> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://opus.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Upsells

Upsells is a block within the cart drawer that displays one or multiple complementary/related products of the added main products. Merchants can use this to encourage customers to purchase a more expensive item, add-ons, or upgrades to enhance their original purchase.

Customers can add these items to their cart with just a few clicks, increasing the chances of additional sales.
![](https://storage.crisp.chat/users/helpdesk/website/-/c/4/f/f/c4ff3b9cb985700/thibae1bfchb0acb3taan_bkiinm.gif =573xauto)
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