> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Segments

> Group Accounts into Segments to deliver tailored benefits — VIP rates, student perks, fee waivers, and personalized rules across Portfolios.

A **Segment** is a group of Accounts that share a characteristic, such as a product tier or a customer type. Financial institutions use Segments to apply tailored rules, services, and conditions to each group.

Each Segment has a **Segment ID**, a unique identifier. Financial institutions use this ID to track and manage each Segment.

#### Examples

* **Black or diamond (Cards)**: a premium group of card accounts for customers who want exclusive benefits.
  * Included benefits: VIP lounge access, insurance coverage, a dedicated concierge, and loyalty rewards.

* **Student account (Banking Accounts)**: a group of banking accounts for students.
  * Included benefits: no account fees, cashback on education purchases, and discounts on cinemas and events.

## Segment structure

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* **Segment > Accounts:** You tag each Account with a `segmentId` (a Segment UUID) to add it to a Segment.
* A Segment belongs to one Ledger. Accounts in different Portfolios can share the same Segment.

## Key characteristics

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* Segments give you a scalable way to apply tailored policies to Accounts.
* A Segment can include many Accounts.

## Managing Segments

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You manage your Segments through the API or Lerian Console.

### Via API

* [List Segments](/en/reference/midaz/list-segments) — View all Segments in your workspace.
* [Retrieve a Segment](/en/reference/midaz/retrieve-a-segment) — Get the details of a specific Segment.
* [Create a Segment](/en/reference/midaz/create-a-segment) — Register a new Segment.
* [Update a Segment](/en/reference/midaz/update-a-segment) — Edit an existing Segment.
* [Delete a Segment](/en/reference/midaz/delete-a-segment) — Remove a Segment you no longer use.

### Via Lerian Console

You view, create, edit, and delete Segments on the Segments page in the Midaz Module of Lerian Console.

[**Learn more in the Managing Segments guide.**](/en/midaz/console/managing-segments)