Run Server SuiteScript and Trigger Workflows
Enable this option to run any server-side SuiteScript during the CSV import process. Note that running server SuiteScript will slow the save process.

This option must be enabled for a CSV import to trigger a workflow that is based on record creation or update. If this option is not enabled, workflows do not run when a CSV import creates or updates records.

You typically should enable this option when you are synching “live” data or running a partner application (for example, Outlook synchronization).

NetSuite recommends that you disable this option when you are doing a historical import.

Note To enable or disable this option, you must be logged in to NetSuite with a Role that has full permission to:
Import CSV File.

Control SuiteScript and Workflow Trigger per CSV Import.

For more information on how to set up permissions for a role, see Setting Permissions under the Customizing or Creating NetSuite Roles topic, or look for the Answer Id 63674 in SuiteAnswers.