If you want to add a new product based on an existing one on your admin panel, you need to follow these steps:
Go to the Products > Select a product > Duplicate
Then choose whether you want to copy the product with or without images and press Duplicate
You should see the following information:
Duplicated products will have SKUs as follow:
The first three letters of the product name and the parameters separated by “-“. If the SKU data already exists, the system will automatically add a number at the end.
For example, a Shoplo Sweatshirt, size X, colour black will have SKU swe-x-black