Approving a timesheet records that somebody reviewed the hours. It is a review state, not a payroll run — and it can be undone by anyone with the access, so it is not the last word either.

Timesheets opens on Pending and Approved, each carrying its own count, with the pay period set along the top. Opening a shift breaks it into the days that were actually worked: start, end, break and hours, one row per day. You approve days, not shifts — tick the ones you have checked, or the header to take them all.

The thing worth slowing down for is the confirmation. It does not ask "approve this shift?" — it asks whether you meant to approve that many total hours. That number is the sum of what you ticked, and it is the last place a wrong day is catchable before it moves across.

Sort out missing or disputed attendance before approving. Never substitute the planned duration for the worked total — the point of the review is that the two can differ.

Step 1
Open Timesheets
Timesheets in the side menu. Check the pay period along the top before reading anything — the counts on Pending and Approved are for the period on screen.
Step 2
Open a shift
A shift expands into the days worked: start, end, break and hours, one row per day.
Step 3
Select the days you have checked
Tick individual days, or the header to take all of them. Approving is per day, so a shift with one bad day does not have to wait for the whole shift to be sorted out.
Step 4
Read the running total
The bar shows how many days you have taken and what they add up to. Check it against what you expect before going further.
Step 5
Approve the selection
Approve Selected acts on the ticked days only.
Step 6
Read the confirmation, not past it
It asks about the total hours, not the shift. If that figure is not what you expect, a day you did not mean to include is in the selection — this is where to catch it.
Step 7
Check it landed
Approved days move to the Approved tab. The counts on both tabs change to match.
Step 8
When the hours are wrong
Approving and unapproving are not the only two moves, and reaching for unapprove on a day you have not approved yet is the wrong one.

There is no reject. A day you disagree with is corrected, not bounced. Put the shift into override and its start, end and rate become editable — and a day can be split into segments, which is what you need when somebody worked two separate stretches and the app recorded one. An override can be cleared afterwards, which puts the recorded times back, so it is not a one-way door.

So the order is: correct first, then approve. Approving a day and unapproving it to fix it leaves two entries in the history where one would have done, and the unapprove reason has to justify something that need not have happened.
Step 9
Undoing an approval
Unapprove brings days back so they can be edited and re-approved. It requires a written reason — the field is mandatory — and the reason is kept. Use it rather than editing around an approval you no longer stand behind.
Step 10
What approval does not mean
It does not pay anyone and it does not lock the record permanently. It records that the hours were reviewed, by you, on the days you ticked. Days you left unticked stay pending and will not be noticed by anything downstream — approving "the shift" is not a thing that happens here.