Deleting a SKU permanently removes it from a product. If you want to keep the SKU but no longer display it, mark it as inactive. See Deactivate SKUs for more information.
To remove SKUs from a product:
On the Catalog tab, select the product whose SKUs you want to delete.
On the SKUs tab, select SKUs and click Delete Selected SKUs.
Confirm that you want to delete the SKUs.
