What is the best integration path for E-commerce - plugin (WooCommerce/PrestaShop) vs API/webhooks?

A plugin is the best choice when a merchant wants the fastest launch with minimal development work - WooCommerce and PrestaShop integrations cover standard checkout flows and order status updates out of the box. API and webhooks are best when a merchant needs deeper customization, such as a custom checkout UX, multi-store logic or marketplace-style flows. Many teams start with a plugin for speed, then move to API/webhooks as they scale and require more control.