---

name: "tw-ecom-analytics-ga4" description: "Implement GA4 for Taiwan e-commerce — Enhanced Ecommerce events (view_item, add_to_cart, begin_checkout, purchase), TW-specific parameter conventions (含稅 revenue, NT$ currency, 統編 as user property), Looker Studio reporting, and Big Query export. Use when instrumenting a TW store with GA4 or auditing existing GA4 setup. Do NOT use for generic analytics (use ecom-analytics). STATUS: SKELETON — body pending." metadata: category: "WP-01 電商" domain: "ecommerce-tw" layer: "analytics" related_mcps: [] related_skills: ["ecom-analytics", "data-cohort-analysis", "tw-ecom-analytics-benchmarks"] last_verified: "2026-04" status: "skeleton" tags: ["taiwan", "e-commerce", "ga4", "analytics"]

GA4 for Taiwan E-Commerce

STATUS: SKELETON — body pending.

When to use this skill

• Instrumenting a TW store with GA4 Enhanced Ecommerce
• Auditing an existing GA4 setup for TW conventions
• Designing Looker Studio reports for TW KPI
• Setting up BigQuery export
• Attributing across LINE OA / marketplace channels

Do NOT use when

• Generic analytics → ecom-analytics
• Benchmarks only → tw-ecom-analytics-benchmarks

Core concepts

TODO: GA4 event model, 含稅 revenue handling, currency = TWD, content_group usage for 檔期.

Decision tree

TODO: event → parameter mapping for TW conventions.

Implementation guidance

TODO: dataLayer template, tag setup, consent mode, BigQuery export.

Gotchas

TODO: 5-6 pitfalls (含稅 double-count, cross-domain marketplace attribution, LINE IAB tracking block, consent-mode revenue undercount, parameter cardinality limits).

IRON LAW

TODO.

Output Format

TODO.

Related

• ecom-analytics
• tw-ecom-analytics-benchmarks

Last verified: 2026-04