Creation a custom module record when an invoice is created

Hi,

I am trying to figure out the custom function for the automation rule trigged when an invoice is created.

The custom function should create a record (Operation) in the custom module Operations with the Operation Name = Subject (from the Invoices module) and Quantity for this Op = Quantity for the main product/the first in the list (from the Invoices module).

I wrote something like this, but it doesn't work:

void CreateOperationForOrder ( string invoiceID ) Edit Arguments

invoiceDetails = zoho. crm.getrecordbyid( "Invoices" , invoiceID.toString());

// //

operationName = invoiceDetails.get("Subject") ;

quantityForThisOp = invoiceDetails.get("Quantity") ;

temp = Map() ;

temp.put( "Quantity for this Op", quantityForThisOp);

temp.put( "Custom Module1 name", operationName);

operationCreate = zoho. crm.create( custommodule1 , temp , 1);

Also, whether the rule executed on create Invoice with criteria: Subject is ${SalesOrders.Subject} OK?

Subject

${SalesOrders.Subject}

Please help,

Thank you