In a UK tribunal filing, former Meta employee Samujjal Purkayastha alleges Meta misled advertisers by inflating its Shops ads metrics and bypassed Apple's ATT
After Apple rolled out its App Tracking Transparency (ATT) feature in 2021, Meta executives scrambled for what they called …
Context & Ripple Effects
The filing lands in Meta’s post-ATT advertising reset, after marketers raised concerns that its AI-driven Advantage+ ad tooling reduced advertiser control as the company adapted its ad systems.
It also intersects with UK scrutiny of Meta’s data practices: the CMA previously secured a Marketplace data-use opt-out commitment. The new allegations tie measurement credibility and tracking compliance together in a single dispute.
First-order effects
- Meta must answer allegations in a UK tribunal concerning Shops ad measurement and its handling of Apple’s ATT framework; the claims are allegations, not established findings.
- Advertisers using Shops ads face fresh questions about the reliability of reported performance and the data practices underlying targeting and measurement.
Second-order effects
- Advertisers and agencies may press Meta for more granular reporting or independent validation of Shops campaign outcomes, increasing scrutiny of platform-provided metrics.
- The filing gives privacy and competition overseers another fact pattern to examine alongside Meta’s prior UK commitments on advertiser-data use.
Third-order effects
- If the allegations are substantiated or lead to enforcement, large ad platforms could face stronger pressure to make consent, attribution and commerce-ad measurement more auditable rather than relying on opaque optimization systems.
- The broader effect would be to make privacy compliance and metric integrity inseparable parts of platform advertising governance, with legal exposure rising when either cannot be demonstrated.
The trend: Platform advertising is moving toward greater accountability for both the data used to target ads and the metrics used to prove their value.