> For the complete documentation index, see [llms.txt](https://sdk-doc.tyrads.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sdk-doc.tyrads.com/getting-started/advanced-options/sending-user-segments-user-info.md).

# Sending User Segments / User Info

Sending user segments to our system will allow our system to be able to segment the userbase within the segments you use on your side. As well it will allow us to use this information to detect fraudulent users. 

{% hint style="info" %}
This is related to intialization of the SDK 
{% endhint %}

{% hint style="warning" %}
This is not required, but allows us to be able to indentify fraudulents user based on email/phone numbers. 
{% endhint %}

| Paramater       | Data Type   | Description                                                                                                                                                                                                                                                |
| --------------- | ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| userPhoneNumber | Integer     | <p>Can be used to identify the user to prevent fraud. <br><br>Format the + as  00, example: 0015555551234 for a US number</p>                                                                                                                              |
| userEmail       | email       | Can be used to identify the user to prevent fraud                                                                                                                                                                                                          |
| userGroup       | JSON string | <p>Segment identifier passed as a JSON string, <br><br><code>e.g. "{"promo\_affinity\_ratio":0.42,"dynamic\_payer\_segment":"NonPayer","activity\_segment":"Tier 3","seniority\_segment":"Tier 4","rewarded\_video\_watcher\_category":"High"}"</code></p> |


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