JourneyCustomMessage

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-pinpoint/refs/heads/main/json-schema/amazon-pinpoint-journey-custom-message-schema.json",
  "title": "JourneyCustomMessage",
  "description": "Specifies the message content for a custom channel message that's sent to participants in a journey.",
  "type": "object",
  "properties": {
    "Data": {
      "allOf": [
        {
          "$ref": "#/components/schemas/__string"
        },
        {
          "description": "The message content that's passed to an AWS Lambda function or to a web hook."
        }
      ]
    }
  }
}