Tasks is the list of work to do, in progress, or done. Use it when a job needs a status, an owner, or a due date, not just a chat thread.

Open a task to see the conversation and activity attached to it.
Information
Open Tasks from the app rail.
Create
New task needs a title. Add a description, due date, and owner when you have them.
Move it
Status moves as the work moves. Comments stay on the task, so the thread does not get lost in Chat history.
Group if needed
Projects group many tasks. If you only have one job, a task is enough.