patch https://api.webflow.com/v2/sites//products//skus/
Updating an existing SKU will set the product type to Advanced for the product associated with the SKU. The product type is used to determine which Product and SKU fields are shown to users in the Designer and the Editor. Setting it to Advanced ensures that all Product and SKU fields will be shown. The product type can be edited in the Designer or the Editor.
Required scope | ecommerce:write