---
updatedAt: 2025-05-05T20:15:29.000Z
agentTools:
  projectIndex: https://docs.magentamarketing.com/llms.txt
---

# Create Custom Audiences

The Audience Marketplace offers audience data at scale. Create, view, and export custom audience segments in minutes to tailor your mobile targeting strategy with verified device-level data. Get started by creating custom audiences, learn how below.

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**Step 1.** Open Advanced Builder by selecting “Advanced Builder” from left menu

![2497](https://files.readme.io/c2dfdcb-adv_builder.png "adv builder.png")

**Step 2.** Name your audience

![2495](https://files.readme.io/75d13e1-name_audience.png "name audience.png")

**Step 3.** Select your first targeting filter. Options include App Ownership, Persona, and Demographics, as well as individual data partners.

![2492](https://files.readme.io/39b5ca3-select_attributes.png "select attributes.png")

**Step 4.** Follow on-screen prompts to add desired targeting attribute. Estimated Device Count will update as targeting filter is added.

![2518](https://files.readme.io/d580e29-select_attributes_detail.png "select attributes detail.png")

**Step 5.** Continue to modify your audience to fit targeting goals. You can even exclude attributes.

![2494](https://files.readme.io/99eb3eb-select_more_attributes.png "select more attributes.png")

**Step 6.** All set? Click Save.

![579](https://files.readme.io/2f05552-save_audience.png "save audience.png")

**Now what?** Magenta Advertising Platform will calculate the size of your custom audience. This calculation process generally takes just a few minutes. Once complete the device count will change from "calculating" to the accurate number. You can click to view and analyze your segment immediately, or export your custom audience to the execution channel of your choice for targeting.

![2489](https://files.readme.io/bc6edc1-wait_for_audience.png "wait for audience.png")

What’s Next? **Exporting Audiences.**Find out [How To here](http://docs.pushspring.com/docs/how-to-export).