Cart Cross-Selling

With Cart Cross-selling, you can recommend products that are complementary to the products in the customer’s cart, right before they enter your checkout flow.

Example for Cart Cross-Selling


Cart Cross-selling is the last opportunity to trigger recommendations for your customer before they go through the checkout flow. Cross-sells are products that are Frequently Bought Together with the existing products in the customer’s cart. They are typically displayed directly on the cart page itself, or in a popup right before the user enters the checkout flow. Cross-selling is often accompanied with merchandising strategies like discounting and boosting. As with every Miso API, cross-sell product recommendations are personalized to the individual user and their real-time interactions on your site.

Here’s an example of a customer who is shopping to make a pasta dish:

Although they have already added the basic ingredients to their cart, Miso’s Recommendation Engine can help take their dish to the next level by recommending parmesan cheese, fresh basil, and a red wine. As you can tell, cart cross-selling is a great way to increase average order value (AOV) and revenue.

Do it with APIs

To enable Cart Cross-selling, simply use the Product to Products API and set the buy_together parameter to true. This tells Miso that you want the product recommendations to be complementary to the items in the cart (in contrast to Cart Up-selling, which shows alternatives to the products already in the cart).

In the previous example of the pasta dish, suppose we would like include a cross-selling ribbon on the bottom of the cart page. Here’s how you would make the API call:

POST /v1/recommendation/product_to_products
    "user_id" : "user-123",
    "product_ids" : ["barilla_penne_16oz", "classico_tomato_basil_24oz"]
    "buy_together" : true

    "data" : {
        "products" : [
                "product_id" : "stella_parmesan_8oz"
                "product_id" : "simple_truth_basil_3oz"
                "product_id" : "decoy_cabernet_red_750ml"

(Note: the response has been condensed for illustrative purposes)

In the API request, you can see that we include the buy_together parameter and set it to true. Importantly, with Cart Cross-selling, Miso doesn’t recommend other varieties or alternatives to pasta and pasta sauce.

Additional Resources

For more information on Miso’s Recommendation API, check out the official API Documentation.

For more recipes like this, visit the Recipes page on our Docs site.

Published Date: April 8th, 2022

API Reference


Need more info on the API? Check out our dedicated API page with all the info you could ever want.

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