Wish’s requirements for UPC/EAN

When filling the product content in Wish backend, the entered Unique ID is the corresponding SKU in SoldEazy and it is required to fill in. The optional content includes a 12-digit UPC, but it can also be omitted. There is a corresponding UPC part in SoldEazy, but it is not required, you can leave it blank, or you can fill in twelve '0'. Wish does not accept the EAN number.