OptionalclientThe client from which the user authored the message or activity, if applicable. This field is not applicable in API responses, it is used only in webhook payloads if the includeFullSource option is enabled.
OptionaldeviceThe device from which the user authored the message or activity, if applicable. This field is not applicable in API responses, it is used only in webhook payloads if the includeFullSource option is enabled.
OptionalintegrationIdentifier indicating which integration the message was sent from. For user messages only.
OptionaloriginalMessage identifier assigned by the originating channel.
OptionaloriginalA datetime string with the format YYYY-MM-DDThh:mm:ss.SSSZ representing when the third party channel received the message.
An identifier for the channel from which a message originated. May include one of api, sdk, messenger, or any number of other channels.
The source of the message.