---
title: Building Audiences
slug: echostar-b2b-poc/building-audiences
docTags: 
createdAt: 2026-09-08T13:39:22.129Z
---

Once the B2B entity relationships are established and data imported, you can now begin to build line level audiences with B2B entities.

The audience builder canvas enables you to traverse through B2B custom objects linking person to account entities

The folder tree reflects the B2B union schema and displays all custom objects enabled

::Image[]{src="https://api.archbee.com/api/optimize/1Jp0iolWv35Z_mkI7oUiT/n8AyuYPHW1Aa82nRrbMZE_screenshot-2026-09-09-at-73739-pm.png" size="40" isUploading="false" width="696" height="1362" darkWidth="696" darkHeight="1362" showCaption="false"}

Use the Customer audience profile attributes to qualify the following audience

Line Subscribers Eligible for Boost Upgrade

Two fields are needed which exist acros person and account tables

**UPGRADE\_ELIGIBLE\_CATEGORY = Eligible **

and

**BRAND\_NAME = Boost**

![](https://api.archbee.com/api/optimize/1Jp0iolWv35Z_mkI7oUiT/VUU6ao29bDU3NE5KERZcF_screenshot-2026-09-09-at-74612-pm.png)

The audience is line-level and uses the many:1 cardinality to identify and filter the brand for the eligible line.