Omnichannel Ad Spend & ROI Tracking Pipeline (n8n)

Automated Omnichannel Marketing & Revenue Sync

n e-commerce agency managing over 10 different brands was losing 15+ hours weekly to manual data entry. Media buyers had to log into Meta, Google Ads, and TikTok to pull spend data, then log into various WooCommerce stores to calculate daily sales and cancellation rates. This manual process delayed critical ROI/ROAS reporting and caused data discrepancies.

The Solution:

I architected a fully automated Internal ETL Pipeline using n8n that completely eliminates manual reporting. The system acts as a central nervous system, aggregating cross-platform marketing spend and live store revenue into a single source of truth.

Key Features & Technical Architecture:

Multi-Source Data Extraction: Seamlessly pulls real-time ad spend data from TikTok and Google Ads (via Windsor.ai) and Meta (via native Graph API).

E-commerce Revenue Sync: Integrates directly with multiple WooCommerce instances via REST API to fetch daily sales, calculate net revenue, and track order cancellation/failure rates dynamically.

Advanced Data Transformation: Utilized custom JavaScript nodes to filter, aggregate, and map raw API responses into a clean, unified schema for each specific brand.

Automated Dashboarding: Pushes the processed metrics directly to Google Sheets, instantly updating the agency's performance dashboards.

Robust Error Handling & Logging: Built-in Discord integration provides the team with real-time execution logs, success notifications, and instant alerts if any API endpoint fails.

The Impact:

Reduced manual reporting time by 100%, eliminated human data-entry errors, and empowered the media buying team to make rapid, data-driven budget optimizations based on live ROI and cancellation metrics.