Clean, BigQuery-Ready GA4 Implementation
Default GA4 installations suffer from `(not set)` landing pages, inflated "Unassigned" traffic, missing item arrays, and broken payment gateway referrals. I engineer audit-proof GA4 architectures from the `dataLayer` up.
1. Full eCommerce Schema
Standardized `view_item`, `add_to_cart`, `begin_checkout`, `add_payment_info`, `purchase`, and `refund` events with complete item-level parameters.
2. Cross-Domain & Referral Fixes
Eliminate self-referrals from Stripe, PayPal, Shop Pay, and Calendly so original Google and Meta UTMs stay intact at conversion.
3. Custom Dimensions & Lead Scoring
Event-scoped and user-scoped dimensions for customer tier, net margin, funnel stage, and qualified lead status.
4. BigQuery Native Streaming
Bypass GA4's 14-month retention limit and UI data sampling by streaming raw event tables directly into Google BigQuery.
5. Server-Side GA4 Routing
Route GA4 hits through your first-party subdomain container to extend `_ga` cookie durability on Safari and iOS.
6. Looker Studio Dashboards
Executive scorecards uniting funnel drop-off rates, Google/Meta spend, and verified backend revenue in one view.