Marketing scenario
What this scenario gives you
Higher order value, more complementary products in carts, and better use of the moment when the shopper has already accepted the main purchase.
Embed or cart module with 2-4 add-ons matched to current cart contents, availability, and one-click add-to-cart.
When it is worth using
- stores with accessories, complements, and impulse items
- carts with one main product and natural add-ons
- brands that want to increase AOV without discounting
When to skip it
Do not show cart cross-sell if the cart still needs delivery choice, size, variant, or error resolution. Then an extra shelf may add friction instead of value.
Implementation plan
How to set it up
Read cart contents
Recommendations should come from products, categories, price, and availability in the cart. Random bestsellers feel like advertising, not help.
Limit choice
In cart the shopper is close to checkout, so show only a few strong add-ons. A broad product list lengthens the decision and can delay payment.
Add without sending back
The best variant lets shoppers add the item without leaving the cart. Redirecting to an add-on product page often breaks checkout momentum.
Timing
The cart is good for add-ons, not long browsing
Low-friction add-ons usually work best: accessories, refills, samples, protection products, or something that helps reach free shipping. Save large upsells for the product page.
- Show add-ons near the summary, but not above the main checkout CTA.
- Use short names, price, image, and a simple add button.
- Do not show products that require long comparison.
Matching
The best add-ons come from what is already in the cart
For electronics it may be accessories, for cosmetics minis or complements, for fashion a styling piece. The shared rule is simple: the shopper should immediately understand why this product fits.
- Match products by use case, not only category.
- Exclude unavailable add-ons, long delivery items, or products without photos.
- For carts near a threshold, show add-ons that fit the missing amount.
Example
A cart with a 179 PLN product needs add-ons, not alternatives
If the shopper added the main product, show 3 complements in the 19-49 PLN range and allow adding them without leaving the cart. Do not show a cheaper version of the main product, because it can restart comparison.
- Condition: non-empty cart, main product available, complementary feed relations.
- After add-on selection, refresh cart value and benefit thresholds.
- Measure AOV and share of orders with add-ons, not only clicks.
Measurement
What to measure after launch
Evaluate the scenario by shopper behavior and cart impact, not by impressions alone. These metrics help you see whether the campaign supports revenue or only creates activity.
- AOV
- add-to-cart from module
- orders with add-on
- checkout continuation