{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/MessageReference",
  "title": "MessageReference",
  "type": "object",
  "description": "To abort a transaction in progress or to request the status of a transaction from which no response has been received.  It identifies the message header of the message request to abort or request the status. Identification of a previous POI transaction.",
  "properties": {
    "MessageCategory": {
      "$ref": "#/components/schemas/MessageCategory"
    },
    "ServiceID": {
      "type": "string",
      "pattern": "^.{1,10}$",
      "description": "Identification of a message pair, which processes a transaction."
    },
    "DeviceID": {
      "type": "string",
      "pattern": "^.{1,10}$",
      "description": "Identification of a device message pair."
    },
    "SaleID": {
      "type": "string",
      "pattern": "^.+$",
      "description": "default MessageHeader.SaleID."
    },
    "POIID": {
      "type": "string",
      "pattern": "^.+$",
      "description": "default MessageHeader.POIID."
    }
  }
}