Hello
I am adding an item from sales to the product of Shpoify.
When add an item, I want to add a number of variants. These variants can be other items's variant.
In short way, I want to know how I can use other Item as a variant.
I had attached the example, I want to add item like image.
As you can see, it had added a item "WERM-19070", but shopify variants has 2 items "WERM-19070" and "W-WERM-19070"
