Unable to Updated Record via Scheduled Script, nlapiSubmitRecord

Have tested this script a few times with both "customer" and "lead" for the record type on nlapiLoadRecord. I can see the record ID and the value in the execution log, but nothing shows on the Customer/Lead record. I've tried setting the custom field as both decimal and free-form text, but still can't get any results. Is there something I am missing?

function updatePSF() {
	var SFA_PSF_2021_results = nlapiSearchRecord("customrecordsfa_yearly_sales_forecast",null,
	[
	   ["custrecord337","greaterthan","0.00"]
	],
	[
	   new nlobjSearchColumn("internalid","CUSTRECORD_SFA_Y_RECORD_KEY","GROUP"), 
	   new nlobjSearchColumn("custrecord337",null,"SUM")
	]
	);
	
    if (SFA_PSF_2021_results) { // validate if the saved search has returned some results


        for (var z = 0; z < SFA_PSF_2021_results.length; z++) { // loop to go through all the results of the saved search|
			nlapiLogExecution('DEBUG', 'Interation', z + ' of ' + SFA_PSF_2021_results.length);
			
            var result1 = SFA_PSF_2021_results[z];
			
            var column1 = result1.getAllColumns(); // retrieve all the defined columns within the saved search (amount, credit and debit)
			
            var custID = result1.getValue(column1[0]); //