With Google confirming that IAB TCF v2.3 will become mandatory for all newly generated consent strings beginning February 28, 2026, publishers and Consent Management Platforms (CMPs) are entering an important migration window.

Google has stated that after the deadline, new TCF v2.2 strings will no longer be supported. Ad requests that do not meet the updated requirements may default to Limited Ads, which could impact monetization performance and measurement continuity across European advertising markets.

While many publishers are still operating on earlier consent framework versions, the shift to TCF v2.3 reflects a broader change in how consent signals are treated across the programmatic ecosystem. Consent is increasingly becoming part of digital advertising infrastructure, influencing not only regulatory alignment but also revenue workflows, vendor relationships, and campaign attribution.

In response, Clym today announced support for TCF v2.3 within its Consent Management solution, enabling publishers to begin transitioning immediately during Google’s current transition period.

By enabling streamlined migration, Clym gives publishers the ability to deploy, test, and validate updated consent strings ahead of the deadline, reducing last-minute operational pressure while maintaining continuity with existing consent flows.

“Consent frameworks are no longer just regulatory tools; they are revenue infrastructure,” said Mircea Patachi, COO of Clym. “Publishers now need systems that can adapt quickly as requirements evolve across Europe’s advertising landscape.”

Clym’s implementation supports structured TCF v2.3 string generation with flexible configuration options that allow publishers to tailor consent settings by region, vendor set, and operational model. Through a centralized dashboard, teams can localize consent behavior across jurisdictions without rebuilding consent experiences from scratch, making updates easier to manage across multi-market operations.

As the advertising ecosystem continues to evolve around user consent and signal integrity, proactive migration strategies are becoming part of publisher revenue planning. Publishers that begin early may be better positioned to avoid disruption as enforcement timelines approach.

To learn more about Clym’s IAB TCF support, visit: https://www.clym.io/solutions/consent-management/iab-tcf

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