SKU is short for Stock Keeping unit, otherwise known as a product code. It is a unique identifier that makes it possible to find, search and reference products from lists, invoices, order forms etc. On TradeGecko each variant of a product must have its own unique SKU.
When creating SKUs, keep them simple enough so others will understand them. We recommend using the first area of the SKU to group the products together and use the last part, after the dash, for the unique values.
For example, if you sell hats, your SKUs should look like this:
Sun Hat Red, model no.1 = SH01-R
Sun Hat Yellow, model no.1 = SH01-Y
Sun Hat Green, model no.1 = CM01-G