Transfer a date field value

Hello,

I would like to transfer from CRM order to a customer module a date field “Event Due Date” value.

I proceeded as following:

void OperationForOrder ( int orderId ) Edit Arguments

orderDetails = zoho.crm.getRecordById( "Salesorders" ,input.orderId ) ;

orderSubject = orderDetails.get("Subject") ;

orderEventDueDate = (orderDetails.get("Event Due Date")).toDate() ;

newOperation.put("Order number",orderSubject);

newOperation.put("Order number",orderEventDueDate);

createOperation = zoho.crm.create( "custommodule1" ,newOperation ) ;

Why it doesn’t work? What should I add?

Thank you