Single product promotion is what we often call direct price reduction, that is, directly reducing the price of the product.

①Regarding restrictions on single product promotion discounts: To prevent errors in filling in or the price of a product being lower than the merchant's expectations after multiple discounts are added,

②Can users be restricted from purchasing promotional products: JD.com's limited-time purchase: limit the purchase quantity, that is, the total number of each sku sold.

③Regarding Jingdou's preferential purchase

④Regarding the rounding and deducting of promotional prices.

When setting discounts for promotional products, there will be the situation of dimes and cents. You can set rounding (both cents and dimes are discarded) or deducting cents (only cents are discarded).