

Cross-Channel Ad Attribution for Ecommerce
Fullcart uses Shopify as the single source of truth for revenue and maps each order back to the ad touchpoints that influenced it. AI builds a unified attribution picture across all your ad platforms so you can see true channel contribution and allocate budget with confidence.
Why This Matters
Every ad platform takes credit for the same conversions, making it impossible to know which channels truly drive sales. Ecommerce brands end up double or triple counting revenue, leading to inflated ROAS numbers and misallocated budgets across Meta, Google, and TikTok.
The Solution
Here's how Fullcart helps you handle all sorts of tasks when it comes to running your store.
- Unified Order Attribution
- Every Shopify order is matched to its ad touchpoints across Meta, Google, and TikTok, eliminating double-counted revenue.
- Multi-Touch Attribution Models
- Compare first-touch, last-touch, and linear attribution models to understand how each channel contributes to the customer journey.
- Platform Reporting vs Reality
- See exactly how much each platform over-reports conversions by comparing self-attributed data against Shopify-verified orders.
- Incremental Lift Analysis
- Estimate the true incremental revenue each channel drives by analyzing what would have happened without ad spend.


Get Started with AI
Try a sample prompt on Fullcart to see it in action.
How much total revenue are my ad platforms claiming vs what Shopify actually recorded?
Shows the total over-reporting gap by summing all platform-claimed conversions against actual Shopify revenue.
Which platform is over-reporting conversions the most?
Ranks Meta, Google, and TikTok by the gap between self-reported and Shopify-verified conversions.
What percentage of my Shopify orders can be attributed to a specific ad click?
Calculates the share of orders with clear ad attribution vs organic or unattributed orders.
How does first-touch vs last-touch attribution change my channel ROAS?
Compares ROAS across attribution models to show how channel credit shifts depending on the model used.
Are there orders being claimed by multiple platforms simultaneously?
Identifies double-counted orders where more than one platform claims credit for the same Shopify purchase.
Connect your entire ecommerce stack
Fullcart integrates with the platforms you already use—Shopify, Meta Ads, Amazon, and more—so you can manage everything from one place.
Connect your storeExplore More Use Cases
Optimize Your Ad Spend with AI
Fullcart pulls data from Meta, Google, and TikTok into a single view and uses AI to identify where your ad dollars are working and where they are wasted. Get actionable recommendations on budget reallocation, creative refresh, and audience targeting.
Optimize Facebook & Instagram Ad Campaigns
Fullcart connects your Meta Ads account directly to Shopify so you can see true campaign performance based on actual orders. AI analyzes your campaigns in real time and provides specific recommendations to improve targeting, refresh creatives, and scale winners.
Analyze Ad Creative Performance with AI
Fullcart analyzes your ad creative performance across Meta and Google, breaking down results by format, messaging angle, visual style, and audience. AI identifies patterns in your top performers and provides data-driven recommendations for your next round of creative production.
Manage Google Ads for Your Ecommerce Store
Fullcart syncs your Google Ads data with Shopify to provide a clear picture of which campaigns, products, and keywords drive real revenue. AI monitors your campaigns continuously and delivers specific recommendations to improve performance and reduce wasted spend.
Run High-ROAS TikTok Ad Campaigns
Fullcart integrates your TikTok Ads data with Shopify to cut through attribution noise and show real campaign performance. AI provides creative strategy recommendations tailored to TikTok's format and helps you scale what works while cutting what doesn't.
Build Smarter Retargeting Campaigns
Fullcart uses Shopify customer and behavioral data to build intelligent retargeting segments based on actual purchase intent. AI recommends which audiences to retarget, what messaging to use, and how much budget to allocate to each segment for maximum conversion at the lowest cost.
Ready to put this to work?
Fullcart uses Shopify as the single source of truth for revenue and maps each order back to the ad touchpoints that influenced it. Get started with Fullcart for free.
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