What problem does it solve? Shoppers abandon checkout when forced to re-enter details, and stores lose repeat customers without account systems that save addresses, track orders, and manage profiles across Shopify, WooCommerce, BigCommerce, or custom headless builds. ## Core Features & Use Cases - Platform Setup Guidance: Step-by-step configuration of native account systems on Shopify (classic vs. new customer accounts), WooCommerce (My Account page), and BigCommerce (customer portal and groups). - Custom Authentication Code: TypeScript/Express reference implementations for registration and login using bcrypt hashing, zod validation, JWT sessions, and email enumeration prevention. - Address Book & Order History: CRUD patterns for multi-address storage with default-address management and paginated order history endpoints. - Use Case: A retailer launching a new storefront uses this Skill to enable optional customer accounts on Shopify, add a post-checkout account creation prompt, and configure an address book so returning customers check out faster. ## Quick Start Ask the AI to set up optional customer accounts with an address book and order history page for your Shopify or WooCommerce store.