Hello, This stumped me too with the changes. You actually have to select an employee, go into edit details and then change or add a new pay schedule. Your pay schedule is what controls the dates
Set up, assign, and update a pay schedule
Go to Payroll, then Employees. Select your employee.
From Employment details, select Start or Edit.
From the Pay schedule ▼ dropdown, select the pay schedule for the employee moving forward.
Or, to create a new pay schedule, select + Add pay schedule. Fill out the appropriate fields. Then select Save. When you're done, select Save.
