When a discussion thread is closed, it becomes an immutable artifact, but remains accessible and downloadable as PDF.
This is the team box. Closed discussion threads can be recognized by the hook on the right side of the excerpt.
If you click on it, you see the mention Collaboration was closed.
You can also find closed discussion threads by opening a patient file.
Here, I still have access to closed threads outside the channel.
Always in the patient file, I can select View details in a care channel to find its closed discussion threads.
There is a closed thread in this care channel.
Finally, under Network tab, select one of your contacts to see active or closed discussions with them.
They are accessible here!