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

# Extract Dynamic Variable Node

> Extract information from the conversation and store it as dynamic variables.

Extract dynamic variable node is used to extract information from conversation and store them as dynamic variables. It's not intended for having a conversation with the user.

## Add a Variable

To create a variable, fill in the following details:

* **Variable Name** – A short name to reference this variable
* **Description** – A brief explanation of what this value should be
* **Variable Type** – Choose from Text, Number, Enum, or Boolean
* **Enum Options** – Options to choose from (only when type is Enum)

## Variable Types

| Type    | Description                    | Examples                     |
| ------- | ------------------------------ | ---------------------------- |
| Text    | Any word or sentence           | `"headache"`, `"John Smith"` |
| Number  | A numeric value                | `42`, `98.6`                 |
| Enum    | A value from a predefined list | `"Yes"`, `"No"`, `"Maybe"`   |
| Boolean | True or false                  | `true`, `false`              |

## Node Settings

| Setting              | Description                                                            |
| -------------------- | ---------------------------------------------------------------------- |
| Global Node          | See Global Node guide.                                                 |
| LLM                  | Choose a different model for this node — used for variable extraction. |
| Fine-tuning Examples | Fine-tune transition behavior. See Finetune Examples guide.            |