How to Add 'Frequently Bought Together' on Squarespace
"Frequently Bought Together" is one of the most effective merchandising features in ecommerce. Amazon built a significant portion of its recommendation engine on it. Shopify has supported it for years. And Squarespace — until recently — had no way to add it without serious developer work.
That's changed. Here's how to add a proper, data-driven Frequently Bought Together section to your Squarespace store.
What 'Frequently Bought Together' Actually Means
Frequently Bought Together (FBT) is a recommendation system that analyses your real order history and identifies which products your customers most often purchase in the same transaction. It then displays those pairings on relevant product pages, suggesting to new customers what other buyers actually bought alongside the item they're viewing.
This is fundamentally different from manually curated cross-sells. You're not guessing what goes together — your customers have already told you, through their actual purchases. FBT surfaces that signal and amplifies it.
Why It Works So Well
There are two reasons FBT consistently outperforms manual product suggestions:
Relevance: The suggestions are based on real co-purchase data, not assumptions. When 60 percent of customers who buy a candle also buy the ceramic holder, suggesting the holder is genuinely useful — not a sales push.
Social proof: The implicit message of "others also bought this" carries trust. Customers are more likely to add a product when they know other buyers already made that same decision.
Does Squarespace Have FBT Natively?
No. Squarespace 7.1 has no built-in frequently bought together feature. To add it, you need a plugin that can access your order data, process it, and display suggestions on your store pages.
How to Add FBT to Squarespace With UpsellGrow
UpsellGrow includes FBT as one of its three core offer types. Here's how the setup works:
Install UpsellGrow
Add it to your Squarespace 7.1 store via the block editor. No code. Works on Core plan and above. Takes about five minutes to install and connect.
Create an FBT Offer
In the dashboard, click "New Offer," select your target page (Product Page is the most common starting point), and choose "Frequently Bought Together" as the offer type.
Configure the Offer
UpsellGrow pulls from your Squarespace order history automatically. You can:
- Apply the FBT offer to specific trigger products or your entire catalog
- Set a recency weight — "favor last 90 days" or "equal weight across all orders" — useful for seasonal stores
- Exclude specific products from appearing as suggestions
- Set a fallback cross-sell that displays when FBT data is insufficient
Choose the Position
FBT sections work well in several positions on the product page: below Add to Cart, below the product title, and at the bottom of the page. You can also trigger it as a popup when the customer clicks Add to Cart — this is a high-converting position for stores with a higher average price point.
Customize and Publish
Set the widget heading ("Frequently Bought Together," "Others Also Bought," "Complete the Set"), match the design to your store, and publish. UpsellGrow begins displaying suggestions immediately and updates them as new orders arrive.
FBT Beyond the Product Page
UpsellGrow supports FBT offers on five pages, not just the product page. You can show FBT suggestions in the slide-out cart, on the cart page, and on the order confirmation page. Each additional touchpoint increases the chances a customer discovers and adds a complementary product.
What to Expect
In the first few weeks: The suggestions may be limited if your store has fewer than 50 orders in its history. The fallback cross-sell handles this gracefully.
After a month or two: The data becomes richer and the suggestions more accurate. Expect to see average order value improvements in the 15 to 30 percent range as FBT matures.
Ongoing: UpsellGrow updates FBT suggestions automatically. You don't need to manage them — the system learns as your store grows.
Getting It Right
Don't rely solely on FBT for new products. New products have no order history. Use a manual cross-sell until FBT data accumulates.
Watch the analytics. UpsellGrow shows impressions, conversions, and revenue per offer. Check which FBT suggestions are performing and which aren't — the position or the page may need adjusting even if the product pairing is good.
Combine with bundles for maximum impact. FBT suggests products separately. Bundles offer the same products as a discounted package. Running both at once gives customers two different ways to buy the combination.
Ready to Start Earning More From Every Order?
UpsellGrow adds upsells, cross-sells, bundles, and frequently bought together offers to your Squarespace store — across 5 pages and 19 positions. No coding. Setup takes minutes.