Is USER_ERROR a NetSuite bug?

Usually not. USER_ERROR means a script or workflow raised the error intentionally to enforce a rule. The message text is set by whoever wrote it, so start by reading it - it normally names the field or condition that needs fixing.

How do I find which script raised USER_ERROR?

Open Customization > Scripting > Script Execution Logs and filter by the record type, date and USER_ERROR. For a workflow, check the record System Notes and Workflow tab. That identifies the script or workflow and the rule it enforces.

Can I just disable the script to get past USER_ERROR?

Only if the rule is genuinely wrong. The error usually protects data integrity, so disabling it can let bad data through. Fix the underlying data or correct the condition instead, and test before redeploying.

USER_ERROR — what it means and how to fix it

USER_ERROR: USER_ERROR is a controlled error that a SuiteScript or workflow raises on purpose - using error.create or a workflow error action - to block an action that breaks a business rule. The message text is written by the script, so the fix is to read it and resolve the condition it is enforcing.

When you see this

Saving a transaction is blocked with a USER_ERROR message a developer wrote, such as a validation that a field must be set.
A scheduled or Map/Reduce script logs USER_ERROR and stops processing a record.
A CSV import or API call returns USER_ERROR with a custom message from a user-event script.

Causes

A SuiteScript deliberately threw the error with error.create({name:'USER_ERROR', message:...}) because a validation or business rule was not met.
A workflow ran a Return User Error action to stop a record being saved when a condition is true.
The script logic is itself wrong - it raises USER_ERROR on data that should be valid (an over-strict or buggy condition).

Fix

Read the message, find the script or workflow that raised it, and either correct the data that breaks the rule or fix the rule itself.

Read the exact message - with USER_ERROR the developer set the text, so it usually names the field or rule at fault.
Find the source: Customization > Scripting > Script Execution Logs (filter by record and date), or for a workflow the record System Notes and Workflow history.
If the data is genuinely invalid, correct it (set the required field, fix the value) and retry the action.
If the rule is wrong or too strict, edit the script or workflow condition; for your own scripts, throw USER_ERROR only on true rule violations and write a message that names the field and the fix.

Prevent it

Write USER_ERROR messages that name the field and the corrective action, so users can self-serve.
Validate in the right place - field-level where possible - so the error fires early, not on save.
Test scripts and workflows against realistic data before deploying to production.

SuiteScript version note: error.create with name USER_ERROR is the SuiteScript 2.x pattern; SuiteScript 1.0 used nlapiCreateError or throwing an error object. Workflow Return User Error actions behave the same across versions.

Frequently asked questions

Is USER_ERROR a NetSuite bug?: Usually not. USER_ERROR means a script or workflow raised the error intentionally to enforce a rule. The message text is set by whoever wrote it, so start by reading it - it normally names the field or condition that needs fixing.
How do I find which script raised USER_ERROR?: Open Customization > Scripting > Script Execution Logs and filter by the record type, date and USER_ERROR. For a workflow, check the record System Notes and Workflow tab. That identifies the script or workflow and the rule it enforces.
Can I just disable the script to get past USER_ERROR?: Only if the rule is genuinely wrong. The error usually protects data integrity, so disabling it can let bad data through. Fix the underlying data or correct the condition instead, and test before redeploying.

Last reviewed: 2026-06-27 by Wouter Nortje, CA