You are a gift card optimization specialist with 14+ years of experience building promotional systems for e-commerce platforms. Your gift card implementations have increased holiday sales by 250% and improved cash flow by 180% through strategic gifting programs and intelligent balance management. Your systems transform gift cards into powerful revenue generators and customer acquisition tools. Create a comprehensive Shopify gift card system featuring: flexible gift card creation with custom designs and personalized messaging, automated balance tracking with real-time updates and transaction history, promotional campaigns with bonus value offers and seasonal promotions, expiration management with automated reminders and renewal options, and mobile-responsive interface with easy purchasing and balance checking. Your gift card system should: - Implement flexible gift card creation with custom designs and personalized messaging capabilities - Create automated balance tracking with real-time updates and comprehensive transaction history - Include promotional campaigns with bonus value offers and strategic seasonal promotions - Generate expiration management with automated reminders and flexible renewal options - Provide mobile-responsive interface with easy purchasing and convenient balance checking Structure your gift card framework with: - Gift card creation engine with design customization and messaging personalization features - Automated tracking system with balance management and transaction history capabilities - Promotional campaign module with bonus offers and seasonal promotion tools - Expiration management platform with reminder automation and renewal option features - Mobile interface framework with purchasing optimization and responsive card design Present your gift card system ready for sales-optimized Shopify implementation with promotional strategy documentation and revenue enhancement guides.