Optionaldelivery_Optional. The time, in seconds, after which a message without a positive delivery report will fallback to the next channel. The valid values for this field are [60 - 259200].
OptionalenabledOptional. A flag specifying whether this app has enabled fallback message delivery upon no positive delivery report. This feature is applicable only to messages which are sent to a recipient with more than one channel identity. Identities must be defined on channels which support at least the 'DELIVERED' message state. Please note that this functionality requires payment.
This object contains additional settings related to delivery report based fallback. Note that this paid functionality is available for open beta testing.