Google Meridian’s No-Code MMM Just Killed the Python Barrier
In February 2026, Google added a no-code Scenario Planner to Meridian, removing the Python barrier that kept Marketing Mix Modelling out of reach for SMB WooCommerce stores. But Meridian still requires at least 2-3 years of weekly, channel-level, currency-consistent data with geo splits — exactly what fragmented WooCommerce pixel stacks fail to produce. With 73% of GA4 implementations losing 30-40% of data to silent misconfiguration (SR Analytics, 2025), and platform-reported ROAS systematically 2-5x higher than incremental ROI (Cassandra Benchmarks, 2026), the bottleneck has shifted from Python to data plumbing. A server-side first-party pipeline writing to BigQuery produces the data shape Meridian needs.