1. Applying for a white list of trademarks is to submit the trademarks that the store will apply for or are applying for to Amazon. After Amazon's approval, stores can use this trademark in their own lists.
2. Confirm the UPC code is correct. UPC code does not match the products sold. The store needs to explain which category the product belongs to. If the store has a registered brand on the platform, this should also be told to the seller.
3. Try other brands. Some sellers suggested that you can find some unbranded letter combinations and try to upload them. Now it is easy to encounter this problem in Xindu, not UPC.