> For the complete documentation index, see [llms.txt](https://help.littledata.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.littledata.io/sources/shopify/headless-shopify/upgrading-to-the-advanced-tracking-script.md).

# Upgrading to the Littledata Pixel

The **Littledata Pixel** is our recommended approach for headless Shopify setups and replaces our [previous headless SDK](https://www.npmjs.com/package/@littledata/headless-shopify-sdk), bringing you several new benefits:

* Robust event tracking for headless stores to Google Analytics, Google Ads, Meta Conversions API, TikTok Events API, and Pinterest Conversions API
* [Tracking redundancy](/sources/shopify/littledata-pixel.md#redundant-tracking-setups) for Meta, TikTok, and Pinterest, offering better event reliability
* Supports the latest Shopify features, such as accelerated checkouts

{% hint style="warning" %}
**Deprecation notice**

Support for the previous headless SDK is being phased out. Starting **January 2026**, Littledata will no longer process tracking calls via the headless SDK.
{% endhint %}

## **Upgrading to the Littledata Pixel**

Upgrading is made easily via the instructions in our in-app dashboard.\
For a complete installation guide and information about the Littledata Pixel, please refer to our [documentation](/sources/shopify/littledata-pixel.md).

{% hint style="info" %}
The checkout must be on the same root domain — e.g. [store.domain.com](https://store.domain.com) and [checkout.domain.com](https://checkout.domain.com)
{% endhint %}

## Compatibility with the previous headless SDK

### Can both solutions run at the same time?

Yes. The Littledata Pixel and the headless SDK can coexist on your store without causing any conflicts; however, we recommend the pixel as the single headless solution.

### Will this result in duplicate event tracking?

No, duplicate event tracking will not occur. The Littledata Pixel loads only on Shopify checkout and thank you pages, while the headless SDK is not loaded on the Shopify checkout.


---

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