In Clarity it is not possible to adjust a APPROVED timesheet, however the 12.1 Help menu incorrectly state that it is:
Common Features and Personal Options -> Timesheets -> How to Enter Time -> Submit, Approve, and Adjust Timesheets -> Adjust Approved or Posted Timesheets
Adjust Approved or Posted Timesheets
You can adjust your approved or posted timesheets. When you adjust your timesheet, a copy of the posted timesheet is created so that you can edit and resubmit it. The original is recorded in the application.
When you submit your adjusted timesheet, a check mark displays in the Adjustment column on the Timesheets page for that timesheet until your manager approves it. Once your manager approves and posts the adjusted timesheet, a check mark in the Adjusted column is displayed.
To adjust and resubmit your approved or posted timesheet
This is currently under review by CA as documentation defect CLRT-62624 to be corrected in future publications.
Keywords: CLARITYKB, clarity12open, clarity1210open.