anchor.diff:    "acknowledged" : true
   }
   ----
  -// NOTCONSOLE+// NOTCONSOLE
  
positive.code: --------------------------------------------------
  PUT _data_frame/transforms/ecommerce_transform
  {
    "source": "kibana_sample_data_ecommerce",
    "dest": "kibana_sample_data_ecommerce_transform",
    "pivot": {
      "group_by": {
        "customer_id": {
  
negative.code: 
  ==== Request Body
  
  `source`:: (object) The source configuration, consisting of `index` and optionally
  a `query`.
  
  `dest`:: (object) The destination configuration, consisting of `index`.
  
  `pivot`:: Defines the pivot function `group by` fields and the aggregation to
  reduce the data.
  