Attribution & Conversion Counting

1-Day Click Attribution

By the AdFlint research team · Last reviewed July 2026

Counts a conversion only if it happens within 24 hours of the user clicking the ad, measured from the click itself.

The window opens at the click and closes 24 hours later; anything after that is invisible to the campaign. Advertisers pick it for impulse purchases, app installs, or when they want reported numbers to stay close to same-session behavior. On Meta it is the tightest setting available. The mistake is comparing a 1-day-click campaign against a 7-day-click one and concluding the creative performed worse, when only the counting rule changed.

1-Day Click Attribution compared with

The settings this gets confused with, and how to tell them apart.

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