> For the complete documentation index, see [llms.txt](https://docs.saas.haut.ai/haut.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.saas.haut.ai/haut.ai/haut.ai-features/algorithms/recommendation-system-legacy.md).

# Recommendation System (legacy)

What the legacy Recommendation System covers, why it is being deprecated, and how to move over to Recommendation System 2.0.

{% hint style="warning" %}
The current **Recommendation System Application** is no longer in active development and will be officially deprecated by the end of this year. It's replaced by the more advanced and flexible **Recommendation System 2.0.**<br>

We encourage all users to transition to Recommendation System 2.0 to take advantage of improved performance, expanded capabilities, and ongoing support.<br>

For migration assistance or additional information, please contact your account manager or refer to the [Product Recommendation System 2.0](/haut.ai/haut.ai-features/product-recommendation-system-2.0.md).
{% endhint %}

## Purpose, Scope and Limitations

<figure><img src="https://245161714-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MWxBX_zB4FnflOpyBGO%2Fuploads%2Fbb469tVdRJanIK4A3S0X%2FRE%20image.jpg?alt=media&amp;token=7b063970-bd73-434c-b6c5-68b7db591428" alt="" width="357"><figcaption></figcaption></figure>

***

## Availability of Application

* Face Metrics 2.0 Application is used to analyse all images, that are collected via [Consumer Apps](/haut.ai/haut.ai-features/consumer-apps.md) for <mark style="color:green;">all</mark> plan clients.
* Face Metrics 2.0 Application is available via API for <mark style="color:purple;">Professional</mark> plan clients. See the detailed API doc: [API for Face Metrics 2.0](/haut.ai/developers/saas-api-overview/api-for-face-metrics-2.0.md).

***

{% hint style="warning" %}
Not a Haut.AI client yet?
{% endhint %}

<a href="https://haut.ai/book-a-demo?utm_source=referral&#x26;utm_medium=saas_docs&#x26;utm_campaign=Docs_SaaS_HautAI" class="button primary" data-icon="user-vneck">Book a demo</a> <a href="https://haut.ai/product/ai-skin-analysis?utm_source=referral&#x26;utm_medium=saas_docs&#x26;utm_campaign=Docs_SaaS_HautAI" class="button secondary" data-icon="external-link">Platform overview on haut.ai</a>


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