> 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/menu/customisations/product-upsells.md).

# Product Upsells

Product upsell functionality allows venues to **promote complementary items** during the ordering process.

An **upsell is linked directly to a specific product** within the system. The upsell will **only appear** when the corresponding trigger product is added to the basket.

> For example:
>
> If a customer adds coffee to their basket, the system may prompt them with a suggestion such as:
>
> *"Would you like to add a dessert?"*
>
> Relevant dessert items (e.g., brownies, pastries) will be shown as upsell options.

Upsells are not applied as modifiers to the product. Instead, they are put through as completely **separate products** when sold.


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