OptionalchannelOptionalcontact_The ID of the contact which is the subject of the opt-in. Will be empty if processing_mode is DISPATCH.
Optionalerror_OptionalidentityThe channel identity. For example, a phone number for SMS, WhatsApp and Viber Business.
Optionalprocessing_Optionalrequest_ID generated when making an opt-in registration request. Can be used to detect duplicates.
OptionalstatusStatus of the opt-in registration.
See
ConversationChannel