I would like to know if it is possible to set the stock in an Odoo store based on an attribute.

I am selling a digital product. It has an attribute A with 3 variants.
And an attribute B with about 30 variants.

The customer selects the product. Chooses a variant among the 3 of attribute A. Then he must select a variant among attribute B. But there I wanted to limit the stock to 12 per variant of attribute B

Is it possible?

Thank you very much