Set Up Your Org
To get started, configure your Salesforce org with products, pricing and invoicing information, a payment gateway provider, and a tax provider. Set up standard Salesforce objects that are designed for Subscription Management using the no-code Object Manager in Salesforce.
See Set Up and Maintain Subscription Management in Salesforce Help.
Then, build your Subscription Management solution with the REST API, create a low-code solution using Salesforce Flow, or use a combination of the two technologies.