Optionalchannel_Optionalcontact_The ID of the contact. Will be empty if processing_mode is DISPATCH.
Optionalconversation_The ID of the conversation the app message is part of. Will be empty if processing_mode is DISPATCH.
Optionalmessage_The ID of the app message.
OptionalmetadataMetadata specified in the message_metadata field of a Send Message request, if any.
Optionalprocessing_OptionalreasonOptionalstatusThe delivery status
See
ChannelIdentity