Someone asks “which task do you mean?” in a meeting, a message or a customer call. Every task has a number, such as #1482, so you can point at it exactly and find it again by typing it.

The number is the same wherever the task appears: on its card, in its window, in the tables and in search. It never changes, whichever board the task moves to.

The full chapter, with every step and setting, is in the app: open your account menu and select User manual.