---
title: Debug a script in ServiceNow Studio
description: Use the Script Debugger in ServiceNow Studio to debug business rules and other synchronous server-side scripts during app development.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/application-development/servicenow-studio-classic/debug-script-servicenow-studio.html
release: australia
product: ServiceNow Studio Classic
classification: servicenow-studio-classic
topic_type: task
last_updated: "2026-05-28"
reading_time_minutes: 1
breadcrumb: [Use, ServiceNow Studio, Developing your application, Building applications]
---

# Debug a script in ServiceNow Studio

Use the Script Debugger in ServiceNow Studio to debug business rules and other synchronous server-side scripts during app development.

## Before you begin

Role required: admin or delegated\_developer

## Procedure

1.  Navigate to **All** > **App Engine** > **ServiceNow Studio**.

2.  On the home page, scroll to the bottom and select **Script Debugger** from the **Resources** section.

    The Script Debugger opens in a new tab outside of ServiceNow Studio.

3.  Use the Script Debugger to debug scripts.

    Some tabs and features are role-dependent. For more information, see [Script Debugger and Session Log](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/api-reference/scripts/script-debugger.md).


**Parent Topic:**[Using ServiceNow Studio](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/application-development/servicenow-studio-classic/using-servicenow-studio.md)