> For the complete documentation index, see [llms.txt](https://docs.platter.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.platter.com/checkout/checkout-extensions/in-checkout-cross-sells/what-is-a-cross-sell-group.md). # What is a Cross-Sell group? ## What is a Cross-Sell? **Cross-selling** is a sales technique where customers are encouraged to purchase complementary or related products in addition to the items they’re already buying. The goal of cross-selling is to increase the total value of a customer’s order by offering products that enhance or complement the primary purchase. For example, if a customer is purchasing a laptop, cross-selling would suggest additional items like a laptop case, external mouse, or an extended warranty. Cross-selling can occur at various stages of the customer journey, including **during checkout** or as a **post-purchase offer**. ## What is a cross-sell group? A **cross-sell group** is a set of products or collections that are recommended to customers during the checkout process. These products are complementary to the items already in the customer’s cart and are intended to increase the average order value (AOV) by encouraging the customer to add additional items. Cross-sell groups can be used in different stages of the customer journey, including **in-checkout** or **post-purchase**, to offer relevant product suggestions without disrupting the checkout flow. ## Why use cross-sell groups? Cross-sell groups help merchants to: * **Increase average order value (AOV)** by suggesting complementary products that customers may have overlooked. * **Provide a better shopping experience** by recommending items that are relevant to the customer’s purchase, making it more likely they’ll find value in the additional products. * **Automate upselling** by setting up pre-configured cross-sell groups that show the right products at the right time. For example, if a customer adds a camera to their cart, they might be shown cross-sell products like memory cards, camera bags, or extra batteries from a pre-configured cross-sell group. *** ## How to create custom cross-sell groups? {% embed url="" %} --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.platter.com/checkout/checkout-extensions/in-checkout-cross-sells/what-is-a-cross-sell-group.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.