Meta attribution settings
Meta (Facebook/Instagram) attribution assigns conversions to ad interactions using an attribution setting that combines a click-through window and a view-through window. Conversions are credited within the chosen window and reported on the day the interaction occurred. Because windows and the click/view distinction differ from other platforms, Meta-reported conversions will not match GA4 or other tools.
What this means
Meta's attribution setting defines two windows: a click-through window (how long after clicking an ad a conversion can be credited) and a view-through window (how long after merely seeing an ad). A conversion that falls inside the configured window is attributed to that ad interaction, and Meta reports it on the date of the ad interaction rather than the date of the conversion.
View-through credit is a defining feature: Meta can credit conversions from impressions a user did not click, which other models may not count the same way.
Why counts differ across tools
Because Meta attributes within its own walled garden, on its own windows, dating to the interaction and including view-through, its conversion counts are structurally different from a site analytics tool that uses last-click or last-non-direct on the conversion date. Neither is 'wrong'; they answer different questions on different data.
Meta documents the available click and view windows and how attribution dating works. The practical guidance: compare trends within each tool over time rather than expecting absolute counts to reconcile, and account for view-through and interaction-dating when reading Meta numbers.
- Separate click-through and view-through windows
- Conversions dated to the ad interaction, not the conversion
- View-through credit makes counts differ from click-only tools
How it appears in analytics and logs
Meta credits a conversion to the ad interaction within its window and dates it to the interaction; mismatches with other tools usually reflect window and click/view differences.
Diagnostic use case
Pick a Meta attribution setting (click and view windows) that matches your sales cycle, knowing it changes which conversions are credited and how counts compare elsewhere.
What WebmasterID can help detect
WebmasterID's first-party events give an independent conversion view to compare against Meta's in-platform, window-based attribution.
Common mistakes
- Expecting Meta conversion counts to match GA4 exactly.
- Forgetting view-through conversions are included in the window.
- Ignoring that Meta dates conversions to the interaction.
Privacy and accuracy notes
Meta attribution uses its own ad and event data subject to consent and platform rules; this is a data-model overview, not legal advice.
Related pages
- Walled-garden attribution and its self-reporting
Walled gardens are closed ad platforms that measure and report the conversions they claim credit for, inside their own systems. Each marks its own homework with its own window and rules, so summed across platforms the attributed conversions routinely exceed the real total — double-counting is structural, not accidental.
- View-through conversions: credit for impressions
A view-through conversion credits an impression a user was served but did not click, when they later convert within an impression window. It tries to value awareness that does not get clicked, but it is among the easiest credits to over-count, because seeing is not the same as being influenced.
- Attribution in ad platforms
Each ad platform measures and attributes conversions within its own boundary: its own conversion windows, its own default model, and counts it reports for itself. Because platforms attribute independently and cannot see each other's touchpoints, their self-reported conversions overlap — the same sale can be claimed by several platforms. This page describes that data-model posture without ranking any platform.
- Attribution analytics
Reconcile walled-garden counts with first-party data.
Sources and verification notes
- Meta Business Help Center — About the attribution settingDocuments Meta click-through and view-through attribution windows.
Last reviewed 2026-06-24. Facts are checked against primary/official sources where available; uncertain specifics are marked “Data not yet verified” rather than guessed.