Each option keeps its own stock

Size, color or any other choice holds its own quantity. Filters then hide values that are gone.

Blue boot product — stock that follows the size or color a shopper picks

A size-42 boot should sell out of 42 — not the whole product. Option stock does that. You set Quantity on each value, on the product itself.

Open a product. In Product options, turn on Count Stock. Then set Quantity per value. Price can live there too. Save.

Create the options first under Products management → Product options. Filters live next to that list: Products management → Filters. After you count stock, those filters only show values a shopper can buy.

Stock is not on the options catalog. It is on the product. Skip Count Stock and the storefront still treats the product as one pile.

Questions about option stock

On the product. Open a product → Product options → Count Stock → Quantity per value. Not in the options catalog.

After you count stock, Products management → Filters shows only values that can be bought. Check the storefront after you save.

The product stays one pile of stock. Options still show, but they do not keep their own quantity.

Try option stock on your store

Already in the admin. Open a product and turn on Count Stock.

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