What problem does it solve? Launching SMS marketing without proper consent handling exposes ecommerce stores to TCPA fines up to $1,500 per message and carrier blocking, while poorly configured campaigns suffer from low engagement and high opt-out rates. ## Core Features & Use Cases - Platform Selection & Setup: Step-by-step configuration for Postscript (Shopify), SMSBump (WooCommerce), Klaviyo SMS (BigCommerce), and custom Twilio implementations for headless stores. - Compliance-First Implementation: TCPA and GDPR requirements including unchecked opt-in checkboxes, quiet hours enforcement, STOP/HELP keyword handling, and 10DLC registration guidance. - Segmentation & Measurement: High-ROI audience segments (cart abandoners, VIPs, lapsed customers) with benchmark metrics for opt-in rates, CTR, and revenue per subscriber. - Use Case: A Shopify merchant wants to add SMS alongside email marketing. Use this Skill to install Postscript, configure compliant checkout opt-in, build a cart abandonment flow, and segment campaigns by purchase history. ## Quick Start Set up a TCPA-compliant SMS marketing program for my Shopify store with opt-in at checkout and a cart abandonment text flow.