> For the complete documentation index, see [llms.txt](https://docs.antsomi.com/cdp-365-user-guide-en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.antsomi.com/cdp-365-user-guide-en/data-hub/business-objects/data-objects/attributes/computed-attribute/unique-list.md).

# Unique List

Unique List returns a list of unique values ​​of an event attribute

## Unique List Configure

### General Information

* **Object:** the corresponding Object that you chose to create the attribute
* **Group attribute:** Group contains attributes that have the same characteristic or usage. [See more about Groups](/cdp-365-user-guide-en/data-hub/business-objects/data-objects/groups.md)
* **Attribute type:** [type of attribute](#kieu-thuoc-tinh) you chose to create
* **Attribute name:** name of the attribute
* **Attribute internal code:** code of the attribute
* **Description:** information describes the attribute

{% hint style="warning" %}
Note: the attribute code does not allow prefixes: number\_, sgmt\_, aud\_ 
{% endhint %}

<figure><img src="https://826840553-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbtU4vFUxT5JkWYHePuoX%2Fuploads%2FfeAHNMkVk0PA7gAg9qCM%2Fimage.png?alt=media&amp;token=75b13dd5-e15a-4b12-a1dd-66d9b98ebcd8" alt=""><figcaption></figcaption></figure>

### Setting

* **Time range**: time range that this attribute is computed
* **Events:** the event will be computed
* **Sources**: sources that event is logged
* **Event Attribute**: attribute of the event
* **Sort by**: you can sort by ***Tracked time*** or ***Frequency***
* **Sort order**: you can sort by ***Ascending*** or ***Descending***
  * **Get all elements (Maximum 100 elements):** the list contains all elements (Maximum 100 elements)
  * **Get the top \_\_ elements (Maximum 100 elements):** the list contains the top \_\_ of elements (Maximum 100 elements). For instance, get ***the top 3 elements***
* **Add condition**: Condition that the unique list attribute is computed. See more about [Conditions](/cdp-365-user-guide-en/annotation/conditions.md)
* **Attribute usage setting**:
  * **Enable Data Encryption**: mark data encoding for this attribute

<figure><img src="https://826840553-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbtU4vFUxT5JkWYHePuoX%2Fuploads%2FjJHD1QKMZXQTlwk9eeqX%2Fimage.png?alt=media&amp;token=610fe951-88ee-4144-a872-f299532f0cf1" alt=""><figcaption></figcaption></figure>

### Computation schedule

The schedule that the attribute is computed

See more about the [Computation Schedule](broken://pages/e485ErmJLYjqXpBEEBFU#computation-schedule)

### Notification Setup

* **Account**: set up account(s) receiving notification&#x20;
* **Notify options**: the notification can be sent by email or pushed notification when the computation completes success or fail

<figure><img src="https://826840553-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbtU4vFUxT5JkWYHePuoX%2Fuploads%2FHIa59ilCmWpvPCzkATRy%2Fimage.png?alt=media&amp;token=a735a94e-b343-4519-9399-ffe473445cb7" alt=""><figcaption></figcaption></figure>

***For example***, find the top 3 most purchased brands of the year

<figure><img src="https://826840553-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FbtU4vFUxT5JkWYHePuoX%2Fuploads%2FwrjR7y5RuwRUeZZtR6w5%2Fimage.png?alt=media&amp;token=49e0ac74-d9ea-4116-8c06-0a47091af197" alt=""><figcaption></figcaption></figure>


---

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