Adobe Commerce checkout starter kit

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App Management is the preferred tool for creating and updating these extensions. The starter kit accelerates that process by providing a ready-made app for each checkout domain, so you can define, build, and deploy through App Management rather than starting from scratch.

The checkout starter kit provides a foundation for building custom checkout experiences for Adobe Commerce. It provides four independent Adobe Commerce App Management apps, one per checkout domain, each of which you can install, associate, and version on its own:

Payment - out-of-process payment method validation and filtering. See Payment.
Shipping - out-of-process shipping carrier setup and the shipping rates webhook. See Shipping.
Tax - out-of-process tax calculation, tax integration setup, and the Tax Management admin UI. See Tax.
Totals collector - example out-of-process discount webhook implementations. See Totals collector.

To learn how to set up an app, refer to the Getting Started page.

Resources

For more information on other technologies relevant to this project, see the following resources:

Adobe Developer Console documentation
App Management documentation
App Builder Extension Compatibility for PaaS and SaaS documentation
App submission guidelines documentation