Overview
IMPORTANT: Test Live Checkout for Magento 2.x is not available.
This documentation is for the Magento 2.x version. For the Magento 1.x version, see here.
Background
Automated browser testing is an established paradigm that allows a developer to programmatically control a web browser through an API. While it may not seem obvious at first, this is especially valuable for online retailers because it allows a developer to simulate real user behaviors within the context of a web browser, providing a mechanism for testing aspects of your storefront.
About
Test Live Checkout is intended for use with automated browser testing tools, such as Puppeteer and Selenium. By allowing authenticated users to submit test orders using real products, Test Live Checkout can help aid in the discovery and remediation of issues affecting your checkout, which subsequently affect your bottom line, too.
Test Live Checkout provides the most value when used with automated browser tests, as part of a comprehensive transaction monitoring plan. However, it can be a helpful tool to use during development and testing phases, as well, because it provides useful feedback regarding checkout health.