Self-Serve Shopping Cart - Session-based shopping cart allowing customers to browse and add products Online Checkout - Complete checkout form capturing customer/billing information and payment method selection Automatic Order Creation - Orders created from completed cart checkout (separate from Invoices) Product Type Support - Handles Traditional (physical/service) and Digital (downloadable) products equally Digital File Delivery - Automatic download link generation and delivery for digital products upon payment Payment Gateway Integration - Orders integrate with Invoice plugin gateway system for card, bank transfer, and other payment methods Tax Calculation - Automatic tax calculation based on product tax rates at checkout time Coupon/Discount Support - Apply promotional codes at