How to set up IAB TCF 2.3 GDPR Transparency and Consent Framework
The IAB Transparency and Consent Framework (TCF) is an initiative designed to support the digital advertising ecosystem in complying with GDPR (General Data Protection Regulation) and the ePrivacy Directive.
Clym offers flexible placement options for its consent widget on your website. This ensures that your branding and website's look and feel remain consistent, enhancing user experience while maintaining compliance with data privacy regulations.
To serve ads through Google publisher products such as AdSense, Ad Manager, or AdMob within the UK or European Economic Area (EEA), you must use a Google-certified Consent Management Platform (CMP).
Clym is a certified Consent Management Platform (CMP) that meets Google’s requirements and aligns with IAB TCF standards, ensuring users in the UK and European Economic Area (EEA) provide the necessary consent to view ads in compliance with GDPR and the ePrivacy Directive.
Only traffic from Google-certified CMP is eligible for personalized ads. Traffic from a non-certified CMP may only qualify for non-personalized ads or limited ads (including programmatic limited ads) where supported.
How to set up your widget for IAB TCF 2.2 in Clym
1. Sign in to your Clym Control Center
You should have received a magic link in your initial onboarding email. Please click Sign in from the email to get started. Alternatively, navigate to Clym's home page and click Sign in in the upper right-hand corner.
2. Access the Manage tab
From the left side menu, select Manage.
Click the Property settings section to expand the menu, and select Jurisdictions. Click the pencil icon next to the jurisdiction that you would like to edit.
3. Change the widget display mode
From the window that opens, expand the Data privacy section and click the pencil icon to edit the settings for the regulation.
In the widget settings, change the Initial notification to IAB TCF v2.3. Click Save.
To learn more about Widget initial notification settings, please review our article.
Changes to the banner
To comply with IAB TCF v2.3, ensure the consent banner must include:
- Information about data stored/accessed on user's devices (e.g., cookies, identifiers).
- Disclosure of personal data processing and its nature (e.g., unique identifiers, browsing data).
- Links to the vendor list and the number of third-party vendors processing the collected information.
- List of purposes using GVL v3 standardized or stack names.
- Highlight of vendor-specific special features.
- Functionality that allows users to withdraw consent anytime and explain how to access the UI.
- Calls to action for consent and customization.
Note: The banner text and vendor list are auto-populated. We limit possible adjustments to the banner to make sure it's compliant with IAB requirements, but you can adjust the processor list according to guidelines.
It should be possible to withdraw the consent at any time. To ensure users have access to the widget to withdraw consent or adjust their choices, we recommend that you enable the Display privacy widget launcher for the locations where the IAB TCF 2.3 Initial Notification is used at all times.
If you encounter any challenges, please reach out to us at support@clym.io.
Updated on: 30/01/2026
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