> ## Documentation Index
> Fetch the complete documentation index at: https://docs.instantschema.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Google Tag Manager

> Deploy InstantSchema through GTM without touching your code

# Google Tag Manager

Use GTM if your team deploys tags through Tag Manager and can't modify the site's codebase directly.

<Note>
  GTM injects scripts at runtime, so schemas are **client-injected** and automatic detection is not possible. After publishing your container, you must manually confirm the integration in the InstantSchema dashboard.
</Note>

## Setup

### 1. Create a new tag

In your GTM workspace, go to **Tags → New**.

### 2. Choose Custom HTML

Select **Custom HTML** as the tag type.

### 3. Paste the CDN snippet

Copy the CDN tag from the **CDN tab** of your InstantSchema integration panel, and paste it into the HTML field:

```html theme={null}
<script
  src="https://app.instantschema.com/v1/loader.js"
  data-project-id="YOUR_PROJECT_ID"
  async
></script>
```

### 4. Set the trigger

Set the trigger to **All Pages** so the tag fires on every page view.

### 5. Save and publish

Click **Save**, then **Submit** and publish your container.

### 6. Mark as active in the dashboard

Because GTM injects at runtime, the InstantSchema dashboard can't detect it automatically. Once your container is published:

1. Open your project in the [InstantSchema dashboard](https://app.instantschema.com)
2. In the integration panel, click **Mark as active**
3. Confirm in the dialog

The panel will show **Integration active · via Google Tag Manager**.

## Disabling

If you later remove the GTM tag, click **Disable** in the integration panel to reset the status so detection runs again.