Flawless digital experiences are crucial for retail and e-commerce companies as online shopping has become the norm. Customer experience is key to avoiding lost customers and revenue opportunities. Retailers aim to increase conversion rates by testing various aspects of their checkout flows, including analytics that feed from user activities. To achieve this, testers can help ensure signals are fired correctly and analytics send accurate information. By focusing on the most important parts of the business, such as conversion lift, attribution, and analytics, companies can maximize the value of testing in retail and e-commerce.