Recognizing the outbound message identifier
Adding the new model OutboundMessageIdentifier to create an answer to the outboundMessage only knowing the key of that outbound message
Every outboundmessage has at least one identifier
Creating an identifier for outbound message automatically
Adding some validations for the outbound message identifier
Creating an answer from an outbound message identifier
Now creating answers using the API
Adding Authorization
Only the owner can post answers to an instance