IAB TCF v2.2 Implementation

Overview

The IAB Europe Transparency and Consent Framework (TCF) v2.2, released in May 2023 as an update to v2.0, provides a standardized mechanism for collecting, encoding, and distributing user consent signals across the programmatic advertising supply chain. Publishers, advertisers, and ad technology vendors use TCF to communicate consent status through the TC String — a compact, base64url-encoded data structure. TCF v2.2 introduced key changes including the removal of legitimate interest as a legal basis for cross-device targeting (Purpose 2 in part) and restrictions on certain vendor practices.

TCF v2.2 Architecture

Core Components

1. Consent Management Platform (CMP): The user-facing interface that collects consent. Must be registered with IAB Europe and assigned a CMP ID.
2. Global Vendor List (GVL): A centralized registry of ad technology vendors, maintained by IAB Europe, listing each vendor's declared purposes and legal bases.
3. TC String: The encoded consent signal transmitted through the ad supply chain.
4. CMP API (__tcfapi): A JavaScript API that vendors call to read the current consent state.

Implementation for Pinnacle E-Commerce Ltd

Step 1: CMP Registration