WooCommerce - Configuring SKUs
To configure SKUs in WooCommerce:
From within WooCommerce, Click on Products
Edit the product of choice
Scroll down to Product Data. The SKU number can be defined under the General Settings tab
Note: Uniqueness is not enforced for WooCommerce SKU numbers. Care should be taken not to create duplicate SKUs.
Note: If you will be using product variations, leave the parent SKU blank and only enter a SKU for the child variation. DropStream will pull the parent SKU first and then append the child SKU. If the parent SKU is blank, only the child SKU will be pulled.