---
title: Build commerce recommendation interfaces
slug: o4ue0204
canonical_url: https://docs.coveo.com/en/o4ue0204/
collection: coveo-for-commerce
source_format: adoc
---
# Build commerce recommendation interfaces

In Coveo for Commerce, [recommendation slots](https://docs.coveo.com/en/o9b80563/) are the interfaces that power the [Recommendations](https://docs.coveo.com/en/o53d9587#recommendations) [product discovery solution](https://docs.coveo.com/en/o9cf0524/).

Building recommendation slots allows for cross-selling and upselling opportunities, which can increase your revenue and improve your customer experience.
They can be displayed throughout your Coveo-powered commerce implementation, such as on the home page, [product detail pages (PDPs)](https://docs.coveo.com/en/n8ad7392/), and cart pages.
To accommodate different use cases, Coveo for Commerce provides different types of recommendation strategies, such as "Viewed together" and "Most purchased."

![Recommendation discovery experience | Coveo](https://docs.coveo.com/en/assets/images/coveo-for-commerce/recommendation-discovery.png)

## How to build recommendation interfaces

To build a Coveo-powered recommendation interface, you must:

. [Create a recommendation slot configuration](https://docs.coveo.com/en/o8880463/)

. [Build your recommendation interface](https://docs.coveo.com/en/o8880413/)

## Machine learning and personalization

Behind the scenes, Coveo-powered recommendation slots leverage [Coveo Machine Learning (Coveo ML)](https://docs.coveo.com/en/188/) to provide intelligent and personalized recommendations to your visitors.

More precisely, the recommendations are powered by Coveo ML [Product Recommendation (PR)](https://docs.coveo.com/en/3132/).
For products to be displayed in the recommendation slots, you must create and configure a PR model in your [Coveo organization](https://docs.coveo.com/en/185/).

To learn more about PR models and how to configure them, see [About Product Recommendations (PR)](https://docs.coveo.com/en/3382/).