The message API provides means to create/send messages to
identities. You can send a message to any
identity, e.g. a
housing company, where all
users who have access to the
housing company identity and its messages can read the message.
The message requires a
"to" identity, the
ID of the identity to which the message applies to. A message
subject and its
content should be added as well.
cc is a list of user IDs to whom the message can be CC'd to. A notification about the message will be sent to these users.