不共用,一个upc只能用一次,其他产品再用会变成跟卖的形式。如果是在亚马逊用的upc,沃尔玛新上架这个产品,你可以用亚马逊的upc。
No, a UPC can only be used once. If it is used on other products, it will become a form of piggybacking. If you use the UPC on Amazon and Walmart newly lists this product, you can use the Amazon UPC.
They should be shared. They don’t conflict with each other. One is mainly offline, and the other is a physical store.