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## How it works

The client calls the Optimizely Personalization API which, primarily, returns product recommendations or content.

  1. The client sends the API a request containing information about the user and the order.

  2. The Personalization API returns a list of recommended products.

You can show recommendations on a call-center screen, a till/terminal in a shop, an email receipt, a printed receipt (such as being included in the order packaging), and so on.

Personalization API

This section describes the Personalization API used for applying personalization features for the Optimizely platform.

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