How can I make a SELECT field in a Sublist mandatory?

AI generated answer (using internal Slack threads):

To make a SELECT field in a Sublist mandatory, you can use a beforeLoad script in SuiteScript. You can use the form from the scriptContext to get the sublist and from there the field you wish to modify. The field has a

isMandatory

setter that you can use to enforce mandatoriness. Here is a sample code snippet:

javascript
function beforeLoad(scriptContext) {
    if (scriptContext.type !== scriptContext.UserEventType.CREATE)
        return;

    var form = scriptContext.form;
    var sublist = form.getSublist({ id : 'sublist_id' });
    var field = sublist.getField({ id : 'field_id' });
    field.isMandatory = true;
}

In this code, replace

'sublist_id'

and

'field_id'

with the actual ID of your sublist and field. This will make the field mandatory only when creating a new record. Please note that this will make the whole column mandatory. There is no way in NetSuite to set columns mandatory by line. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******

Wow, I learned a new word today, mandatoriness, thank you Stanley!