---
sourceDocument: Yokohama Build or modify applications
sourceDocumentLink: https://www.servicenow.com/docs/r/yokohama/application-development

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Build or modify applications

ft:clusterId :

    - cadev

bundleId :

    - cadev

workflow :

    - Development, Data, and Analytics


---

# Debug a script in ServiceNow Studio

# Debug a script in ServiceNow Studio {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

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

## Before you begin

Role required: admin or delegated developer

## Procedure

1. Navigate to AllApp EngineServiceNow Studio.
2. On the home page, scroll down to the bottom of the screen, and select Script Debugger from the Resources section.
3. Use the Script Debugger features you use in the normal course of your app development work.  
   The Script Debugger opens in a new tab outside of ServiceNow Studio. Some tabs and features are role-dependent. For more information about using Script Debugger, see [Script Debugger and Session Log](https://www.servicenow.com/docs/access?context=script-debugger&version=yokohama&pubname=yokohama-api-reference&ft:locale=en-US).

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