Full Answer

This is one of the core advantages of separating your data asset from your website platform. GA4 ties your analytics to a specific property — change domains, restructure your site, or switch platforms, and your GA4 history either resets or requires complex property migration that rarely preserves everything. Your Data Tree in BigQuery has no dependency on your website's domain, platform, or hosting.

The migration process has two parts. The historical data requires nothing — it already lives in BigQuery tables that you control through your Google Cloud project. Those tables remain exactly where they are, queryable as before, regardless of what happens to the website that generated the original events.

The collection pipeline requires reconnection. On a new WooCommerce site, that means installing the inPIPE plugin, configuring your server-side tracking endpoint, and pointing event output to the same BigQuery dataset. The first event from your new site lands alongside years of historical data from your old site. Attribution queries, cohort analysis, and LTV calculations continue with an unbroken timeline.

If you switch platforms entirely — from WooCommerce to Shopify, for example — the collection mechanism changes but the destination stays the same. Shopify's webhook system feeds the same BigQuery tables through a different pipeline. The schema may need adjustment, but the historical record remains intact.

Data you own in infrastructure you control is portable by default. Data that lives inside a platform is portable only if the platform allows it.