Yes, you can add comments to the time details and then approve or reject them.
- Go to the Time Review tab, and go to the Approvals screen, you see the timesheets pending for approvals in the Pending tab.
- There is an Eye icon at the end of each time entry, click it
- You see a small window that shows the Details of the time entry and Discuss button,
- Click the discuss button and add your comments and post button,
- Now the comments that you added are visible to the user that created the time entry,
- Even the user can comment and respond to you on the Discuss tab and respond to your query
- You can approve or reject the time details after you see the user comments.