How To Add Google Ads Remarketing Pixel For Shopify Natively

An easy step by step guide on how to add Google Ads Remarketing Pixel to Shopify Customer Events using the latest features.

Login to Google Ads, then in the left hand menu select Tools > Audience manager

From the top menu, click on Your data sources

Here you will see all your panels, click on the 3dot menu for Google Ads Tag and select edit source. Or if that is not available click on set up tag.

Or go to this URL: https://ads.google.com/aw/audiences/management/datasources/tagsetup

Select the following:

• Remarketing
  • Collect data on specific actions people performed on your website to show personalized ads.
• Business Type
  • Retail
• Click on Save and continue

Click on Install the tag yourself

Copy the numeric source tag id as shown in the image below for later use. We will add the source tag id to the script below. (paste it in a text file for later use)

Go to Shopify > Settings > Customer Events

Click on add custom pixel

Give it a name, such as Google Ads Remarketing Tag

Set your Customer Privacy Permission to Marketing only.

Set your Data sale to data collected does not quality as data sale.

Paste your code from the link below, and change the following 3 settings (only edit between settings start and end)

You can get the code at: https://merchantcodex.com/google-ads-remarketing-pixel-for-shopify-native-v1-05/

• Change GOOGLE_ADS_ID value with your account ID you saved earlier
• Change the REMARKETING_COUNTRY_CODE to the country your shopify ID’s, if you don’t know simply go to Google Merchant Center > Products > All Products > and the id’s will look like shopify_US_123456789_123546789
• Change the ID_TYPE to shopify, sku, variant_id or parent_id dependent on the ID’s you used in Google Merchant Center
  • if your products look like shopify_US_123456789_123456798 add the word shopify
  • if your products are sku’s add the value sku — const ID_TYPE = ‘sku’;
  • if your proudcts use the variant id use the value variant_id — const ID_TYPE = ‘variant_id’;
  • if your proudcts use the parent id use the value parent_id — const ID_TYPE = ‘parent_id’;

Now click on save and connect

🛠️ Changelog

Version 1.05 – 7 th April 2025

✨ New Features:

• Automatic Cookie Consent Handling (with Fallback)
  The script now respects Shopify’s customer privacy API. If a consent app is installed, it will only run tracking after marketing consent is given.
  ✅ If no cookie banner or consent app is present, the script automatically runs, ensuring tracking still works out of the box.

🧠 Improvements:

• Universal Compatibility
  Works seamlessly with or without cookie consent apps — no extra setup needed.
• Console Warnings
  Helpful messages added to the browser console when the privacy API is not detected or consent is denied — makes troubleshooting easier for store owners.

🔐 Compliance Ready (but Flexible)
For stores in regions like the EU/UK/CA, tracking respects privacy laws by default. For others, no setup changes are needed — just paste and go.

Version 1.04 – 6th April 2025

✨ New Features:

• begin_checkout event added
  Tracks when a user starts the checkout process, improving funnel visibility and audience targeting.
• remove_from_cart event added
  Helps build audiences based on cart abandonment behavior.
• customer_login and customer_account_created events added
  Enables retargeting or exclusion of logged-in users and new customer sign-ups for more refined remarketing lists.

🧠 Improvements:

• Deduplication logic for purchase events
  Prevents duplicate conversions being sent to Google Ads during multi-trigger scenarios.
• Null/undefined safety added to all event handlers
  Prevents errors when product or variant data is missing—ensures reliable performance even with unusual product setups (e.g. bundles, custom apps).
• Standardized product ID generation
  All event handlers now use a centralized getItemId() function for consistent and clean tracking across all product ID formats (shopify, sku, variant_id, parent_id).
• Inline logic for begin_checkout event
  No longer depends on shared utility functions, keeping things fast and lightweight.
• Conversion callback (event_callback) added to purchase
  Ensures Google Ads recognizes the conversion even during quick page transitions or redirects.

🧼 Refactoring:

• Cleaner code structure and reduced duplication.
• All item processing logic now uses Array.map().filter() for safe and accurate payload creation.

Version 1.02 – 17th June 2024

First itteration of the Google Ads remarketing pixel code for Shopify customer events.

🙋Questions or Need Help?

Try MerchantCodex (Courses, Forum, Coding, etc)

Or do you have a private question or need private specialist support? Get in touch! I’m happy to help you optimize your Google Shopping listings for the best performance.