SMS list growth focuses on building a valuable subscriber base through compliant opt-in collection methods. List growth tactics: - Website popups - Checkout opt-in - Keyword campaigns (Text JOIN to...) - QR codes (in-store, packaging) - Social media promotion - Email cross-promotion - Contests and giveaways - Loyalty program integration Incentives that work: - Discount codes (most common) - Free shipping - Early access - Exclusive content - Contest entries Best practices: - Clear value proposition - TCPA-compliant opt-in - Double opt-in recommended - Set expectations on frequency - Immediate value (welcome discount) Growth benchmarks: - Website popup: 2-5% conversion - Checkout: 5-15% conversion - Keyword: 20-40% conversion