CustomData

This object is used to store additional metadata on users, conversations and messages.

Example

{
  country: "nl",
  itemId: "720"
}

Field	Type	Description
`[key: string]`	`string`	Any number of key/value pairs of your choosing to be stored along with the associated resource. You can use custom data for all kinds of purposes, such as customizing a user's email notification text, transmitting contextual user data, or making email login tokens. Both the key and the value must be strings; arbitrarily deeply nested JSON is not supported.