On Mobile:
In Overview > Tap on Jobs
Tap on > List
Tap on > The job that contains the job shift you want to edit
Tap on > Job Shifts
Tap on > The shift you want to edit
Tap on > Edit
Go through the edit shift wizard
Tap on > Submit Edit
To edit the cost code of an existing Job Shift:
Tap on > Edit next to the current cost code
Select the desired cost code
On Web:
Click on > Home > Job Hours
Click on > Jobs List
Click on > The job containing the job shift you want to edit
Click on > Job Shifts
Click on > The job shift you want to edit
Click on > Edit
Click on > Submit Edit
To edit the cost code of an existing job shift:
Click on > Edit
Select the new cost code