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1 min readUpdated Sep 8, 2026

Marketing Attribution in the Netherlands: Why Your ROAS is Wrong (and How to Fix It)

**Quick Answer:** If you are a Dutch eCommerce brand, your reported Return on Ad Spend (ROAS) from platforms like Meta and Google is likely inflated by 30-50%. This is because traditional attribution tools are not designed for the nuances of the Dutch market and cannot distinguish between sales that were *influenced* by ads and sales that were *caused* by them. The solution is to adopt a causal inference model to measure the true, incremental lift of your marketing.

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Quick Answer·1 min read

Marketing Attribution in the Netherlands: **Quick Answer:** If you are a Dutch eCommerce brand, your reported Return on Ad Spend (ROAS) from platforms like Meta and Google is likely inflated by 30-50%. This is because traditional attribution tools are not designed for the nuances of the Dutch market and cannot distinguish between sales that were *influenced* by ads and sales that were *caused* by them. The solution is to adopt a causal inference model to measure the true, incremental lift of your marketing.

Read the full article below for detailed insights and actionable strategies.

The numbers behind the problem

iOS tracking loss

40-60%

Google Brand cannibalization

67%

Klaviyo overstatement

5x

TikTok attribution lag

21 days

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Frequently Asked Questions

What is the connection between Marketing Attribution in the Netherlands: Why Your ROAS is W and marketing attribution?

Marketing Attribution in the Netherlands: Why Your ROAS is W is closely related to marketing attribution because it affects how brands understand their customer journey. Causality chains show the true path from awareness to purchase, revealing hidden revenue that last-click attribution misses.

How can Shopify brands improve their approach to Marketing Attribution in the Netherlands: Why Your ROAS is W?

Shopify brands can improve by using behavioral intelligence instead of last-click attribution. This reveals causality chains showing how channels like TikTok and Pinterest drive awareness that Meta and Google convert 14 to 28 days later.

How much does accurate marketing attribution cost for Shopify stores?

Causality Engine costs 99 euros for a one-time analysis with 40 days of data analysis. The subscription is €299/month for continuous data and lifetime look-back. Full refund during the trial if you do not see your causality chains.

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