Generally speaking, the winning information will be displayed on the bottle cap or bottle, and consumers need to take the bottle cap to the store to exchange it when buying. If the seller records this information when selling the goods, it is possible to know the winning situation by querying the records.
But it also depends on the seller's business habits and specific sales policies. If sellers don't record this information, or the sales policy doesn't contain winning information, then they may not know which products won the prize.
In addition, in order to protect consumers' privacy, some merchants may take measures, such as not recording the winning information, or only inquiring about the records when consumers come to win the prize. In this way, even if the seller knows that he has won the prize, he may not know which bottle of wine has won the prize.
Generally speaking, whether the seller can know that a bottle has been bought in Guoyuan V3 depends on whether this information is recorded, as well as the specific sales policies and operating habits.