Server Pixels: added subtotal_price to checkout events

Shopify Update: subtotal_price Added to Server Pixel Checkout Events

Date: July 3, 2025,Impact: Improved transaction tracking 

What Changed

Shopify has updated its Server Pixels to include a new field  subtotal_price in three key checkout events:

• checkout_started

• payment_info_submitted

• checkout_completed

This new field reflects the sum of line item prices after product and order-level discounts help.shopify.com+7shopify.dev+7changelog.shopify.com+7

Why It Matters

• Accurate Revenue Attribution: With subtotal_price, your server-side tracking now captures true line-item revenue, excluding discounts.

• Cleaner Data: Simplifies tax or shipping data analysis by separating subtotal from total.

• Better Ad Performance Measurement: Enables more precise conversion value reporting for campaigns tied to Shopify checkout flows.

What You Should Do

1. Update any server-side pixel logic to read and pass subtotal_price.

2. Adjust your analytics or ad platforms to use this field this ensures your conversion values match actual discounted totals.

3. Reconcile data across your systems (e.g., GA4, Meta, Google Ads) to avoid reporting issues.

Bottom Line

This update brings Shopify’s server tracking closer to on-page accuracy making your backend data more reliable and insight-rich. It matters most if you run server-side tracking or care about post-discount revenue figures.

If you’d like help implementing subtotal_price in your Shopify setup or need audit support for your tracking and analytics flows EcomSpiders is here to help. We offer free consultations to ensure your store's data is clean, accurate, and ready for growth.

Reach out at EcomSpiders.com to get started.