About product SKUs
A SKU is a unique code identifier for a product and can be used for both products and variations. SKUs can also include additional characters like &, +, -, ., and _.
To add a SKU to a product or variation:
Navigate to your Product or Variation edit form
Enter your SKU code into the field called "SKU"
FAQs
Can I add a SKU to an order?
Once a SKU is assigned to a product or variation, it will automatically appear alongside that item whenever it’s included in an order, both on the order page and in relevant reports.