How to use product variant attributes and attributes value in odoo
In a retail environment you must have the variant option enabled for products, this only brings more simplistic approach product management. Mostly variants are identified…

In a retail environment you must have the variant option enabled for products, this only brings more simplistic approach product management. Mostly variants are identified by size and color, If there are two(2) different sizes and two(2) different colours this means you have in total four(4) products with different internal reference and inventory

Navigate guide Purchase>>Products>> Products.

Use below screengrab for reference.