SKU stands for Stock-keeping unit. A Product SKU is a string representing the Product unique identifier in your Ecommerce shop: for example SKU for books might be the ISBN identifier for this book such as 8120725247. A given Product might change its name overtime, but the product’s SKU should always be the same. With Ecommerce Analytics, you can track Product SKUs, Product Names and Product categories and get interesting analytics reports about your online ecommerce shop performance.