Updates to Data Control Between Google Analytics and Google Ads

Introduction

Google is introducing major changes to the way data is managed between Google Analytics and Google Ads. These updates are aimed at simplifying privacy controls, streamlining consent management, and ensuring that user preferences are applied consistently across both platforms. Currently, when a Google Analytics property is linked to a Google Ads account, data flows from Analytics into Ads and becomes subject to Google Ads terms and conditions. However, some settings within Google Analytics still influence how that data is used in Ads. Google now plans to centralize these controls based on where the data is ultimately used.

Current System of Data Sharing

At present, linking a Google Analytics property to a Google Ads account enables Analytics data to flow into Google Ads. Once transferred, the data is controlled under Google Ads policies and terms. Despite this, several settings within Google Analytics continue to regulate how the data is handled in Google Ads.

For example:

• Google Signals settings manage Google Ads cookies and identifiers.
• Ads personalization settings within Google Analytics determine how audiences are used for advertising purposes.

This overlap has created multiple layers of controls, which can complicate consent management and data governance.

Purpose of the Upcoming Changes

Google aims to simplify and consolidate data controls by assigning authority based on the platform where the data is used.

Under the new system:

• Google Ads settings will exclusively control all advertising-related data, including data shared from Google Analytics.
• Google Analytics settings will only govern data used inside Analytics for reporting and behavioral analysis.

According to Google, this change will:

• reduce redundant settings,
• simplify privacy management,
• improve consistency in enforcing user consent preferences,
• and streamline compliance processes.

Importantly, users and advertisers will still maintain control over whether and how data is collected and used.

Changes to Google Signals

Current Role of Google Signals

At present, Google Signals and Consent Mode Ads settings jointly control the collection of:

• Google Ads cookies,
• advertising identifiers,
• and related user data collected through the Google Analytics tag and SDK.

Upcoming Update

Starting from June 15, 2026, Google will shift to a simplified model in which:

• Consent Mode within Google Ads becomes the single control mechanism for advertising-related data collection.

This means users’ privacy choices managed through Ads Consent Mode settings will exclusively determine how such data is collected and used.

New Role of Google Signals

After June 15, 2026:

• Google Signals settings in Analytics,
• and the Google Signals API,

will only control the association of Google Analytics data with signed-in user information for behavioral reporting purposes.

Thus, Google Signals will no longer determine advertising data collection for Ads.

Changes to Ads Personalization

Existing System

Currently, ads personalization is controlled through multiple layers within Google Analytics, including:

• account-level settings,
• property-level settings,
• Ads link settings,
• and event-level settings.

This creates a complex governance structure for advertisers.

Planned Simplification

Later in 2026, Google plans to simplify this process by transferring exclusive control of ads personalization to Google Ads settings.

Once a Google Analytics property is linked to Google Ads:

• the Consent Mode ad_personalization setting will solely determine whether data can be used for personalized advertising.

This means Google Ads will become the central authority for all ad personalization decisions.

Changes Regarding IP Addresses

Google also announced updates concerning IP address handling.

Encryption of IP Addresses

IP addresses automatically collected through:

• Google Tag,
• and Google SDK systems.

will be encrypted before being transferred to linked Google Ads accounts.

Control Under Google Ads

Once transferred:

• encrypted IP addresses will fall under Google Ads controls,
• and their usage will follow Google Ads settings, configurations, and terms of service.

Google has indicated that additional details regarding the use of IP addresses outside:

• the European Economic Area (EEA),
• the United Kingdom,
• and Switzerland.

will be shared through its Help Center resources.

Significance of These Changes

These updates reflect Google’s broader strategy to:

• centralize privacy governance,
• simplify consent frameworks,
• and eliminate overlapping controls between Analytics and Ads.

The changes are expected to:

• improve transparency,
• reduce administrative complexity,
• strengthen consistency in consent enforcement,
• and make data management easier for businesses.

For advertisers and organizations, this means a clearer distinction between:

• reporting functions handled by Google Analytics,
• and advertising functions controlled by Google Ads.

What CMPs need to do to stay compliant

To remain compliant and properly integrated with Google Consent Mode, Consent Management Platforms (CMPs) should focus on the following key requirements:

• Implement Google Consent Mode v2 correctly.
• Support consent signals such as:
  • ad_storage
  • analytics_storage
  • ad_user_data
  • Ad_personalization
  • functionality_storage, personalization_storage,
  • security_storage.
• Ensure user consent choices are passed to:
  • Google Analytics
  • Google Ads
    in real time.
• Allow granular consent choices (analytics, ads, personalization, etc.).
• Dynamically adjust Google tags and SDKs based on consent status.
• Maintain secure consent logs for compliance with:
  • GDPR,
  • CCPA,
  • and other privacy laws.
• Support easy withdrawal or modification of consent by users.
• Ensure transparency by clearly explaining:
  • what data is collected,
  • why it is used,
  • and who receives it.
• Prepare for Google’s 2026 changes, where Google Ads Consent Mode settings will become the primary control for advertising-related data.
• Integrate with industry standards such as Google-certified CMP frameworks and IAB TCF v2.2.

Conclusion

Google’s upcoming changes to Google Analytics and Google Ads represent a major shift in digital advertising and privacy management. By consolidating advertising-related controls within Google Ads and limiting Google Analytics to reporting functions, Google aims to create a simpler and more consistent consent system. The updates to Google Signals, ads personalization, and IP address management are designed to reduce redundant settings while ensuring that user privacy preferences are respected across platforms. As these changes roll out through 2026, businesses and advertisers will need to review and adapt their consent and data governance practices accordingly. Meanwhile, CMPs need to ensure that they are implementing the Google Consent Mode V 2.0 accurately.