Checkout Upsells
Add one-tap upsells and a reward-progress bar right inside your Shopify checkout — the last moment to grow the order before your customer pays. A Shopify Plus feature, native to Boost.
What it is
Checkout Upsells put offers inside the checkout itself — the highest-intent page in your store, where the customer has already decided to buy. As they check out, Boost shows a complementary product they can add in one tap, and a progress bar showing how close they are to the next reward. Because it runs inside the checkout, this is a Shopify Plus feature — Shopify opens checkout customization to Plus merchants. (Not on Plus? Post-Purchase Upsells give you the same after-the-sale lift with no Plus requirement.)The problem it solves
Checkout is the highest-intent moment in your entire store — the customer has their card out and has decided to buy. A default checkout does nothing with it:- The last chance to grow the order goes to waste. A plain checkout takes the order as-is and processes payment. The one moment a customer is most committed passes without a single offer — money left on the table at the exact point they’re most likely to say yes.
- Bolt-on checkout apps add friction. A single-purpose checkout upsell app means another install and another bill, and a clumsy one makes the customer re-enter details or breaks the flow — costing you the sale you already had.
- Disconnected offers feel random. An upsell that doesn’t know what’s in the cart, or what reward the shopper is chasing, lands as a generic interruption instead of a relevant nudge.
How it works
The upsell appears inside the checkout automatically, tuned to what the shopper is buying — no extra step, no leaving the page. 1. The shopper reaches checkout. They’ve added their items and started to pay — the highest-intent moment in the journey. 2. Boost shows the right offer. A complementary product appears, plus a reward-progress bar — “you’re $15 from free shipping” — so the shopper sees both what to add and why. 3. One tap adds it. The product drops into the order with no re-entry of details, and any qualifying discount applies automatically. The checkout flow never breaks. You choose how the upsell is picked — let AI recommend dynamically, feature your best sellers, or hand-pick the products — set the discount type, and control where the upsell block sits, all in a setup wizard with no code.What you get
- Incremental revenue at the highest-intent moment. An upsell at checkout reaches the customer when they’re most committed — the point in the journey where a relevant offer is most likely to land.
- Bigger orders with zero added friction. One-tap add, no re-entered details, no broken flow — the order grows without ever risking the sale you already had.
- Offers that fit the cart. AI, best-sellers, or hand-picked — the upsell knows what’s in the cart and what reward the shopper is chasing, so it reads as helpful, not random.
- One engine across your whole store. The same Boost logic running your cart, bundles, and post-purchase runs your checkout too — consistent rewards and offers everywhere, not a disconnected single-purpose app.
Works with your stack
- Do I need Shopify Plus? Yes. Checkout Upsells run inside the checkout, which Shopify opens to Plus merchants. If you’re not on Plus, Post-Purchase Upsells deliver the after-the-sale lift with no Plus requirement.
- Is this an add-on? No — Checkout Upsells are part of Boost, not a separate checkout app to install, wire up, and reconcile. One platform, one bill.
- Will it slow down or break my checkout? No. The offer adds in one tap with no re-entry of details, so the checkout flow stays intact and fast.
- Will it mess up fulfillment? No. An added upsell is a real line item, so your 3PL, inventory, and reporting see the true contents of every order.
Ready to grow the order at checkout?
Catch your customer at the highest-intent moment in your store — and turn the last step before payment into one more yes.Continue to Explore
Post-Purchase Upsells
The after-the-sale offer — same lift, no Shopify Plus required.
Cart
The best cart on Shopify — where the reward bar and upsells start.
Moneyboard
See the revenue your checkout upsells drive, in plain dollars.