> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://samsungads.ferndocs.com/getting-started/audiences/audience-segments/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://samsungads.ferndocs.com/_mcp/server.

# Audience segments

Audience Builder segments are a specific type of content being targeted within an audience, such as Linear TV, App Launch, Linear Ads, and more. An audience may have one or more segments — a segment is a subset of an audience that is targeted with specific content.

> **Info**
>
> Contact your Account Manager to enable segment features for your account.

## Segment types

Samsung DSP supports the following segment categories:

| Segment type        | Data source         | Description                                                         |
| ------------------- | ------------------- | ------------------------------------------------------------------- |
| **Linear TV**       | Samsung TV (ACR)    | Target viewers based on specific TV shows or channels they watch.   |
| **Linear Ads**      | Samsung TV (ACR)    | Target viewers based on ads they have been exposed to on linear TV. |
| **Video Games**     | Samsung TV (ACR)    | Target viewers based on video game content played on Samsung TVs.   |
| **Video on Demand** | Samsung TV (ACR)    | Target viewers based on VOD content consumption.                    |
| **App Launch**      | Samsung TV / Mobile | Target users based on app usage on Samsung TVs or mobile devices.   |
| **App Category**    | Samsung Mobile      | Target users based on mobile app category usage.                    |
| **Website Pixel**   | Samsung DSP         | Target users based on campaign website pixel exposures.             |

## Size per segment

You can calculate the size of individual segments associated with your audience:

1. Open an existing audience or a new audience containing segments.
2. Click **Please Refresh** (or click the refresh icon) in the **Audience breakdown** panel.
3. Review the individual segment counts.

> **Warning**
>
> Audiences containing many segments (100+) might produce an error message. Click the Audience Breakdown refresh icon on the desired segment to resolve this.

## Mobile app data segments

Samsung Ads uses Mobile App Name and App Category to target mobile-based behavior in Samsung DSP. Data is gathered from Galaxy devices regarding app usage, engagement duration, timing, and frequency.

Samsung DSP auto-generates a corresponding Mobile-TV audience linked using Samsung's Device Graph solution, which links TVs in one household to corresponding mobile devices.

### Build mobile app segments

1. Open **Samsung Mobile** from the left-navigation panel.
2. Choose either **App Category** or **App Name** to define your segments.
3. Define a **Study Period** or use a **Rolling Window** for continuously refreshed data.

> Understand the segment types available in Audience Builder