> For the complete documentation index, see [llms.txt](https://subify-1.gitbook.io/sdk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://subify-1.gitbook.io/sdk/subify-sdk-for-developers/loading-sdk.md).

# Loading SDK

Subify SDK is automatically loaded if the Subify app embed block is enabled in your theme. However, if you are using a non-standard Shopify theme (such as a headless theme) or the app embed block is disabled, you should load the SDK manually with a `script` tag like below:

```html
<!-- load subify sdk -->
<script src="https://cdn.hengam.io/subify/subify-sdk.js" defer></script>
```

Once the SDK is loaded successfully, a `subifySDK` object will be added to the `window` object, which contains methods to work with the SDK.

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