> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.closum.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Difference between Lists and Segments

# Lists vs. Segments


### Lists:

* Fixed sets of contacts stored in a database.

* Each user belongs to a specific list.

* If the same contact is in multiple lists, it counts as a duplicate.

* Typically used for distinct subscriber groups (for example, VIP Clients, Leads, Former Clients).


### Segments:

* Dynamic groups within a list, created based on specific filters and criteria.

* Contacts are automatically added or removed as they meet (or no longer meet) the defined criteria.

* Useful for personalized campaigns, such as targeting users based on interaction (for example, those who opened an email in the last 30 days).


### Practical Example:
 
**List**: All subscribers to your newsletter.

**Segment**: Only subscribers who opened the last email.


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