Clarity does not allow a Milestone to be Open for Time Entry ("Error: A Milestone Task cannot be Open for Time Entry.") and Clarity assigns a 0 day duration to Milestones that cannot be changed (the value becomes read-only).
However, if these are created or edited from Microsoft Project, it is possible to have a Milestone with a duration different than 0 and/or Open for Time Entry (and these cannot be reversed from Clarity).
Steps to Reproduce:
Observations:
When using Clarity<->MSP:
Expected Results: Milestone has 0d duration and it is not Open for Time Entry. There is no way to change these values from Clarity UI. Duration can be changed from MSP, but for adjusting Open for Time Entry flag in MSP, it is necessary to create a new MSP Field Mapping to close the task for Time Entry.
Actual Results: Milestone has 1d duration and it is Open for Time Entry.
Release : 16.1.2
DE70674
This issue has been fixed in Clarity 16.2.0.