Map milestones and work across time so dependencies, overlaps, and schedule risk are obvious before a deadline slips. The screen connects Timeline and Milestones so product teams can find the “Add milestone” action while checking milestones and on track.
Use this reference when you need to design this workflow inside an existing product. The example includes practical records such as Billing migration and Mobile onboarding, rather than an empty visual shell.

Calendar
Add milestone
Calendar
Default, loading, empty, error, permission, success
Adaptable product UI theme
Product teams need a clear “Add milestone” action without losing sight of milestones, on track and the affected records. Keep the decision and its outcome clear before moving to the next task.
Timeline → Milestones → Add milestone → Review outcome
Calendar, Timeline, Milestones, Dependencies, accessible states, contextual actions
Show timezone, time range and conflicts before a user commits. Offer a clear path back to available slots.
In this design, people should be able to compare Billing migration with Mobile onboarding. Make milestones clear, then use on track to explain whether the next step needs attention.
Before handing this to a designer or engineer, check keyboard focus, error copy, permissions and what happens after they choose the “Add milestone” action. The happy path alone is not enough.
Related UI examples: Task Board, Sprint Planning, Product Roadmap.
Design a project timeline screen for our existing software product. Use our real design-system tokens, components and product language. Show Timeline and Milestones, include believable records such as Billing migration, and make add milestone easy to find. Map loading, empty, failure, permission and success states before you create editable high-fidelity screens.