ClientExtensions

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "ClientExtensions",
  "description": "A ClientExtensions object allows a client to attach a clientID, tag and comment to Orders and Trades in their Account.  Do not set, modify, or delete this field if your account is associated with MT4.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "The Client ID of the Order/Trade"
    },
    "tag": {
      "type": "string",
      "description": "A tag associated with the Order/Trade"
    },
    "comment": {
      "type": "string",
      "description": "A comment associated with the Order/Trade"
    }
  }
}