mime_typefield should be provided for all values; when provided, this must be an IANA media type (RFC 6838).
variant>, where the variant is not null.
iso_639_3>, when the variant is null.
TEXT: general text-based interactions. This includes SMS and USSD channels, which may have distinct behaviour while sharing the same content.
SMS: content specific for SMS
USSD: content specific for USSD
IVR: content specific for interactive voice response
RICH_MESSAGING: content used for data channels that support multimedia including text, audio, images, and video, such as social network chatbots (Facebook Messenger, WhatsApp, Twitter, Telegram, etc.)
OFFLINE: content used for mobile apps designed to run offline without a data connection.
default. Each block must have exactly one
defaultexit is listed last in the list.
set_contact_propertyobject within the Block
property_keyis a string attribute within the context of the Contact, and is not further restricted by this specification. For complete block interoperability across vendors, vendors would need to agree on the format and identity of
property_keycould be "gender" , or it could be a UUID referenced to an external taxonomy service.)