Docs/Summer Upsell/Introduction

Getting started

Introduction

Summer Upsell is a full-funnel upsell & cross-sell app for Shopify. It ships ten widget types — from product-page bundles to post-purchase offers — on simple monthly plans tiered by order volume, with a Free plan included.

What's included

  • 10 widget types across the product page, the cart and the thank-you page.
  • Three product sources — hand-picked products, Automated recommendations (Shopify's related / complementary products) and credit-based Summer AI powered by ChatGPT.
  • Native Shopify discounts — automatic or code-based discounts managed by our discount function, single-use dynamic codes, or your own existing code. Always applied at checkout, never a hack.
  • Multi-language — translate every widget for any language your store publishes.
  • Analytics — impressions, add-to-carts, conversions and revenue per campaign, with date ranges and period comparison.
  • Non-performing campaign alerts (Pro plan) — campaigns that get views but no sales are flagged for review.

The 10 widget types

Field Type Description
Upsell Product page Single Upgrade, Tier Comparison or Inline Banner — nudges the shopper to a better product next to the buy button.
Cross-sell Product page Grid, Stack or Carousel — related products below the buy box.
Frequently Bought Together Product page Classic FBT checklist with a live total and one Add button.
FBT (Full Width) Product page Full-width card carousel, 4 cards on desktop.
Bundle (Amazon FBT) Product page Amazon-style image strip — trigger product + bundle items joined with +.
Popup Product page Opens after Add to cart. Cross-sell, FBT or Add-ons layout.
Product Add-on Product page Add-on picker (List, Card or Toggle) for warranties, gift wrap, samples.
In-Cart Upsell Cart Recommendations under the cart line items — carousel, stack or grid.
Cart Popup Cart Opens when the shopper clicks Checkout — cross-sell, FBT or Add-ons layout.
Post-Purchase Thank-you page Offer block on the thank-you and order status pages. Picked products go into a pre-filled cart for a second order.

What it looks like on the storefront

Every widget renders inside your own theme, using your fonts and colors by default. These are real captures from a demo store.

Amazon-style Frequently Bought Together strip on a product page, showing the trigger product joined to three complements with + signs and a combined add button
Product page — Amazon-style Frequently Bought Together, rendered directly under the buy button.
In-cart upsell recommendation shown on the cart page under the line items
Cart — an in-cart recommendation sits under the line items.
Post-purchase offer on the order status page with a product, variant picker and an Add button
Thank-you / order status page — a post-purchase offer after the order is placed.

Mobile

Every layout is responsive. Carousels become swipeable, add-on lists stack, and popups turn into a bottom sheet with a large dismiss target.

Cross-sell grid on a mobile product page
Cross-sell on mobile
Cross-sell popup on mobile shown as a bottom sheet after add to cart
Popup on mobile
In-cart upsell on a mobile cart page
In-cart on mobile

How it works

  1. Install the app from the Shopify App Store.
  2. Enable the Summer Upsell app embed in your theme — one toggle, done once.
  3. Create a campaign in the admin — pick a placement, a widget, a trigger and a product source.
  4. Add the matching theme block (e.g. ✨ Summer: FBT Bundle) to the page where you want it to render. Cart Popup needs no block, and Post-Purchase installs from Settings → Checkout → Customize instead.
  5. Publish — the widget picks up the campaign automatically.

Compatibility

  • Shopify Online Store 2.0 themes (themes that support app blocks).
  • Every Shopify plan.
  • Multi-language stores using Shopify Markets / Translate & Adapt.

Next

Installation