google-tagmanagerlisted

# Google Tag Manager ## Overview Expertise for Google Tag Manager (GTM) covering container setup, tag configuration, triggers, variables, data layer implementation, debugging, custom templates, and API automation. See the reference files below for detailed guidance on each topic. ## When to Use This Skill Invoke when setting up or configuring GTM containers, tags, triggers, or variables; implementing the data layer; debugging with Preview mode or Tag Assistant; building custom templates; automating via the REST API; or optimising container performance and consent management. ## Quick Start 1. Create a GTM account at [tagmanager.google.com](https://tagmanager.google.com) 2. Create a container (Web, iOS, Android, or Server) 3. Install the container snippet - see [setup.md](references/setup.md) 4. Configure tags, triggers, and variables 5. Test in Preview mode - see [debugging.md](references/debugging.md) 6. Publish ### Basic Tag Configuration ```text Example: Google Tag (GA4) Tag Type: Google Tag Tag ID: G-XXXXXXXXXX Trigger: All Pages ``` See [tags.md](references/tags.md) for comprehensive tag documentation. ### Data Layer Push ```javascript window.dataLayer = window.dataLayer || []; dataLayer.push({ 'event': 'custom_event', 'category': 'engagement', 'action': 'button_click', 'label': 'CTA Button' }); ``` See [datalayer.md](references/datalayer.md) for data layer patterns. ## Core Concepts **Tags** are snippets of code that execute on your site (e.g., GA4