Meta ads attribution: buyer questions answered
14 buyer questions about Meta ads attribution, each answered from the platforms' own help pages: a short answer, a step-by-step walkthrough with menu paths, and for some questions a version for one store type.
By Joris van Huët, Founder & CEOUpdated 4 min read
Run the numbers for your store: the free break-even ROAS calculator.
Each answer below takes one buyer question about Meta ads attribution and answers it from the platforms' own help pages, read on 1 October 2026. Read the short answer first. If you need to act in GA4, Shopify, Meta or Google Ads, the step-by-step version gives the menu paths.
The questions
How does Meta ads attribution work?
- The short answer: How does Meta ads attribution work?
- Step by step: How to check Meta ads attribution, step by step
- For one store type: How does Meta ads attribution work for sports nutrition?
Why does Meta report more sales than GA4?
- The short answer: Why does Meta report more sales than GA4?
- Step by step: How to reconcile Meta and GA4 sales, step by step
What is the default Meta attribution setting?
- The short answer: What is the default Meta attribution setting?
- Step by step: How to find your Meta attribution setting, step by step
- For one store type: What is the default Meta attribution setting for beauty?
Should I trust Meta ads conversions?
- The short answer: Should I trust Meta ads conversions?
- Step by step: How to audit Meta ads conversions, step by step
What is engage-through attribution on Meta?
- The short answer: What is engage-through attribution on Meta?
- Step by step: How to check engage-through attribution in Meta Ads Manager
- For one store type: What is engage-through attribution for home goods stores?
How do I track Meta ads in GA4?
- The short answer: How do I track Meta ads in GA4?
- Step by step: How to track Meta ads in GA4, step by step
Why don't my Meta ads show in GA4?
- The short answer: Why don't my Meta ads show in GA4?
- Step by step: How to find missing Meta ad clicks in GA4, step by step
- For one store type: Why don't Meta ads show in GA4 for a pet store?
Is 7-day click attribution accurate?
- The short answer: Is 7-day click attribution accurate?
- Step by step: How to test 7-day click attribution, step by step
Do Meta view-through conversions count?
- The short answer: Do Meta view-through conversions count?
- Step by step: How to check Meta view-through conversions, step by step
- For one store type: Do Meta view-through conversions count for food brands?
How do I know if my Meta ads are working?
- The short answer: How do I know if my Meta ads are working?
- Step by step: How to tell if your Meta ads are working, step by step
Why did my Meta ROAS drop?
- The short answer: Why did my Meta ROAS drop?
- Step by step: How to diagnose a Meta ROAS drop, step by step
- For one store type: Why did Meta ROAS drop for an electronics store?
Should I turn off my Meta ads?
- The short answer: Should I turn off my Meta ads?
- Step by step: How to test turning off Meta ads, step by step
How do I measure Meta ads incrementality?
- The short answer: How do I measure Meta ads incrementality?
- Step by step: How to measure Meta ads incrementality, step by step
- For one store type: How do I measure Meta ads incrementality for fashion?
Does Meta overreport conversions?
- The short answer: Does Meta overreport conversions?
- Step by step: How to check if Meta overreports conversions, step by step
How to read these answers
Each answer opens with the short version in bold. Most then set one store's anonymised GA4 export next to the usual answer. That export describes one store, not a benchmark, and holds shares of revenue only.
Every other figure comes from a platform's own help page, linked inside the answer, or is a worked example labelled as one. Each answer ends with three checks you can run this week, with what a pass and a fail look like.
Check the homework. Your GA4 Attribution paths export already holds the evidence. Causality Engine reads that one file and shows what each channel caused next to what last-click gave it, in 1 to 2 minutes, for €99 once (excluding VAT), refundable within 30 days. Check the homework
Related answers
Frequently asked questions
Where do the facts in these Meta ads attribution answers come from?
From the platforms' own help pages, read on 1 October 2026 and linked inside each answer, and from one store's anonymised GA4 export. That export holds shares of revenue only, and it describes one store, not a benchmark.Which Meta ads attribution answer should I read first?
Start with the question closest to the decision in front of you. Read the short answer first. If you need to act in the platform, the step-by-step version gives the menu paths.Can I check these Meta ads attribution answers on my own store?
Yes. Every answer ends with three checks you can run this week in Shopify, GA4 or the ad platform, each with what a pass and a fail look like.
Go deeper: Incrementality testing, explained.
Sixty-second versions of these ideas: Causality Engine on YouTube Shorts.
Keep reading
Terms in this article
- AttributionAttribution identifies user actions that contribute to a desired outcome and assigns value to each. It reveals which marketing touchpoints drive conversions.
- Causal AttributionCausal Attribution uses causal inference to determine which marketing touchpoints genuinely cause conversions, not just correlate with them.
- CausalityCausality is the relationship where one event directly causes another, essential for identifying specific actions that drive desired outcomes in marketing.
- ConversionConversion is a specific, desired action a user takes in response to a marketing message, such as a purchase or a sign-up.
- Google AdsGoogle Ads is an online advertising platform where advertisers bid to display ads, service offerings, and product listings.
- IncrementalityIncrementality measures the true causal impact of a marketing campaign. It quantifies the additional conversions or revenue directly from that activity.
- Marketing MixThe marketing mix is the set of actions a company uses to promote its brand or product. It traditionally includes product, price, place, and promotion.
- Marketing Mix ModelingMarketing Mix Modeling (MMM) is a statistical analysis that estimates the impact of marketing and advertising campaigns on sales. It quantifies each channel's contribution to sales.