When Collavate administrator sets a grace period, domain users will be able to keep review documents during the grace period. Grace period can be set hourly or daily.
1. Click 
2. Go to Process.
3. Activate Deadline feature.
4. Check on Allow grace period if passed deadline.
5. Set grace period.
6. Click Save Settings.
Note: If the deadline is set as a global deadline, the process will be marked as a passed deadline after the grace period.