This page is for consent management platform (CMP) developers who want to use the TCF framework to transmit consent signals to Google tags.
The IAB Transparency & Consent Framework (TCF) is an open-standard technical framework that enables websites, advertisers, and ad agencies to obtain, record, and update consumer consent for web pages.
To control Google Analytics cookies, integrate with consent mode.
Enable consent mode TCF integration
You can enable the consent mode TCF integration using either of the following methods.
CMP API
Set the enableAdvertiserConsentMode field to true in TCData
objects generated by your TCF consent management platform API implementation.
TCData.enableAdvertiserConsentMode = true
Website
To enable TCF support, set the property to true on each website that should
support TCF, even on pages that are loaded through an iframe.
window['gtag_enable_tcf_support'] = true
Apps
TCF integrations may be automatically enabled by your CMP. You can disable the
integration by updating your AndroidManifest.xml (Android) or info.plist
(iOS) file.
For Android:
<metadata android:name="google_analytics_tcf_data_enabled" android:value="false" />
For iOS:
<key>GOOGLE_ANALYTICS_TCF_DATA_ENABLED</key> <false/>
TCF integration behavior
The Google tag and the Google Analytics for Firebase SDK only accept TCF strings that are correctly implemented according to the TCF policies and technical specifications, and adhere to Google's EU User Consent Policy.
For web tag integrations, if the CMP doesn't respond within 500 milliseconds or you see "error", "stub", or "loading" status, the tag will proceed with default consent settings.
Learn how to troubleshoot TCF implementations.
When enabled, the consent mode TCF integration maps from TCF Purposes to consent mode commands as follows.
| Purpose | Description | Google tag behavior when Purpose is denied |
|---|---|---|
| 1 | Store and/or access information on a device. | ad_storage = denied ad_user_data = denied
|
| 3 | Create a personalised ads profile | ad_personalization = denied |
| 4 | Select personalized ads |
ad_personalization = denied
|
| 7 | Measure ad performance | ad_user_data = denied
Disables the Google signals feature in Google Analytics (for web tags only). |
| 9 | Apply market research to generate audience insights | Disables the Google signals feature in Google Analytics (for web tags only). |
| 10 | Develop and improve products | Disables the Google signals feature in Google Analytics (for web tags only). |
Next steps
If you plan to provide your customers with a tag they can use in Google Tag Manager, create a tag template for your banner.