Define script variables for a topic

task brazil Updated Sep 10, 2026 1 min read define-script-variables-topic.md

Use the Variables sidebar to define script variables for a topic. Script variables can store information that is not found in ServiceNow tables. This information can then be shared elsewhere in a topic.

Before you begin

Role required: virtual_agent_admin or admin

About this task

For more information about writing scripts for Virtual Agent, see Virtual Agent scripts.

Procedure

Navigate to All > Conversational Interfaces > Assistant Designer.
Select the Asset library tab.
On the home page, open an existing topic or create a new one.

The Flow tab displays the conversation flow.
In the sidebar, select the Variables tab, then select the Script plus icon [Omitted image "icon-plus-clear.png"] Alt text:.

On the form, fill in the fields.

Field	Description
Variable name	Name of the variable. The name is case-sensitive. Spaces in the name are replaced with an underscore character.
Default value	Default value for the variable. You can use either a static value or a script that specifies a dynamic value for this variable.

Select Save.

Parent Topic:Build conversations in the Asset library in Assistant Designer

Keywords VariablessidebarscripttopicVirtual Agent designer

52 lines · 2.3 KB Wrap lines

---
title: Define script variables for a topic
description: Use the Variables sidebar to define script variables for a topic. Script variables can store information that is not found in ServiceNow tables. This information can then be shared elsewhere in a topic.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/conversational-interfaces/virtual-agent/define-script-variables-topic.html
release: brazil
product: Virtual Agent
classification: virtual-agent
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
keywords: [Variables, sidebar, script, topic, Virtual Agent designer]
breadcrumb: [Creating a Virtual Agent topic, Build conversations, Virtual Agent, Conversational Interfaces]
---

# Define script variables for a topic

## Before you begin

Role required: virtual\_agent\_admin or admin

## About this task

For more information about writing scripts for Virtual Agent, see [Virtual Agent scripts](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/conversational-interfaces/virtual-agent/virtual-agent-scripts.md).

## Procedure

1. Navigate to **All** &gt; **Conversational Interfaces** &gt; **Assistant Designer**.

2. Select the **Asset library** tab.

3. On the home page, open an existing topic or create a new one.

The **Flow** tab displays the conversation flow.

4. In the sidebar, select the Variables tab, then select the **Script** plus icon \[Omitted image "icon-plus-clear.png"\] Alt text:.

5. On the form, fill in the fields.

|Field|Description|
|-----|-----------|
|Variable name|Name of the variable. The name is case-sensitive. Spaces in the name are replaced with an underscore character.|
|Default value|Default value for the variable. You can use either a static value or a script that specifies a dynamic value for this variable.|

6. Select **Save**.

**Parent Topic:**[Build conversations in the Asset library in Assistant Designer](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/conversational-interfaces/virtual-agent/conversation-designer-virtual-agent.md)