Why is my suitescript not executing?

On a sales order I want to see if the items ordered were in stock when the order is placed. I have added a checkbox to the body that is checked when the script runs, and a checkbox on the line to be checked if quantity is less than or equal to available. But it doesn’t seem to run. I have it deployed to the sales order, it is active, and released. Is there something else I am missing?

/**
* @NApiVersion 2.x
* @NScriptType UserEventScript
* @NModuleScope SameAccount
*/

define([‘N/record’], function (record) {
/**
* This function is triggered before a Sales Order record is submitted
* @param {Object} context
* @param {Record} context.newRecord – New record being submitted
* @param {Record} context.oldRecord – Old record before edit (only for edit events)
* @param {string} context.type – Trigger type
* @param {Form} context.form – Current form (only available in beforeLoad event)
*/
function beforeSubmit(context) {
try {
if (context.type === context.UserEventType.CREATE || context.type === context.UserEventType.EDIT) {
var newRecord = context.newRecord;
var scriptExecuted = newRecord.getValue({
fieldId: ‘custbodyscript_executed’
});

// Check if the script has already been executed
if (!scriptExecuted) {
var lineItemCount = newRecord.getLineCount({
sublistId: ‘item’
});

for (var i = 0; i < lineItemCount; i++) {
var quantity = newRecord.getSublistValue({
sublistId: ‘item’,
fieldId: ‘quantity’,
line: i
});

var availableQuantity = newRecord.getSublistValue({
sublistId: ‘item’,
fieldId: ‘quantityavailable’,
line: i
});

if (quantity <= availableQuantity) {
newRecord.setSublistValue({
sublistId: ‘item’,
fieldId: ‘custcol2’,
line: i,
value: true
});
}
}

// Set the custom field to indicate that the script has been executed
newRecord.setValue({
fieldId: ‘custbodyscript_executed’,
value: true
});
}
}
} catch (error) {
log.error({
title: ‘Error’,
details: error.message
});
}
}

return {
beforeSubmit: beforeSubmit
};
});