
Advertised price disruptions on Google Shopping are often mistaken for “false-positive” MAP violations, but they’re usually caused by data mismatches, feed errors, and unauthorized sellers. This white paper explains how Google Shopping builds listings from multiple sources (Merchant Center feeds, on-page structured data, historical info, and platform syncs), and why weak identifiers like missing/duplicated GTINs or incomplete variant data can lead to mis-grouped variants and listing vs. landing-page price mismatches. You’ll learn a practical framework for stabilizing your shopping data ecosystem through segmented monitoring, clean feed/structured data hygiene, managing unauthorized sellers, and distribution controls that prevent data pollution at the source.
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