In a record named "Parent Record", I have a list/record field named "Child Record Reference". In the record named "Child Record", I have a list/record field named "Parent Record Ref". From the "Parent Record" record, when I try to create a new "Child Record" by using the "+" sign next to the "Child Record Reference" field, I want the "Parent Record Ref" field in the "Child Record" to be auto populated to the "Parent Record" record. How can I do this in NetSuite?

AI generated answer (using internal Slack threads):

In NetSuite, you can achieve this by using a client script. The script will be triggered when you click the "+" sign next to the "Child Record Reference" field in the "Parent Record". The script will then auto-populate the "Parent Record Ref" field in the "Child Record" with the "Parent Record" record. Here is a sample script:

javascript
/**
 * @NApiVersion 2.x
 * @NScriptType ClientScript
 */
define(['N/currentRecord'], function(currentRecord) {
    function pageInit(scriptContext) {
        var rec = scriptContext.currentRecord;
        var parentRecordId = rec.id;
        var childRecord = rec.getSublistValue({
            sublistId: 'childrecord',
            fieldId: 'parentrecordref',
            line: 0
        });
        if (!childRecord) {
            rec.setSublistValue({
                sublistId: 'childrecord',
                fieldId: 'parentrecordref',
                line: 0,
                value: parentRecordId
            });
        }
    }
    return {
        pageInit: pageInit
    };
});

This script uses the

N/currentRecord

module to get the current record (the "Parent Record"). It then gets the "Parent Record Ref" field from the "Child Record" sublist. If the field is empty, it sets the field to the ID of the "Parent Record". Please note that you need to replace 'childrecord' and 'parentrecordref' with the actual IDs of your sublist and field. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******