“Stock Keeping Units”, or “SKUs” refer to the number of items you have integrated between your POS or ERP system and your website.
SKUs are counted for the every variation you have for each product.
For example, if a t-shirt comes in three different sizes, (like small, medium, and large), that counts as three SKUs.
If you send us inventory from your various stores and warehouses, then SKUs are multiplied by these locations.
Using the example above, if you have ten locations, then this t-shirt will count as thirty (3 sizes x 10 locations) different SKUs.