> ## Documentation Index
> Fetch the complete documentation index at: https://docs.topsort.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Build Smarter Audiences from Your Existing Segments
> Combined Lists Audience Builder—create precise targeting audiences by merging your uploaded customer lists
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February 9, 2026
Ad Platform
New Feature
**Why We Built This**
You had customer lists. Good ones—uploaded from your CDP, segmented by behavior, purchase history, loyalty status. But each list lived in its own silo. Want to target "high-value customers who also browsed electronics"? You'd need to manually cross-reference lists and upload yet another one. Audience upload got you started. Combined Lists get you to precision.
## What Changed
You can now create audiences by combining your existing uploaded customer lists—no more re-uploading or manual merging. From the new **Audience Hub**, hit **New Audience → Create Audience from Lists** to open the Audience Builder.
New Combined Audience
Audience Information
Audience Name
Type a name
Segment ID
Type a segment ID
Segments
Create combined segments for your campaign based on your previous created audiences. Note: It may take a few minutes after creating your segment for the size to be calculated.
Include i
Any or All
Select ▾
Select segments (Max 3)
Select segments to combine ▾
+
Exclude i(Optional)
Select segments (Max 3)
Select segments to combine ▾
Back
Create
The builder uses **include** and **exclude** blocks to give you full control over who ends up in your audience:
* **Include blocks**: Add up to two include groups, each with up to 3 uploaded lists. Within each group, choose **Any** (union) or **All** (intersection) to control how lists combine. Groups are connected by OR.
* **Exclude block**: Optionally exclude users from up to 3 lists. Anyone in the exclude list is removed from the final audience.
## What You Get
* **Visual audience builder**: Combine lists with include/exclude logic—no CSVs or spreadsheets needed
* **Flexible logic**: ANY (union) or ALL (intersection) within include blocks, OR between blocks, and exclusion support
* **Up to 3 lists per block**: Layer multiple segments for precision targeting
* **Audience Hub**: See all your audiences—uploaded and combined—in one place, with source type clearly labeled
* **Campaign-ready**: Combined audiences show up in the campaign creation flow just like uploaded lists
## Who This Helps
**Campaign managers**: Build nuanced audiences without going back to your data team. Combine "Holiday Shoppers" with "High Spenders" in a few clicks.
**Marketplace admins**: Give vendors more powerful targeting tools without requiring complex CDP integrations.
**Vendors**: Target the exact users you want by layering your customer segments—no more one-size-fits-all campaigns.
Interested in the Audience Builder? Reach out to your account team to get it enabled for your marketplace.
## What Changed
You can now create audiences by combining your existing uploaded customer lists—no more re-uploading or manual merging. From the new **Audience Hub**, hit **New Audience → Create Audience from Lists** to open the Audience Builder.