Have some attributes not affect stock, while others do

[neonsuns]

Hello,

 

I am starting a business to sell e-liquid online. I have multiple flavors that come in two different bottle sizes (15 ml & 30 ml) and 6 different nicotine strengths. Every bottle of e-liquid is made to order.

 

For each flavor, I would like to have my stock for the two different bottle sizes but have the nicotine strength not affect the stock at all.

 

For example:

 

I have 50 bottles of strawberry banana in the 15 ml size

50 bottles of strawberry banana in the 30 ml size

 

Customers can choose their size and nicotine strength, but since I put the nicotine in while I make the bottle, I don't want it to affect stock.

 

Is there any way to do this? If you need any clarification on what I'm trying to do please ask.