Marketing & Advertising · Incrementality

Platform dashboards should not grade their own ad spend

In short Buyers should stop accepting a platform's own credit for conversions and ask what would change if the spend disappeared, because last-click reporting and incrementality measure different things.

Digiday reports that Google search, the line item buyers never questioned, is finally getting questioned.

It skipped scrutiny for so long because the dashboard always looked good.

I just got off a call with a client who couldn't square two reports. Our dashboard showed zero incremental impact for a campaign. The publisher dashboard showed it working.

Both were accurate. They answer different questions. The publisher shows last-click credit. We show what wouldn't have happened anyway, and those conversions would have happened anyway.

Brand search is the cleanest example. Someone already looking for you clicks, and the platform takes the credit.

If you're a buyer, stop accepting the platform's own grade on its own work. Ask what changes when the spend goes away.

Search might still earn its budget. It just has to prove it.

Responding to Google search loses its free pass with buyers, Digiday

Originally posted on LinkedIn →

Topics Incrementality · Search advertising · Marketing attribution · Media buying

Jeff Greenfield

About the author

Jeff Greenfield

Builds privacy-first attribution platforms to help marketers prove their impact

Jeff Greenfield has spent two decades creating marketing campaigns and built one of the first multi-touch attribution platforms in 2008. It earned MRC Accreditation and grew 171% YoY before his 2019 exit. In 2022, Jeff launched Provalytics, a privacy-first attribution platform delivering 15-25% ROI growth without user-level data.

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