This document discusses shopping cart integration and API2Cart's solution for integrating SaaS apps with eCommerce platforms. Shopping cart integration allows SaaS apps access to store data to send personalized emails, manage inventory/orders, and process dropshipping. It benefits businesses by expanding their market share and functionality. However, integration is time-consuming and costly to develop and maintain. API2Cart provides a unified API to integrate SaaS apps with over 40 shopping carts at once, allowing access to products, customers, orders and other data through a single integration.