In recent years，driven by disruptive growth of digitalization，brands have continuously increased their advertising investment on digital media，and required quantifiable measurement on the effectiveness at the same time. By utilizing Ocean Engine platform （including Douyin and Xigua，owned by ByteDance），brands established growth mechanism and extended its commercialization capability through full linkage from advertising to conversion. The Marketing Technology Team of Ocean Engine has worked closely with Kantar Worldpanel （a CTR Service in China） to evaluate the conversion effectiveness from omni-channel purchase of their short video platforms. The study concluded that the value of Douyin not only resides on large active monthly user base and their stickiness，but also reflects on the impact of buyers，including reaching and converting young buyers，retaining loyal buyers and switching buyers from competitors，as well as upgrading buyers’ consumption.