Deducting A4 points from Doudian will have a substantial impact on the store's ranking, exposure and sales performance. This is because the Douyin merchant rating system attaches great importance to merchant points and reputation. Merchants with high ratings can obtain platform preferential policies and higher exposure, otherwise they will be restricted and punished. Therefore, merchants should conscientiously abide by the store rules and platform policies, pay attention to ensuring product quality and service quality, and actively resolve user complaints to improve store ratings and promote long-term development.