How can I make a dependent field on a Suitelet form? I need to source an email address when a customer is selected from a list

AI generated answer (using internal Slack threads):

To create a dependent field on a Suitelet form, you can use SuiteScript to add a client script with a

fieldChanged

entry point. When the first select field changes, you can get the selected option, then perform a search or query to get the related data (in your case, the email address related to the selected customer). Here's a simplified example of how you can do this:

javascript
/**
 * @NApiVersion 2.x
 * @NScriptType ClientScript
 */
define(['N/currentRecord'], function(currentRecord) {
    function fieldChanged(context) {
        var record = context.currentRecord;
        var fieldId = context.fieldId;

        if (fieldId === 'custpage_customer') {
            var customerId = record.getValue({
                fieldId: 'custpage_customer'
            });

            // Perform a search or query to get the email address related to the selected customer
            var customerEmail = getCustomerEmail(customerId);

            // Remove all options from the email field
            var emailField = record.getField({
                fieldId: 'custpage_email'
            });
            emailField.removeSelectOption({
                value: null
            });

            // Add the new email address to the email field
            emailField.insertSelectOption({
                value: customerEmail,
                text: customerEmail
            });
        }
    }

    return {
        fieldChanged: fieldChanged
    };
});

In this example,

custpage_customer

is the ID of the customer select field and

custpage_email

is the ID of the email field. The

getCustomerEmail

function is a placeholder for your function to get the email address of a customer. Please note that you need to create the fields on your Suitelet form using the

form.addField

method before you can use them in your client script. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******