Market Core · Customer Journey · Module

Attribution

How credit is assigned across touchpoints, on a stated model, with its limits recorded — because the purpose is better budget decisions rather than a defensible number.

The idea

How it works

Every attribution model is wrong in a known direction. Last-click over-credits the final touch and channels that capture existing demand; first-touch over-credits discovery. Choosing one is choosing which error to make.

The only reliable answer to contribution is a holdout: withhold the channel and see what happens. It is uncomfortable, it costs some demand, and it is the difference between a budget decision and a guess.

Working with it

In practice

  1. 01

    State the model and its bias

    Which model, and which direction it errs in. A number without that is used as though it were true.

  2. 02

    Test contribution by withholding

    Geographic or temporal holdouts answer the question that no model can.

  3. 03

    Do not attribute what you cannot observe

    Word of mouth, conversations and offline influence are real and invisible. Assigning their effect to a tracked channel is the standard error.

  4. 04

    Use it for decisions, not for reporting

    Attribution exists to decide where the next pound goes. As a performance report it mainly settles internal arguments.

One level in

The components of attribution

A component is something that exists afterwards which did not exist before — a deliverable or a mechanism, not an intention.

  1. The model

    Which attribution approach is used, and what it systematically over- and under-credits.

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  2. The unobservable

    What influences purchase and cannot be tracked, named so it is not assigned elsewhere.

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  3. The holdout

    What has actually been tested by withholding, and what it showed.

    Learn

Every attribution model is wrong in a known direction. Choosing one is choosing which error you prefer.