Hi Ricardo,
Thanks for bringing this to my attention. I just updated the documentation of the component, which you can check here.
Long story short, from the standpoint of OutSystems, you just need to have the right set of configurations to have the demo running, or to use the actions exposed by the MicrosoftTeams_IS module.
You need, however, to have the Azure configured, so you can get your credentials and your user to have the necessary permissions to do the actions you will be doing (send messages, get channels, etc.).
Kind Regards,
João