What action occurs during the "Before user submit" trigger?

During the "Before user submit" trigger, client-side validation of fields takes place prior to the record being submitted. This is a critical step in ensuring data integrity and preventing the submission of incomplete or incorrect information to the database. In this phase, any rules or validations that have been set up in the NetSuite environment are enforced, allowing developers to check for specific conditions or constraints on the data inputted by the user.

For instance, if a required field is left blank or a value does not meet a specified criterion, the form can halt the submission process and display error messages prompting the user to rectify the issue. This validation occurs after the user has interacted with a field but before the entire record is submitted to ensure that all necessary conditions are met for the data being entered.

By focusing on this validation, it helps maintain data accuracy and consistency within the system, reinforcing why this trigger is a pivotal part of the data entry process in NetSuite.