How to order product categories
Sunshine displays product categories in the numerical/alphabetical order of their Slug since this is never visible to clients. So we want to edit the Slug value for each of our categories. In the example screenshots, we prefix everything with numbers and then names.
Go to Sunshine > Product Categories.
To edit the Slug, hover over over a category and click “Quick Edit”.
Change the “Slug” to any value you want, knowing that it puts numbers first lowest to highest, then letters in alphabetical order.
Alternatively, you can use this 3rd party, free taxonomy ordering plugin.