Copy Record Button

// Server-side code
(function() {
  // Get current record
  var currentId = current.sys_id.toString();

  // Create new record
  var grNew = new GlideRecord('incident');
  grNew.initialize();

  // Fields to exclude from copy
  var excludeFields = [
    'sys_id',
    'sys_created_by',
    'sys_created_on',
    'sys_updated_by',
    'sys_updated_on',
    'number',
    'opened_at',
    'closed_at',
    'resolved_at',
    'work_start',
    'work_end'
  ];

  // Copy all fields except excluded ones
  var elements = current.getElements();
  for (var i = 0; i < elements.size(); i++) {
    var element = elements.get(i);
    var fieldName = element.getName();

    if (excludeFields.indexOf(fieldName) === -1) {
      grNew.setValue(fieldName, current.getValue(fieldName));
    }
  }

  // Modify short description to indicate copy
  var originalDesc = current.short_description.toString();
  grNew.short_description = '[COPY] ' + originalDesc;

  // Add work note to indicate source
  grNew.work_notes = 'Copied from incident ' + current.number;

  // Insert the new record
  var newId = grNew.insert();

  if (newId) {
    gs.addInfoMessage('Created copy: ' + grNew.number);

    // Redirect to the new record
    action.setRedirectURL(grNew.getLink(true));
  } else {
    gs.addErrorMessage('Failed to create copy');
  }
})();