SKU (stock keeping unit) is a variation of a certain product. That's why every SKU is associated to a product. For example, a shirt is a product that has several SKUs, that are the color and size variations for the shirt.
Follow the step by step to add your products using Admin :
Follow the step by step to create your products using spreadsheet:
Adding products through ERP can be done in 2 ways:
Quick Catalog Integration, that is, an express integration, only with the basic and necessary flows.
Full Catalog Integration, that is, a complete integration, with most of the existing flows.
See which of the integrations best suits your store and your workflow.