Optionalcallback_Optionaldelivery_Request delivery report callback. Note that delivery reports can be fetched from the API regardless of this setting.
Optionalexpire_If set, the system will stop trying to deliver the message at this point. Constraints: Must be after send_at Default: 3 days after send_at
OptionalfromSender number. Must be valid phone number, short code or alphanumeric.
Optionalsend_If set, in the future the message will be delayed until send_at occurs. Formatted as <a href="https://en.wikipedia.org/wiki/ISO_8601\" target="_blank">ISO-8601: YYYY-MM-DDThh:mm:ss.SSSZ. Constraints: Must be before expire_at. If set in the past, messages will be sent immediately.
Optionalto_List of phone numbers and group IDs to add to the batch.
Optionalto_List of phone numbers and group IDs to remove from the batch.
Optionaltype
Override the default callback URL for this batch. Constraints: Must be valid URL.