billing frequency. Customize the email notifications that will be sent to customers, such as renewal reminders and subscription expiration notifications. Preview and test your subscription product to make sure everything is set up correctly. Publish your subscription product on your store. That's it! Once you've set up your subscription product, customers will be able to sign up and pay for their subscriptions on your store. The app will handle the recurring billing and email notifications automatically.