{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-pinpoint/refs/heads/main/json-schema/amazon-pinpoint-campaign-custom-message-schema.json", "title": "CampaignCustomMessage", "description": "Specifies the contents of a message that's sent through a custom channel to recipients of a campaign.", "type": "object", "properties": { "Data": { "allOf": [ { "$ref": "#/components/schemas/__string" }, { "description": "The raw, JSON-formatted string to use as the payload for the message. The maximum size is 5 KB." } ] } } }