It's called "ctp" and "ctp" flushing

Price: The displayed price of Xiangpin on the Peanut Shell B2B Foreign Trade Information Platform may vary depending on Xiangpin's participation in activities, purchase quantity, or selected regulations. If the user reaches an agreement with Xiangjia offline, the settlement price of the offline agreement shall prevail. If the user completes an online purchase on the Peanut Shell B2B Foreign Trade Information Platform, the final settlement price on the order settlement page shall prevail.

Flash sale price: The promotional price of a product participating in marketing activities may also vary depending on the purchase quantity or selected specifications, and the final price will be based on the order settlement page price.

Flash sale price: The promotional price of a product participating in marketing activities may also vary depending on the purchase quantity or selected specifications, and the final price will be based on the order settlement page price.