Display only sizes in stock
On Afrikrea, you can offer your products in "stock" if the products already exist, or "Made to order" if they are made after the order has been placed.
We recommend putting your products "to order" as much as possible. You will find more information in the following article: I don't have stocks, can I still sell?
If you have a stock of products to sell
In the "Products" section of your account, select the product of your choice, and click on "in stock".
Uncheck the option "when ordering", and then enter the quantity you have in stock for each size.