Product variants are variations/options of a product, such as the color or the size.
You can create product variants to facilitate product management in your catalog.
In Mirakl, variants share the same "VARIANT_GROUP_CODE" attribute value.
In the back office, from Inventory > Product List, you can notice product variants thanks to the "cube" icons.
When you hover over the icon, a tooltip indicates the number of variants for this product.