Custom Tool Script for Adding Numbers and Reversing Strings in

Starting in NetSuite 2026.1, a custom tool script has been introduced that allows developers to implement two useful functionalities: adding two numbers and reversing a given string. This enhancement makes it easier for developers to create customized tools directly within the NetSuite environment, improving user workflows and providing additional support for various scripting needs.

Overview of the Custom Tool Script

The provided sample script is written in SuiteScript 2.1, a modern version of NetSuite's JavaScript API. This custom tool script consists of two main functions:

• Add: Takes two numeric inputs and returns their sum.
• ReverseText: Accepts a string and returns the string with its characters reversed.

Sample Code Explanation

Here is a detailed view of the code for the custom tool script:

1/**
2 * exampletools.js
3 * @NApiVersion 2.1
4 * @NModuleScope Public
5 * @NScriptType CustomTool
6 */
7 
8"text-purple-400">define([], "text-purple-400">function() {
9 
10"text-purple-400">return {
11 
12add: "text-purple-400">async "text-purple-400">function (args) {
13    "text-purple-400">try {
14        "text-purple-400">const a = args["a"];
15        "text-purple-400">const b = args["b"];
16        "text-purple-400">return { result: a + b };
17    } "text-purple-400">catch(e) {
18        "text-purple-400">return { result: "", error: "There was an error executing the tool: " + e };
19    }
20},
21 
22reverseText: "text-purple-400">async "text-purple-400">function (args) {
23    "text-purple-400">try {
24        "text-purple-400">const text = args["text"];
25        "text-purple-400">return { result: text.split('').reverse().join('') };
26    } "text-purple-400">catch(e) {
27        "text-purple-400">return { result: "", error: "There was an error executing the tool: " + e };
28    }
29}
30 
31}
32});

Important Notes

• The script utilizes the define() function for module loading, which is essential for entry point scripts linked to script records.
• To test this script in the SuiteScript Debugger, use the require() function instead.
• SuiteScript 2.1 supports multiple modern JavaScript features, which enhance script performance and capabilities.

Who This Affects

This new functionality impacts:

• Developers: Who can enhance their applications with additional custom logic directly through tools.
• Administrators: In managing and deploying these scripts within the NetSuite environment.

Key Takeaways

• NetSuite 2026.1 introduces a Custom Tool Script that helps add numbers and reverse strings.
• The script is built using SuiteScript 2.1, leveraging modern JavaScript features for better functionality.
• It simplifies the creation of customized scripts tailored to meet specific business needs.
• Developers can directly implement and deploy these tools in their workflows, enhancing operational efficiency.