Excluded-area leakage

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A requested exclusion zone (e.g. exclude a competitor's trade area or a control market) can still receive delivery if the platform's exclusion granularity is coarser than the requested boundary, or exclusion isn't supported and is silently dropped.

Excluded-area leakage illustration — ▪ Rendered from the real conversion/geometry code.

Detection

Delivered impressions reported inside the geographic bounds of a declared exclusion zone.

Mitigation

Pre-subtract exclusions in cell space and submit only the net-positive target rather than rely on platform-side exclusion support
Reconcile delivery against the exclusion boundary every flight

Affected conversions

Point+radius → H3 approximate
H3 → platform-native IDs approximate