Track Rebuy Smart Cart and increase conversions
See how Rebuy's Smart Cart and upsells drive revenue, and reach more high-intent shoppers in Klaviyo
The direct answer
What does Littledata do for Rebuy?
Littledata connects Rebuy with your analytics, ad, and email platforms in three ways. It tracks Rebuy Smart Cart interactions in Google Analytics 4, sends orders and Rebuy upsells server-side to Meta and Google Ads, and identifies more shoppers for Rebuy's Klaviyo integration, without customers needing to log in.
- Smart Cart events in GA4 - opens, closes, quantity changes, removals, and switches between subscription and one-time.
- Upsell revenue counted - post-purchase upsells sent as their own event, so ad platforms see the full order value.
- More shoppers identified in Klaviyo - more of your visitors land in the Klaviyo segments Rebuy targets.
- LTV by channel - refunds, repeat purchases, and other post-checkout activity accounted for.
Which Rebuy Smart Cart events can you track in GA4?
Added with a short script in your Shopify theme. Adds to cart outside the Smart Cart are already tracked by Littledata.
| GA4 event | When it fires |
|---|---|
| rebuy_smartcart_shown | Smart Cart is shown or opened |
| rebuy_smartcart_hidden | Smart Cart is hidden or closed |
| rebuy_smartcart_item_increase | An item quantity is increased |
| rebuy_smartcart_item_decrease | An item quantity is decreased |
| rebuy_smartcart_item_removed | An item is removed from the Smart Cart |
| rebuy_smartcart_switched_to_subscription | An item is switched to subscription |
| rebuy_smartcart_switched_to_onetime | An item is switched to one-time |
What can you learn from Smart Cart data?
Combined with Littledata's server-side Shopify tracking, Smart Cart events show how the cart changes buying behavior.
- Cart reach - how many shoppers open the Smart Cart, and how many of them go on to buy.
- Subscription switches - whether shoppers who switch an item to subscription check out with it.
- Upsell value - whether shoppers who pick an upsell have a higher average order value.
- Quantity gains - how many units sold came from quantity increases in the cart.
Identify more high-intent shoppers
Littledata's Klaviyo connection works with Rebuy's Klaviyo integration to identify more opted-in users.
- Identify more users in Klaviyo segments
- Target high-intent shoppers based on browsing behavior and checkout activity
- Smarter targeting across Rebuy's AI personalization, upsells, and cross-sells
See how Skinfix used Littledata and Klaviyo to get 6x Klaviyo flow revenue.
Improve retargeting across your marketing channels
Littledata enhances signals across your marketing stack to decrease CAC and expand your audience.
- Sync first-party data, including Rebuy upsells, with Google Ads and Meta
- Optimize for new vs returning customers with separate purchase conversions
- Replace Google Tag Manager for Shopify tracking
- Purpose-built for Shopify and Shopify Plus
How do I set up Littledata with Rebuy?
Install Littledata
Add Littledata from the Shopify App Store and connect GA4, Meta, Google Ads, and Klaviyo.
Add the Smart Cart script
Paste the script from the help center into theme.liquid, or an asset loaded by your theme. It listens for Smart Cart events and passes them to GA4.
Check the events
Use GA4's Realtime report to test. Events appear under Reports > Engagement > Events within 24 hours.
Compare shoppers
Build a segment of users with rebuy_smartcart_shown and compare their purchase rate with users who didn't open the cart.
Need a hand with the script? The Smart Cart script needs developer access to your Shopify theme. Get in touch if you need help implementing it. See the Smart Cart guide