First, let me explain the meaning of these two terms:

1: UPC code is a barcode for products developed by the Uniform Code Council of the United States. It is mainly used in the United States and Canada. We can see it on products imported from the United States.

UPC code (Universal Product Code) is the earliest barcode to be used on a large scale. Its characteristic is that it is a barcode with a fixed length and continuity. It is currently mainly used in the United States and Canada. Due to its wide range of applications, it is also called a universal barcode. UPC code can only be used to represent numbers, so its code set is the numbers 0~9.

2: EAN code (full name in English: European Article Number) consists of a prefix code, a manufacturer identification code, a product item code and a check code. EAN code is a barcode for products developed by the International Article Numbering Association and is used worldwide. You need a UPC or EAN to upload any listing on Amazon [UPC and EAN on the product upload interface have a red snowflake symbol].