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Audiences let you define segments of contacts based on their behavior, attributes, and history. Instead of sending to everyone, you can target specific groups for more relevant messaging.

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What is an Audience?

An Audience is a saved set of filter conditions that define which contacts should receive a message. When you schedule a campaign, you select one or more audiences to target.

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Why Use Audiences?

Higher Engagement

Relevant messages get more clicks

Reduce Opt-Outs

Don’t over-message uninterested contacts

Maximize Revenue

Target high-value segments

A/B Testing

Test messages on specific groups

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How Audiences Work

Audiences are evaluated at send time. The contacts included can change between sends based on recent activity. Example: “Contacts who clicked in the last 7 days”
  • On Monday: includes 5,000 contacts
  • On Friday: includes 6,200 contacts (as more people click)

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Condition Types

Build audiences using these filter types:

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AND/OR Logic

Combine conditions with flexible logic:
Contact must match all conditions:
Matches contacts who clicked recently, have purchased, AND are in California.

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Multi-List Targeting

Audiences can span multiple sending lists. If a contact matches the audience conditions on any of the selected lists, they’re included. This is useful when:
  • You have contacts on multiple lists
  • You want to target based on behavior across lists
  • You’re running a cross-brand campaign

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Audience Size

Each audience shows an estimated size:
  • Cached Size: Updated periodically (fast but may be slightly stale)
  • Live Count: Calculated on demand (accurate but slower)
The cached size is shown in the audience list. Click Refresh Sizes to recalculate cached sizes for audiences that are more than an hour stale (up to 20 per call, once per minute); open an audience to see its live count.

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Best Practices

Begin with a simple audience and add conditions as needed. It’s easier to refine than to debug a complex audience that’s too narrow.
Watch the Estimated Size panel while you build — it updates automatically and breaks the total down by list, so you can sanity-check your conditions before sending.
Use names like “High-Value CA Clickers” instead of “Audience 1”. You’ll thank yourself later.
Select multiple audiences when scheduling a campaign. Contacts matching ANY audience are included.

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Next Steps

Create an Audience

Step-by-step guide

Segmentation Logic

AND/OR deep dive

Dynamic vs Static

How audiences are evaluated

Quick Start

Build your first audience