N/record Module
Sublist.isChanged
Property Description: Indicates whether the sublist has changed on the record form.
Type: boolean (read-only)
Supported Script Types: Client and server-side scripts For more information, see SuiteScript 2.0 Script Types.
Module: N/record Module
Sibling Object Members: Sublist Object Members
Since: 2015.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=Sublist.isChanged

// Code Example 1

// Add additional code.

//...

var objRecord = record.load({

   type: record.Type.SALES_ORDER,

   id: 275

});



var objSublist = objRecord.getSublist({

   sublistId: 'item'

});



if(objSublist.isChanged){

   //Perform an action when objSublist.isChanged is true

}

//...

// Add additional code.



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_4600574626.html