Case Study: eCommerce

How an eCommerce Brand Improved Tracking Accuracy with GTM and Server-Side Setup

How we partnered with Anonymized eCommerce Client to rebuild their tracking architecture and protect their marketing performance.

Overview

The client runs a high-volume Shopify store and heavily relies on Meta and Google Ads. Changes in browser tracking resulted in significant data loss and hindered their Smart Bidding algorithms.

The Challenge

  • Missing conversions (20-30% discrepancy between Shopify backend and Meta/GA4).

  • Consent management issues where users who selected 'Partial' broke checkout tracking.

  • Cross-domain problems between main site and third-party checkout app.

The PowerData Approach

1

Deployed Server-Side GTM on Google Cloud to handle all vendor requests.

2

Consolidated tracking into a robust dataLayer schema.

3

Implemented Meta Conversions API (CAPI) with advanced deduplication.

4

Configured Google Consent Mode v2 to allow for conversion modeling without dropping cookies on rejected users.

Engagement Summary

ClientAnonymized eCommerce Client
Services Deployed
Google Tag Manager SetupServer-Side TrackingGA4 Configuration
Deliverables
  • descriptionTag map spreadsheet
  • descriptionServer-Side architecture diagram
  • descriptionLooker Studio operational dashboard

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