> For the complete documentation index, see [llms.txt](https://docs.bossithq.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bossithq.com/stock/stock-structure-approaches/stock-multiplier-for-customisations.md).
# Stock Multiplier for Customisations
Customisations are often reused across different products, with varying portion sizes for the customisation options. In cases like this, we use the Stock Multiplier within the product's customisation.
> **Example**
>
> Pepperoni as a Topping
>
> Stock Product:
>
> * Pepperoni Slices
>
> Stock Item:
>
> * Pepperoni Slices 1g
>
> We can use the Stock Multiplier to define the portion size of Pepperoni used in a specific product:
>
> * Pepperoni Pizza — Pepperoni stock multiplier to 60 (i.e., 60g).
> * Meat Lovers Pizza — Pepperoni stock multiplier to 55 (i.e., 55g).
> * Deluxe Pizza — Pepperoni stock multiplier to 50g (i.e., 50g).
To set the stock multiplier value:
1. In the [**Admin Portal**](https://admin.gobossit.com/), navigate to **Menu** > **Products**.
2. Select relevant **product**.
3. Go to **Customisations** tab.
4. On the relevant **customisation**, click the **edit** icon for the products.
5. Set the **stock multiplier** value.
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