The following JSON payload is sent to the webhook URL when there is an error in the command file.

{
  "errors": [
    {
      "message": "Contact file missing uploads/maropost/data/third.csv",
      "code": 404
    },
    {
      "message": "Contact file /ProductionList_0.txt is missing email 
       header",
      "code": 400
    }
  ]
}