When trading goods, there may be some abnormal phenomena, or the goods are damaged and the orders are cancelled. This phenomenon is very common in the process of commodity trading, because there is a certain probability of failure in making something, not 100%, so there will be a phenomenon of withdrawing orders when encountering some defective products. We usually don't cancel orders often, but we may cancel them for other reasons. However, if the commodity exchange withdraws orders frequently, can it be repeated without any restrictions? As we all know, if we want to cancel the order when buying some goods, we must meet certain requirements, so there are many restrictions on the cancellation of the order. Therefore, for commodity exchanges, there are restrictions on canceling orders, probably hundreds of times. After all, this number is not very small, because when something happens to us, it may be caused by system bugs or other factors. Therefore, there are certain restrictions on commodity exchange, especially on the number of commodity withdrawals. After all, this data is related to the reputation and prestige of this commodity exchange, which is very important for any place and any exchange. Some well-known and prestigious exchanges may have more exit restrictions. Simply put, it is equivalent to many supermarkets in our lives. If they have too many such phenomena, it must mean that their daily turnover rate is high. Therefore, in this case, there will be many reasons and times for returning goods, which is hard to avoid, because some things are tailored according to everyone's characteristics, and there may be many cases where others bought them on their behalf, so there will be inappropriate phenomena and the phenomenon of returning orders.