TikTok Shop’s gross merchandise value (GMV) surpassed $50B globally in 2025, yet 74% of brands fail to scale past $100k monthly because they rely on generalist marketing agencies. The top tiktok shop agencies differentiate themselves through four engineering-grade competencies: real-time attribution, creator network density, live stream reliability, and supply chain sync. This guide provides a technical framework to audit and select partners—no generic advice. What Separates