DV Update List Product on Sells if Stock is 0

Hi,

I have a file with 2 sheets (Stock & Sells).
On Stock sheet, i have a table with all my products and the remaining stock.
On Sells sheet, i have a table with a column "Product" in which i want to make a data validation list based on Products available on Stocks.
If Product on Stocks are available, i want it to appears on DV list, but if Product is sold and product on Stock is equal to 0, i want that the product doe not appears anymore on futur DV list on Sell sheet.

Please find attached my excel file.

Thank you for your help.

Regards,
Vij401