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Slack Help: Use threads to organize discussions

Documents threads as organized discussions around specific messages, replying in a thread, optionally sending a reply back to the main channel or DM, opening threads in a separate window, per-thread notifications, all-thread views, unread thread ordering, and thread actions such as reactions, open in channel, save, and notification controls.

Read with a purpose

What this source can teach

Use this source to inspect a concrete implementation and the decisions visible in its context.

  1. Start with the original. Open the source and find the guidance or example relevant to your task.
  2. Trace the connection. Use the claim notes below to see how this site applies the source to specific patterns.
  3. Check the setting. Compare the source's platform, people, and constraints with your own decision.

Pattern Decisions This Source Supports

Pattern Supported decision Required contract Claim note
Threaded discussion Choose threaded discussion when the core unit is a topic or parent message with replies that need branch context and participation state. Starting a reply records the exact parent topic or parent reply being answered and shows that target while composing. Slack supports organized discussions around specific messages, thread replies, optional broadcast back to channel or DM, thread windows, notification controls, all-thread views, unread ordering, reactions, save, and open-in-channel behavior.

Evidence Role

This source is treated as product-example evidence. Its value comes from the specific claims and setting described above.

Publisher: Slack Help. Last checked: .

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