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Amazon does not show Frequently Bought Together (FBT) offers because they look nice. They show them because they work. The average order value lift from a well-placed FBT widget runs between 10% and 35% depending on the product category and how the bundle discount is framed.
The mechanic is simple: a customer lands on a product they already want. Below the main offer, they see two or three complementary products bundled at a slight discount. One click adds all of them to the cart. The friction is near zero. The perceived value is high. The conversion happens before the customer has time to second-guess it.
Shopify does not include this natively at the level Amazon runs it. You need an app. This guide walks through exactly how to set it up using Libautech Bundles and Upsell — the same app that powers FBT offers for thousands of merchants.
One Shopify store. The Libautech Bundles and Upsell app installed from the Shopify App Store. That is it. No theme editing, no developer required.
Go to the Shopify App Store and search for Libautech Bundles and Upsell, or go directly to the listing. Install the app. It connects to your store in one click and does not require any manual theme code.
Inside the app dashboard, navigate to the offers section and create a new offer. Select Frequently Bought Together as the offer type.
You will then choose the offer trigger — this is the product the widget appears on. You can set it to a specific product, a collection, or all products sitewide.
The app gives you two options for product selection:
AI Recommend — the app automatically pulls in the most relevant upsell products based on purchase history and product data. This works well if you have a large catalog and do not want to manually curate every bundle.
Manual selection — you pick the exact complementary products yourself. This is the better choice when you know your customers and you want full control over what gets shown next to your hero product.
For most clothing and fashion merchants, manual selection delivers stronger results. You know which items complete the outfit. The AI does not always.
This is the step most merchants skip, and it is the step that determines whether the widget converts or gets ignored.
Always add a discount. A 10% discount when all three products are purchased together is enough to make the bundle feel like a deal without destroying your margin. The number does not need to be dramatic. It needs to exist. A bundle with no discount is just a product recommendation. A bundle with a discount is an offer.
Set the discount to apply only when all items in the bundle are selected. This creates the incentive to keep all three in the cart rather than deselecting the cheaper items.
The trigger product — the one the customer is already on — can be either pre-selected or hidden from the FBT widget.
The recommended setup: pre-select only the trigger product. The first item in the bundle is checked by default (the product the customer is already viewing). The next two items are unchecked. The customer actively selects the additional products, which creates a small but meaningful sense of agency. They feel like they chose the bundle. That framing converts better than showing everything pre-selected, which can feel like you are trying to force the cart.
Libautech Bundles and Upsell offers two main layouts for the FBT widget:
Standard horizontal — three products in a row with images, names, prices, checkboxes, and an add-to-cart button. This is the most common format and works well on both desktop and mobile. It is the closest match to Amazon's current FBT layout.
Legacy layout — a wider, full-width desktop format that mirrors the older Amazon FBT style. Better for stores with large product images and wider content areas.
Choose the one that fits your theme. Both support full customization of colors, fonts, and button styles so the widget blends with your store's design rather than looking like a third-party plugin.
Customize the section title, font, button color, and background. The FBT widget should feel like it belongs on your product page, not like it was bolted on. Stores that take five minutes to match the styling see meaningfully higher engagement than stores that leave it at the default.
Change the section title from the generic "Frequently Bought Together" to something that fits your brand voice. "Complete the Look", "Wear It With", or "Outfit It" all perform well in fashion verticals.
The FBT offer goes live on your product pages immediately. You do not need to republish your theme or make any manual changes.
Watch the following metrics in the first two weeks:
Average order value on product pages where the FBT is active versus pages where it is not. Bundle conversion rate — how often a customer who sees the widget adds all items to cart. Which product combinations are being selected together most frequently — this data tells you where to focus your manual bundle curation next.
For most stores, a properly configured FBT offer with a bundle discount lifts AOV by 8–15% within the first 30 days.
No discount on the bundle. Without a discount, there is no reason for the customer to add all three items. A recommendation without an incentive is not an offer.
Too many items in the bundle. Two or three is the right number. Four or more creates decision fatigue and the widget starts to look cluttered on mobile.
Irrelevant product combinations. A jacket bundled with a matching belt converts. A jacket bundled with a phone case does not. Bundle products that customers would naturally consider buying together on the same shopping trip.
Ignoring mobile layout. More than 70% of Shopify traffic is mobile. Preview your FBT widget on a phone before you launch it. The horizontal layout stacks vertically on small screens — make sure the images and text are readable.
The Libautech Bundles and Upsell app is available on the Shopify App Store. Installation takes under two minutes and the first FBT offer can be live on your product pages the same day.
If you need help with the setup or want a custom bundle configuration for your store, reach out directly.
