The ASIN code is automatically generated by the Amazon system and does not need to be added by the seller. The ASIN code is equivalent to a unique product ID, which is unique on the Amazon platform. One ASIN code corresponds to one SKU. The ASIN code can be used to query products on the platform front end and the seller’s store backend.
The ASIN code is displayed in the product details page, usually in “Product Details” or “Product Information”.
So will the ASIN code change? Generally speaking, once the seller has published the product details page, the ASIN code will not change even if the product details page is adjusted and modified later. However, when the product details page created by the seller is the same as that of other sellers on the platform, and the description is similar, the product details page may be automatically merged by Amazon, and the ASIN code will also change.
SKU is the basic unit for measuring the inventory in and out of goods. It consists of numbers or letters, or a mixture of the two. SKU can generally be written by the seller. When a product has different colors, sizes, etc., there are multiple SKUs. For example, a pair of shoes has two colors, red and white, and each color has four sizes, S, M, L, and XL. This pair of shoes has eight SKUs.
Amazon does not have strict requirements on the rules for writing SKUs. When sellers list products, the “SKU” column can be filled in by the sellers themselves. If it is not filled in, the Amazon system will automatically assign it. However, in order to facilitate future product management, sellers are advised to write SKUs according to their own management habits or product characteristics.