The full name of CCR in Chinese is "Consumer Negative Feedback". According to the "Consumer Negative Feedback (CCR) Introduction Document" released by Douyin E-commerce Center, this data is defined as a comprehensive indicator to measure product quality, merchant service and logistics service levels.

The CCR indicator covers multiple channels of consumer feedback such as order evaluation, after-sales, complaints, and online consultations. The calculation formula is: number of valid negative feedback orders/number of valid payment orders * 100% (all indicators exclude abnormal orders and abnormal evaluations). In short, the system automatically captures negative expressions of consumers. The more negative expressions, the higher the CCR indicator.