Attribution Model Optimization | Conversion Credit Split

The attribution model decides which click gets credit for a conversion. Nothing in the account changes when the model changes — but the picture in your reports changes completely, because which campaign “looks good” depends on it.

Last-click can mislead

Under default last-click logic, all credit goes to the final step in the funnel. Brand searches naturally sit at that final step, so they look exaggeratedly good, while the upper-funnel campaigns that created the demand look exaggeratedly bad.

What data-driven attribution changes

Data-driven attribution decides the credit split by looking at your account’s own conversion paths. This makes the real contribution of upper-funnel campaigns visible — but it doesn’t work reliably without sufficient conversion volume.

A model change also affects bidding

Smart bidding bids based on attributed conversion data. When the model changes, so does the data the algorithm sees; expect a short relearning period afterward, and avoid sudden budget decisions during it.

How we start. We first review your current model and conversion path report. Reach out via the contact page.

Frequently Asked Questions

Will my conversion count drop after changing models?

Total conversions usually stay the same; the distribution across campaigns shifts — some gain, some lose.

Why do GA4 and Google Ads show different numbers?

The two platforms use different attribution and different lookback windows; even with the Google Ads and GA4 link in place, the numbers won’t match exactly, and that’s expected.

How often should this be reviewed?

When the campaign mix changes (a new upper-funnel channel is added) and when conversion volume rises significantly.