How to Add Product Recommendations to the Shopify Cart Drawer

Most Shopify stores miss one of the best cross-sell opportunities they have: the cart drawer. Here's how to add a recommendation that catches shoppers at exactly the right moment.

The best place to add a cross-sell recommendation in your Shopify store isn't the product page — it's the cart drawer. When someone clicks "Add to Cart" and the drawer slides open, they've just confirmed they're buying. That's the highest-intent moment in the entire shopping session, and most stores leave it completely blank. Our Shopify cart drawer upsell guide covers how to set this up step by step.

Stores that add a single relevant recommendation inside the cart drawer often see a real lift — most cross-sell placements land somewhere in the 5–15% attach-rate range, and the cart drawer tends to sit at the higher end. Let's look at why, and how to set it up.

Why the cart drawer outperforms the product page

On the product page, a shopper might still be evaluating. They haven't fully committed. But the cart drawer opens after they've clicked "Add to Cart" — the buying decision is made. Their mental state has shifted from "should I buy this?" to "what else do I need?"

That shift changes how they respond to recommendations. Instead of feeling like a sales pitch, a relevant suggestion in the cart drawer feels like a helpful reminder. "Oh right, I should probably grab that too."

Popup modals and post-checkout upsells try to recreate this moment, but they're intrusive. The cart drawer is already open. Adding a recommendation there doesn't interrupt anything.

What does a good cart drawer recommendation look like?

Keep it simple. One product recommendation. A small image, the product name, the price, and an "Add to Cart" button. That's all you need.

Don't show a carousel of four options. Too many choices create decision fatigue and the shopper ends up adding nothing. One well-chosen product outperforms four generic ones every time.

The recommendation should relate to what's already in the cart. If someone has a coffee grinder in their cart, suggest coffee beans or a cleaning brush. Not your bestselling candle.

Step-by-step: Adding it with Dropr

Dropr adds a cross-sell block inside the cart drawer using Shopify's theme app extension system — no code required.

Step 1: Install Dropr from the Shopify App Store. The install takes about 30 seconds.

Step 2: In your Shopify admin, go to Online Store → Themes → Customize.

Step 3: In the theme editor, use the top dropdown to navigate to the Cart page or look for a "Cart drawer" section in the left sidebar (this varies slightly by theme).

Step 4: Click Add block inside the cart drawer section and select the Dropr cart block. Position it above the checkout button.

Step 5: Save the theme. The block is now live but won't show until you configure pairings.

Step 6: Open the Dropr app to review the recommendations it generated for each product, and adjust any pairing you want to change. A good place to start is your 10 best-sellers — confirm the cross-sell shown with each one makes sense.

Total time: about 3 minutes, plus however long you spend reviewing your pairings.

What if my theme doesn't have a cart drawer?

Some older or more minimalist Shopify themes use a full-page cart instead of a sliding drawer. In this case, you can add the Dropr recommendation block to your cart page using the same block approach — navigate to the Cart page in the theme editor and add the block there.

The conversion rate is slightly lower than a cart drawer (because the shopper had to navigate to a new page), but it's still significantly better than not showing a recommendation at all.

How Dropr decides what to show

Dropr auto-generates a recommendation for each product, matched to your catalog and your store's look, so you're not starting from a blank slate. You stay in control: open the app and you can override any pairing to show the exact companion product you want.

When a shopper has Product A in their cart, Dropr shows the cross-sell tied to Product A. If the cart has multiple items, it shows the recommendation for the most recently added product.

Measuring whether it's working

Dropr's dashboard shows you exactly how much revenue came through cart drawer recommendations each month. Not just how many times the recommendation block was clicked — how many of those clicks turned into paid orders.

This distinction matters. Click rate tells you if the recommendation is attractive. Revenue attribution tells you if it's actually adding to your bottom line.

A healthy cart drawer recommendation sees a click-through rate of 4–10% and conversion on those clicks of 40–70% (these shoppers are already buying something, after all).

Common mistakes to avoid

Showing too many recommendations is the most common mistake. One product, clearly presented, almost always beats a row of four.

The second mistake is showing the same recommendation regardless of what's in the cart. A blanket "you might also like our bestseller" is far less effective than a relevant pairing. Spend a few minutes confirming the pairings for your top products make sense — it's worth it.

FAQ

Does the cart drawer recommendation work on mobile?

Yes. Cart drawers on mobile behave like a bottom sheet that slides up. Dropr's recommendation block is designed to be fully functional on small screens — the product image, name, price, and add-to-cart button all display cleanly within the mobile cart drawer.

Can I show a different recommendation for each product?

Yes — that's the intended behavior. Dropr generates a recommendation for each product, and you can override it to set the specific cross-sell you want per catalog item. When Product A is in the cart, the shopper sees the recommendation tied to Product A. When Product B is in the cart, they see B's recommendation.

What happens if the shopper already has the recommended product in their cart?

Dropr automatically detects this and hides the recommendation, so shoppers never see a suggestion to add something they've already added.