E-commerce revenue attribution across five booking engines

A Fortune 500 retailer was double-counting revenue across three third-party booking engines, and no one could say which channel actually drove a sale. Finance and marketing were reporting different numbers in every meeting.

The problem

Revenue was being double-counted across three third-party booking engines. Cross-domain tracking was misconfigured, and enhanced ecommerce events were inconsistent between booking engines. Finance and marketing were working from different numbers.

What I did

• Rebuilt cross-domain tracking with consistent linker and referral-exclusion config across all five booking domains
• Standardised the enhanced-ecommerce dataLayer across every engine
• Consolidated everything into a single blended Looker Studio report
• Validated revenue figures against backend booking data

The result