Terminology

What is the difference between a Parent SKU and a Seller SKU?

A Seller SKU is a unique identification code of each item that you have. It allows you to easily identify where your product is in your own warehouse.

A Parent SKU groups same items of different size variations together. It usually follows the Seller SKU with the smallest size.

What is a SKU config and a SKU simple?

A SKU config is one product style or color. A SKU simple is a size variant of an SKU config.