Causality Engine runs causal attribution on your GA4 export, showing what each channel caused next to last-click. One read costs €99; Pro is €299/month.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
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Causality Engine is a causal attribution tool for ecommerce brands that run Google Analytics 4. It reads a GA4 export and shows what each marketing channel caused, set next to what last-click attribution credited to it. The aim is to settle the familiar problem where Meta, Google and Shopify each report different results and the owner has to pick one number.
The product is run by Causality Engine B.V., based in the Netherlands, and was founded in December 2023. It is aimed at ecommerce owners and in-house marketing leads who split budget across several channels. Every figure comes with a confidence range, and the tool declines to give a verdict when spend is too small to produce a clear signal.
The process starts with one file: the Attribution paths export from GA4 as a CSV. The company recommends 12 months or more of history, and longer reads better. There is no pixel, SDK or access grant, so nothing is installed on the store. The free first finding is worked out in the browser, and the file does not leave it.
For the full read, the causal-inference model analyzes the converting paths, splits Direct traffic back to the channels that sent those buyers, and separates what each channel caused from what it only touched. It also rebuilds last-click from the same file so both views appear together. A read finishes in 1 to 2 minutes, and receipts check each number against the export.
Each channel is shown with its last-click share beside the model's share, plus a data-health score from 0 to 100 and a next step. Next steps are phrased as raise, cut or hold, with a suggestion to test in one region first. Under a data-health score of 90, the guidance is to move budget in steps rather than all at once.
The read also includes common paths to purchase and a shareable link for whoever approves the budget. Channels under 1% of credit on both methods are labeled too small to act on, and untagged traffic is flagged with advice to add UTM source and medium. Pro adds automated GA4 ingestion, a chatbot over attribution data, and budget alerts when a channel shifts.
Causality Engine is a causal attribution tool for ecommerce brands that use Google Analytics 4. It reads a GA4 export and shows what each channel caused, next to what last-click credited. It is run by Causality Engine B.V. in the Netherlands.
A single causal read costs €99 one-time, and Pro costs €299 per month, billed monthly. Enterprise is a custom 90-day pilot. There are no seat or setup fees, and prices exclude VAT.
There is no time-limited trial, but the first finding is free and runs in your browser, so your file never leaves it. The full €99 read comes with a 30-day refund, no questions asked, and you keep the read.
It needs the Attribution paths export from GA4 as a CSV, ideally 12 months or more of history. No pixel, SDK or developer work is required, and any store platform works.
Google Analytics 4 is the live data source today. Shopify, WooCommerce, Meta Ads, Google Ads, TikTok Ads, Klaviyo and several others are listed as coming soon. The read already covers every channel visible in the GA4 export.
It is aimed at ecommerce owners and in-house marketing leads who run GA4 and split budget across four or more channels. Pro suits teams with 8 or more channels and budgets that move weekly.
The €99 one-time read and refund policy make it affordable for small stores. However, the company says it declines to give an answer when spend is too small for the model to find a clear signal.
The model returns per-channel results 1 to 2 minutes after upload. The company estimates about two minutes to export from GA4 and about one minute to upload.