Chat
tenant = …
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Pick a thread on the left, or start a new one.
Select a thread to view messages.
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Generates a single-use link. Only the person you share it with should open it. They will join the currently-open thread as the display name you choose.
Copy this link and share it privately. It works once. Anyone with the link becomes an external participant using the display name you chose.
You'll appear in the conversation as:
…
This invitation works once. Continuing accepts it.