---
schema_version: "1"
id: 6e9ea7cd16c7dfbdfddc70fda1beb9eaf79e9dc0010f256153806ba05282c1b3
title: Define Segments for Marketing Cloud Personalization
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_pers_segment.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: d48161e269846de52e3087c943dc06b092381af01c952f57a916637a4f0e0131
description: Audiences are the specific individuals, referred to as users, or accounts, such as companies and organizations, that qualify to be members of a segment. You can create segments to group audiences according to a set of criteria that you define.
products:
  - Marketing
  - Salesforce Personalization
release: "264"
---
# Define Segments for Marketing Cloud Personalization

Audiences are the specific individuals, referred to as users, or accounts, such as companies and organizations, that qualify to be members of a segment. You can create segments to group audiences according to a set of criteria that you define.

- **[About Audience Segments](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_about.htm&release=264.0.0&type=5)**  
    A segment is a real-time grouping of users or accounts, based on criteria you define using a set of segment categories and rules. With segments, you can add another layer of personalization to your campaigns, and gain deeper insight into your customers. Segments can even include groups you've already defined in your CRM, DMP, or marketing automation platform.
- **[Segment Categories and Rules](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_category_rule.htm&release=264.0.0&type=5)**  
    Marketing Cloud Personalization provides various categories and accompanying rules for use with segments. When a user interacts with one of your channels, the Personalization system identifies the segments they belong to based on real-time session activity. Because segment updates happen in real time, membership changes occur immediately.
- **[Segment Properties](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_properties.htm&release=264.0.0&type=5)**  
    A segment is a real-time grouping of users, or accounts, based on criteria you define using a set of segment categories and rules. With segments, you can add another layer of personalization to your campaigns, and gain deeper insight into your customers.
- **[Create Segments for Marketing Cloud Personalization](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_create_segment.htm&release=264.0.0&type=5)**  
    There are many ways in which you can create a segment.
- **[Enable a Disabled Segment for Marketing Cloud Personalization](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_enable.htm&release=264.0.0&type=5)**  
    Re-enable a segment that has been disabled. For example, a segment can be disabled following a bulk deletion of profiles associated with the segment.
- **[Use Segments with Marketing Cloud Personalization](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_use.htm&release=264.0.0&type=5)**  
    Use segments to add another layer of personalization to your campaigns, and gain deeper insight into your customers.
- **[View Segment Statistics for Marketing Cloud Personalization](https://help.salesforce.com/s/articleView?id=mktg.mc_pers_segment_view_segment_statistics.htm&release=264.0.0&type=5)**  
    Review segment performance across all your segments on the User Segments screen.

#### See Also

- [_Video_: Add a Segment](https://www.youtube.com/watch?v=QMwdxzMuOEA)
- [_Video_: Clone and Update a Segment](https://www.youtube.com/watch?v=j1REmy3vX1U)
- [_Video_: Troubleshoot a Segment](https://www.youtube.com/watch?v=Hjprn9l8vKk)
- [_Video_: Track KPIs Within a Segment](https://www.youtube.com/watch?v=yoMz1nFISIc)