# "tw Ecom Analytics Ga4"

> "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.".

- Skill: `charlieviettq/tw-ecom-analytics-ga4` (Agent Skill)
- Install (CLI): `npx skillmds@latest add charlieviettq/tw-ecom-analytics-ga4`
- Raw SKILL.md: https://api.skillmd.com/api/skills/charlieviettq/tw-ecom-analytics-ga4/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Data & Analytics
- Author: charlieviettq (https://skillmd.com/u/charlieviettq)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/charlieviettq/tw-ecom-analytics-ga4

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# 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_