Growth plan and above. Off by default — enable under Settings → Modules.
Using them
Create a milestone on a project, give it a due date, then link tasks. Progress
rolls up from those tasks, so the milestone reflects real completion rather
than a manually-updated percentage.
Why they matter beyond planning
Because a milestone is dated and has genuine completion underneath it, it feeds
delivery-confidence scoring — a milestone with most of its work still open and
a date approaching is exactly the signal that surfaces as risk in
Reports and in your daily digest.
Milestones or sprints?
Milestones are client-facing checkpoints. Sprints are internal
cadence. Use whichever your conversations are actually about — or both.