You can get a snapshot of all the actions taken on a submitted timesheet by selecting Actions > View History.
The following are the events that are captured in the View History window:
Submission – User submitted the timesheet for approval
Approval – Approved by the final approver
Rejection - Rejected by final approver (or rejected by the Organization Time Admin – we’ll show a note indicating if it’s the org time admin)
PM Approval – Approved by a project manager
PM Rejection – Rejected by a project manager
Notes that are entered along with Submit, Approval, and Rejection actions will appear in timesheet history window, in addition to Timesheet and Entry notes.
Below is an example Timesheet History window: