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What is attribution

Also known as: marketing attribution, conversion attribution

Definition

Attribution is how credit for a sale is split between the ads and channels a customer met before buying. The rule you choose, the model, decides the split.

Why it matters

Each ad platform grades its own homework.

Common mistakes

Adding Meta's and Google's reported conversions together and treating the sum as the number of new customers.

Related terms

Worked exampleIllustration

One booking, two claims, at a fictional pilates studio

A fictional neighbourhood pilates studio runs Meta and Google ads in the same week.

  1. The path

    On Sunday a customer clicks the studio's Instagram ad. On Tuesday she searches the studio's name on Google, clicks the search ad and books a trial class on the site.

  2. What Meta sees

    The booking came inside Meta's attribution window after a click on its ad, so Meta's report counts it.

    1

  3. What Google sees

    The last ad clicked before the booking was Google's, so Google's report counts it too.

    1

  4. The dashboards

    The owner's two reports together.

    1 + 1 = 2

  5. The calendar

    One person, one trial class.

    1

Add up the platforms and you count one customer twice. Count bookings in your own calendar.

Illustration

One booking, two claims

  1. SundayInstagram ad100%
  2. TuesdayGoogle search ad100%
  3. TuesdayTrial booked

Meta's report1

Google's report1

The calendar1

1 + 1 = 2 one customer counted twice

Meta counts the booking because it came inside its attribution window, and Google counts it because its ad got the last click. Add the two reports and one customer becomes two. Count bookings in your own calendar.

The fictional studio's customer clicked an Instagram ad on Sunday and a Google search ad on Tuesday, then booked.

Definition

Attribution decides which ad, channel or post gets the credit when someone books or buys. A customer often meets a business several times before acting: an Instagram ad, a Google search for the name, a chat on WhatsApp. The attribution model is the rule that splits the credit between those touches. In Google Ads two models remain: last click, which gives all the credit to the last ad clicked, and data-driven, which splits it using the account's own conversion data. Google no longer supports the first click, linear, time decay and position-based models. Each platform also counts by its own rules, so Meta and Google can each claim the same sale.

Why it matters

Meta counts a booking that falls inside its attribution window, Google counts it by its own model, and the same booking can appear in both reports. Add the dashboards up and a small business can count more customers than its calendar holds, then move budget on a number that never happened. Your own count of bookings and sales is what every platform's report is checked against.

Directly related: Customer Journey, ROAS, CPA.

Improvement tips

  • Count bookings and sales in your own calendar or books, and treat each platform's number as that platform's claim.
  • Ask "How did you hear about us?" in your first WhatsApp reply, and write the answer down.
  • Add UTM tags to the links in your ads and posts, so your analytics shows where each visit came from.
  • Compare channels over the same period and with the same definition of a conversion.
  • When you pause a channel, watch what happens to your own bookings. It is a rough test of what the channel adds.

Common mistakes

  • Following an old guide that recommends a first click or linear model in Google Ads, which Google no longer supports.
  • Giving all the credit to the last click and cutting the ads that introduced the business in the first place.
  • Forgetting the touches no dashboard sees: a friend's recommendation, the neighbourhood WhatsApp group, a phone call.

Related terms

MarketingIntermediate

Customer Journey

A customer journey is the whole path a customer walks with your business, seen from their side, from first hearing of you to buying, using and coming back.

MarketingIntermediate

ROAS

ROAS (return on ad spend) is the revenue an ad campaign brings for each shekel spent on it. It is not profit: a ROAS of 5 can still lose money after costs.

MarketingIntermediate

CPA

CPA (cost per acquisition) is what you pay on average for one conversion you chose to count, such as a booking or a sale: spend divided by those conversions.

MarketingIntermediate

Retargeting

Retargeting is showing ads to people who already visited your site or engaged with your page, to bring back those who left without buying or booking.

MarketingBeginner

Marketing Funnel

A marketing funnel is a model of the stages people pass from first seeing your business to buying, and it shows at which stage most of them drop out.

From the blog

Why Marketing Fails: Fix the System, Not the Channel

Why small business marketing produces activity but not enough suitable leads, sales or profit, and the order to fix it: buyer, offer, follow-up, numbers.

Quick check

Meta reports one booking, Google reports one booking from the same person, and your calendar shows one. How many bookings did you get?

Choose an answer

Frequently asked questions

What is attribution in plain words?
Deciding which ad or channel gets the credit for a sale or a booking, when the customer met the business more than once before acting.
What is the simplest way to know where customers come from?
Ask them. Put "How did you hear about us?" in your first WhatsApp reply or on the booking form, write the answer next to the booking, and count once a week. It catches what no dashboard sees, such as a friend's recommendation.
Why do Meta and Google both claim the same sale?
Because each one counts by its own rules. Meta credits a sale that happened inside its attribution window after someone clicked or saw its ad, and Google credits the same sale by its own model. Neither report removes what the other already counted, so their totals can be higher than your real number of customers.
Which attribution models does Google Ads offer?
Two: last click, which gives all the credit to the last ad clicked, and data-driven, which splits the credit using your account's conversion data. Google says the first click, linear, time decay and position-based models are no longer supported, so an older guide that recommends them is out of date.
Last click or data-driven, which should I use?
Last click is simple and easy to check by hand: the last ad clicked gets it all. Data-driven lets Google split the credit from your account's data, which you cannot check yourself. Whichever you choose, compare the result with your own bookings.
What is an attribution window?
The time after a click or a view during which a platform still credits its ad for a sale. Each platform sets its own and the settings change over time, so check them in the account before you compare two reports.
What is a UTM tag?
A short tag added to the end of a link that tells your analytics where the visit came from, such as the source, instagram, and the campaign name. Use the same names every time, or the reports will split one source into several.
My leads arrive on WhatsApp. Can the platforms see which ones became customers?
Not on their own. A click-to-WhatsApp ad shows how many chats started, but the platform does not know which chat became a customer. Count that step yourself, with labels in WhatsApp Business or a simple list next to your calendar.
Is it allowed to track visitors with a pixel?
A pixel or tracking code collects data about the people who visit your site, and Israel's Privacy Protection Law, 1981, as amended by Amendment 13, in force since 14 August 2025, governs collecting and using personal details. Before adding one, check what it collects and how your site tells visitors about it. Educational material, not legal or tax advice. Check your own case with a lawyer or an accountant.
Does attribution matter for a small business?
Once you pay for more than one channel, yes. Without it you may cut the channel that introduced your customers, or double count the ones you have. With one channel, asking customers how they found you is often enough.
How do I know whether a channel really adds customers?
Pause it for two weeks and compare your own bookings with two similar weeks when it ran. It is a rough test, since weeks differ, but it measures what the channel adds rather than what it claims.
Do I need special software for attribution?
No. The platforms' own reports, free analytics with UTM tags on your links, and your own calendar or books are enough for a small business. Expensive tools do not fix a sale that no system ever saw.

Sources: Google Ads Help, "About attribution models" (support.google.com/google-ads/answer/6259715), Privacy Protection Authority, Amendment 13 questions and answers (gov.il/he/pages/tikun13_qa)

Last reviewed: 2026-09-24

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