Unifying Sales Data Across 75+ Stores and E-Commerce Channels With Automated, Cloud-Native Data Pipelines

Building a centralized, automated sales data pipeline across offline (POS + ERP) and online (Shopify + Amazon) channels to enable real-time sales reporting, inventory visibility, and performance tracking.

Technology
Data Engineering
Business Intelligence & Visualization
Data Warehousing & Lakehouse
Geography
North America
Industry
Consumer Goods & Retail

Key results

85% reduction

in reconciliation errors across POS, ERP, and online channels

3.5 hours reduction

in daily report delivery time — now available by 8 AM instead of 11:30 AM

15% uplift

in underperforming store revenue driven by real-time visibility

18% increase

in inventory turnover by unifying online and offline stock views

About the Client

A mid-sized U.S. apparel retailer operating 75+ physical stores with a growing presence on e-commerce platforms like Shopify and Amazon. The company manages multiple brands across casualwear and athleisure categories and has regional teams overseeing sales performance.

Key Challenges

Fragmented sales data across POS, ERP, and online platforms

Manual reconciliation delays of 1–2 days for consolidated reports

Lack of unified view for product performance across regions

Our Approach

  • Mapped all source systems including POS, ERP, Shopify, and Amazon
  • Used DataChannel for rapid integration of marketing and e-commerce data
  • Applied dbt for business logic, metric standardization, and curated data models

Implemented Solution

Data Engineering

  • Used DataChannel to ingest and sync sales, returns, and ad data from Shopify, Amazon, Meta Ads, and Google Ads
  • Built Airflow-managed workflows for POS and ERP data integration
  • Standardized product and location mappings for unified reporting

Centralized Data Warehousing

  • Centralized all cleaned data into Amazon Redshift
  • Applied business logic using dbt for gross margin, category contribution, and store-level KPIs
  • Created reusable data marts for sales, finance, and inventory analytics

Business Intelligence & Visualization

  • Built executive dashboards for leadership and zone-wise views for regional managers in Tableau
  • Enabled daily sales performance tracking by channel, category, and store
  • Delivered drill-down insights for stock rotation, markdown impact, and top-selling SKUs

Technologies Used

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