In e-commerce, the checkout is a vital component where revenue is secured or lost. As operational realities shift—be it tech updates, gateway changes, or new locales—checkout processes can silently falter. Without daily testing, subtle errors can lead to significant sales decline. Create a preventative operating model where QA has a dedicated owner and SLA. This ensures swift detection and resolution of issues such as payment misconfigurations and theme conflicts, guaranteeing a frictionless customer experience and protecting revenue streams.