PLS: Pack, Inserts, Samples is a sophisticated application tailored for merchants aiming to boost customer satisfaction through streamlined shipping processes. By utilizing product dimensions and user-configured rules, the app provides comprehensive control over the shipping method, ensuring each order is packed efficiently and accurately. Designed to minimize fulfillment errors and save time, the app automates the addition of packaging, marketing inserts, and free samples, creating a seamless experience even when using third-party logistics providers that lack this functionality. Merchants can easily implement rules for adding personalized thank-you notes or promotional samples, enhancing their physical marketing efforts. The app calculates the optimal packaging based on product and package dimensions, ensuring cost-effectiveness and customer satisfaction. Additionally, it supports flexible mailers and ship-ready products, adapting to various shipping needs and expanding its utility for a wide range of businesses.