Closed periods and task groups are final in the platform and cannot be reopened. Instead, if further work or corrections are needed, you can add a correction task, issue a remark, or create a new task group to address the additional activities.
For cases, only users with the Owner, Admin, or Manager role can reopen a closed case to return it to an active state; however, this does not apply to closed periods or task groups. This approach ensures the integrity of completed work while allowing follow-up via separate tasks or cases.