New SuiteScript Features and Enhancements in NetSuite 2026.1

TL;DR Opening

Starting in NetSuite 2026.1, several notable enhancements were introduced to SuiteScript and integration capabilities. Key updates include the ability to execute SuiteScript 2.0 scripts as SuiteScript 2.1, support for new HTTP methods, and improved logging for custom tool scripts.

What's New in SuiteScript and Integration

New Preference for SuiteScript Execution

With the introduction of a new preference, users can now execute SuiteScript 2.0 scripts using the SuiteScript 2.1 framework. This change facilitates improved functionality and aligns older scripts with the latest standards in NetSuite.

Support for PATCH Method

The N/http and N/https modules now support the PATCH method, allowing developers to make partial updates to resources, thus enhancing the capabilities of RESTful web services within NetSuite.

Enhancements in Custom Tool Scripts

NetSuite has also introduced detailed logging capabilities for custom tool scripts. This feature allows users to monitor and troubleshoot executions effectively. Key updates include:

• Add the JSDoc tag @NScriptType CustomTool to custom tool scripts.
• Declare entry point functions for tool methods as asynchronous.
• Update SDF object names and prefixes to reflect new standards.

To view execution logs for custom tool scripts, navigate to Customization > Scripting > Script Execution Logs. Applying these updates ensures seamless monitoring of script performance.

Additional Features

• Support for GPT-OSS Model: The N/llm module now supports the GPT-OSS model, enhancing AI capabilities within the Suite. This integration opens doors for advanced language processing functionalities directly within NetSuite.
• Subscription Metrics Cohort Enhancement: An Acquisition Date field has been added to customer records, enriching the data available for analyzing subscription metrics.
• New Subtab for AI Connector Service: Integration records now include a new subtab in the execution log tailored for the AI Connector Service (MCP).
• Exception Management in Sandboxes: Exception management is now supported in sandbox accounts, giving developers better control during testing and integration phases.

Class, Department, and Location Role Restrictions

Updates to account records now allow Class, Department, and Location role restrictions to include unassigned values, granting greater flexibility in record management.

Who This Affects

• Administrators: For configuring SuiteScript settings.
• Developers: Benefiting from enhanced script capabilities and logging.
• Accountants and Finance Professionals: Utilizing new features for metrics and reporting.

Key Takeaways

• The new preference allows SuiteScript 2.0 scripts to run in the SuiteScript 2.1 environment for improved compatibility.
• Support for the PATCH method enhances API capabilities for resource updates.
• Detailed logging for custom tool scripts aids performance monitoring and troubleshooting.
• The introduction of the GPT-OSS model expands AI utilization in integrations.
• Role restrictions have been updated for improved account management flexibility.