Suitescript 1.0 Save value in multiselect field using setFieldValues

Question

I have a legacy SuiteScript 1.0 script and I want to load a customer record and check whether a specific multiselect field has any selected values. If no values are selected, I want to add a default value.

I can load the record and verify if the field contains a value. I can add value(s) to multiselect fields in the customer record but NOT for the "leadsource" field which produces the error:

"Please enter value(s) for: Leadsource". 

There seems to be something special about the "leadsource" field which requires special handling. Any ideas?

function postRESTlet(dataIn) {

  var record = nlapiLoadRecord('customer', 17417);
  var values = new Array();
  var leadsource = record.getFieldValues('leadsource');

  if(leadsource === null) {  
    values[0] = '-2';
    record.setFieldValues('leadsource', values);
  }

  nsid = nlapiSubmitRecord(record); 
  return nsid;

}

Answer 1

The value of the leadsource field is supposed to be an array of strings only in case there are multiple values. Otherwise it's just sting. So just use -2, like:

function postRESTlet(dataIn) {
  var record = nlapiLoadRecord('customer', 17417);
  var values = new Array();
  var leadsource = record.getFieldValues('leadsource');

  if(leadsource === null) {
    values = '-2';
    record.setFieldValues('leadsource', values);
  }

  nsid = nlapiSubmitRecord(record);
  return nsid;
}

This will get rid of the error

"Please enter value(s) for: Leadsource"

but you may have others, e.g.

Please enter value(s) for: Invoice Email

which is out of scope of this question