The APIMapper.mi.name is configured in PA tool. It is used to reference the M3 API Communication configurations setup in the Partner Admin to connect to the M3 API Server.
The M3 API Communication supports connection with API Socket and API Socket with SSL. The difference between the two connections is that API Socket with SSL requires a certificate and keystore password. For more details about configuration, see the Infor Enterprise Collaborator Partner Administration Tool User Guide.