Generate SKU:  Auto Generate the SKU for variants according to the format: Parent SKU - Variation 1 - Variation 2. For example, if there is a T-shirt (white, XL)  its parent sku is T-shirt,  then the sku we generate is T-shirt - white - XL.


When editing a single product

fill out the parent SKU and click on Generate as below





When editing products in bulk

 fill out the parent SKU and click on Generate as below > Click on Save