---
title: "First-Party Segments"
slug: "first-party-segments"
tags: ["first party segment", "fps", "saved segments"]
updated: 2026-01-20T12:19:41Z
published: 2026-01-20T12:19:41Z
canonical: "academy.insiderone.com/first-party-segments"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://academy.insiderone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# First-Party Segments

You may keep cookies on your website that contain information about your users or user segments. You can use this information for third-party or internal segmentation, such as segmenting users who have made a large number of purchases of white t-shirts or users who provided their email address during sign-up.

First-party Segments (FPS) empower you to target your users based on custom dataset values stored in [Local Storage](/docs/insider-cookies-local-storage-session-storage) and First-Party Cookies.

> [!NOTE]
> The FPS segments don't generate new users; instead, they organize existing users into segments based on their attribute values.

> [!NOTE]
> When you create a new attribute on the [Custom User Attributes](https://academy.useinsider.com/docs/create-and-edit-custom-attributes-events) page, it might not appear right away in the FPS segments dropdown if there’s no data yet. Once the attribute contains data, it will automatically become available in the dropdown.

## First-Party Segments Listing Page

To find the following details of your First-Party Segments, navigate to **Audience** > **Segments** > **First-Party Segments**.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/image-JZT8DKD4.png)

- **Select Tags:** Displays the segments based on the tags.
- **Search**: Describes the search criteria. You can search for a segment by email, name, UUID, or phone number.
- **Segment ID:** Displays a unique ID to differentiate the segments.
- **Name**: Specifies the name of the segment you assign while creating segments. When you click the Segment Name or Filters, you are redirected to the Details page.
- **Tags**: Displays the tags that you have assigned.
- **Export**: Exports the details of the dynamic segment to a CSV file.
- **Add Set of Rules**: Adds rules to the segment.
- **Menu (three vertical dots)**: If you click the menu against a segment, you can see the following options:
  - **Pin to Top:** Use it to pin the selected dynamic segment at the top. If the dynamic segment is already pinned, this becomes **Unpin**.
  - **Edit Tags:** Use it to edit the tags assigned to the segment.
  - **Delete**: Use it to remove a segment permanently.

## Create a First Party Segment

1. To create a First Party Segment, click the **Create** button on the First-Party Segments listing page.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/image-LSTOMKHY.png)

1. Enter a short, descriptive name and click the **Create** button. You can also select tags or create new ones to use as a filter later on.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/image-CZBZLXE3.png)

1. You can choose default attributes, such as Phone Number, or a custom attribute that suits your use case.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/Screenshot%20at%20Jun%2003%2018-03-10.png)

For example, you can see a custom attribute that you can use to get the “shopids” from your website on the [Events and Attributes](/docs/attributes-events-overview) page.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/image-S43AAXTQ.png)

1. After selecting the attributes, upload the CSV file containing the attributes you want to segment.

> [!NOTE]
> Select the correct option about the CSV file that has a header row.

![](https://cdn.document360.io/c6df4583-da94-4cb2-bb8a-be0cbdd11109/Images/Documentation/Screen%20Shot%202023-01-09%20at%2011.50.54.png)

> [!NOTE]
> The phone number validation system detects issues, such as redundant country codes or incorrect formats, and only accepts valid numbers. Whether uploaded with or without a country code, all phone numbers are automatically standardized to the correct format.

1. Click **Save and Continue** to upload it. You will see that the file has been uploaded, which means you have created the FPS segment.

## Related

- [Dynamic Segments](/dynamic-segments.md)
- [Upload First-Party Segments](/first-party-segments-api.md)