How to Automatically Add UTM Parameters to All Shopify Links?

How to Automatically Add UTM Parameters to All Shopify Links?

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📌 Why Should You Add UTM Parameters Automatically?

If you're running ads, email campaigns, or social posts that link to your Shopify store, you need UTM parameters to:

• Track source and performance in GA4

• Attribute conversions correctly

• Understand which channels are driving revenue

But manually tagging every URL is time-consuming and error-prone.

So let’s set up automatic UTM tagging across Shopify — the smart, scalable way.

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🤔 What Are UTM Parameters?

UTM parameters are tags you add to your URLs to tell analytics platforms where traffic is coming from.

Example:

https://yourstore.com/products/shoes?utm_source=facebook&utm_medium=ads&utm_campaign=spring_sale

Each tag gives GA4 (or any analytics tool) context about the visit.

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✅ Ways to Automatically Add UTM Parameters on Shopify

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1. Use Shopify's Built-in Link Builder for Marketing Campaigns

Shopify’s Marketing section lets you create campaigns and will automatically tag URLs with UTMs.

Steps:

• Go to Shopify Admin > Marketing

• Create a new campaign (e.g., Facebook Ad, Email)

• Shopify appends UTM tags like:

  utm_source=shopify&utm_medium=facebook&utm_campaign=spring_sale
  

But this works only for campaigns built inside Shopify.

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2. Add UTM Parameters Dynamically in Theme Code

If you want to auto-append UTM parameters to specific links, you can do it via JavaScript in your theme.

Use this snippet in theme.liquid before the closing </body> tag:

<script>
  document.addEventListener("DOMContentLoaded", function() {
    const links = document.querySelectorAll('a[href*="/products/"]');
    const utm = "?utm_source=website&utm_medium=link&utm_campaign=shopify_auto";
    links.forEach(link => {
      if (!link.href.includes("utm_")) {
        link.href += utm;
      }
    });
  });
</script>

✅ Adds UTM to all product links
❌ Doesn’t work for image-only or button-based links (without href)

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3. Use a URL Redirect App to Append UTM Automatically

Apps like:

• Easy UTM Tracking

• UTM.io

Let you set rules to automatically append UTMs to:

• Email campaigns

• Paid traffic

• Referral sources

These apps can sync with GA4 and even tag based on session data.

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4. Add UTM Tags to Klaviyo Email Links Automatically

If you’re using Klaviyo (or any email tool), you can configure auto UTM parameters.

Steps for Klaviyo:

• Go to Account > Settings > Email

• Enable default UTM tags:

  utm_source=klaviyo&utm_medium=email&utm_campaign={{ campaign.name }}
  

Every link in your emails will now include those tags, automatically.

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5. Use Google Tag Manager (GTM) for Dynamic UTM Capture (Advanced)

With GTM, you can:

• Capture UTM parameters from the landing URL

• Store them in cookies

• Send them along with every GA4 event for attribution

Example:

gtag('event', 'page_view', {
  campaign_source: getUTM('utm_source'),
  campaign_medium: getUTM('utm_medium'),
  campaign_campaign: getUTM('utm_campaign')
});

This doesn’t add UTMs to links but ensures attribution still works even if user navigates multiple pages.

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🧪 Bonus: Track UTM in GA4 Events & Conversions

Make sure to enable custom dimensions in GA4 for:

• utm_source

• utm_medium

• utm_campaign

This allows you to segment purchases by source directly inside GA4 reports and Explorations.

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🛑 Mistakes to Avoid

Mistake	Fix
Manually tagging every link	Use dynamic code or a UTM app
Forgetting to tag email links	Set global UTM rules in Klaviyo or app
Ignoring post-click attribution	Use GTM to store UTM in cookies
Duplicating UTMs on links	Add a check in script (!link.href.includes("utm_"))

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✅ Summary

Method	Ideal For	Difficulty
Shopify Marketing builder	Ad/email campaigns in Shopify	Easy
JavaScript auto-appender	Site-wide product/internal links	Moderate
UTM apps	Scaling campaigns & reporting	Easy
GTM + cookies	Deep attribution tracking	Advanced

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🤝 Need Help Setting Up UTM Tracking That Scales?

At RootSyntax, we help eCommerce brands streamline UTM setup and unlock deeper insights in GA4 and Klaviyo.
👉 Reach out here to automate your campaign tracking.