Articles on: Integrations

Amazon Consent Signal (ACS) Integration Guide

This integration allows Shopify merchants using Amazon Ads to communicate user privacy choices directly to Amazon, ensuring your advertising remains compliant and effective in the UK and EEA.

Amazon Consent Signal (ACS) is Amazon’s dedicated framework for managing user consent, similar to Google Consent Mode. It enables advertisers to transmit end-user privacy choices to Amazon Ads services (such as Amazon DSP or Amazon Marketing Cloud).

By sharing a valid consent signal and the country code where consent was granted, you ensure that:

Measurement remains uninterrupted: Amazon can accurately attribute conversions while respecting privacy.
Targeting is compliant: Your ads reach the right audience based on their explicit consent.
Data Quality is maintained: Only valid user data flows into your Amazon Ads dashboard.

How it Works

The ACS integration uses two specific signals to communicate consent to Amazon:

amzn_user_data: Indicates if the user allows Amazon to process personal data (like advertising IDs) for advertising.
amzn_ad_storage: Indicates if the user allows Amazon to read/write advertising cookies or similar technologies on their device.

In the Pandectes GDPR Compliance app, these signals are automatically mapped to the Marketing consent category. When a visitor grants consent for Marketing, these signals are set to GRANTED. If they decline, they are set to DENIED.

Benefits for Your Store

Avoid Service Disruption: Amazon requires a valid consent signal for campaigns running in the UK and EEA. This integration keeps your ads running smoothly.
Enhanced Performance: Access deeper measurement and attribution benefits within Amazon Marketing Cloud (AMC).
Built-in Trust: Showing users that you respect their privacy choices builds long-term brand credibility, essential for large retailers.

How to Enable ACS in Pandectes

Enabling the Amazon Consent Signal is straightforward and can be done directly within your Pandectes dashboard.

1. Enable the Integration

Go to the Settings tab in your Pandectes GDPR Compliance app.
Navigate to the Integrations section.
Locate Amazon Consent Signal and toggle it to Enabled.
Click Save.

2. Technical Note: WAF and Cookies

When ACS is enabled, the integration stores a first-party cookie (typically named amzn_consent).

Note for advanced users: If you use a high-level Web Application Firewall (WAF), ensure it is configured to allow the amzn_consent cookie format to prevent any blocking of the signal.

3. Verification

Once enabled, you can verify the integration is working by:

Opening your store in an incognito window.
Accepting the "Marketing" category in the Pandectes cookie banner.
Using browser developer tools (F12) to check for the presence of the amzn_consent cookie.

Updated on: 10/02/2026

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