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

# Integration

> Add Fabric Lens to your Shopify theme so the pattern visualizer appears on your product pages.

## Enable the App Extension in Your Theme

Fabric Lens requires adding an app block to your Shopify theme so the pattern visualizer displays on your product pages. No code required.

1. In your Shopify admin, go to **Online Store > Themes**.
2. Click **Customize** on your active theme.
3. Navigate to the **product page template** in the theme editor.
4. Click **Add block** or **Add section** and search for **Fabric Lens**. Select and add the app block.
5. Position the block on the page where you want the pattern visualizer to appear.
6. Click **Save**.

<Note>
  You can also enable the extension directly from the [Dashboard](/fabric-lens/dashboard) by clicking **Step 1: Enable extension on your store**.
</Note>

## Verify the Integration

After saving, visit a product page on your store and confirm the Fabric Lens pattern visualizer is visible. If it does not appear, check that:

* The correct product page template is selected in the theme editor.
* The product belongs to the collection configured in the [Rules](/fabric-lens/rules) page.
* The Fabric Lens app block is positioned above the fold on the page.