TikTok Shop fulfillment is no longer the “Wild West”—it’s a metrics-driven gauntlet. Late shipping is the fastest way to get ghosted by the algorithm. This guide explains the March 31 logistics shift and why staying domestic is non-negotiable amid de minimis crackdowns. We advocate for a single inventory pool to prevent “stockout nightmares” and explain how neutral packaging protects your shop’s reputation. With a 100% same-day shipping guarantee, we help you maintain the high VTR and OTDR scores needed to keep the “For You” page feeding your viral growth.