I'm here to help you correct the pay period dates in QuickBooks Online (QBO).
Correcting pay period dates may differ depending on the QBO Payroll subscription you're using and the goal you're trying to achieve. If you're rectifying the employee's pay period, you can follow the steps below.
For QBOP Full Service, Core, Premium, and Elite:
Go to Workers, then select Employees.
Choose an employee's name and click the Edit (Pencil) icon beside Pay.
In the How often do you pay [employee]?, hit the Edit icon.
Enter the correct pay period ending frequency.
Check the Use this schedule for employees you add after [employee] box.
Choose an option if the schedule will be updated for all employees listed.
Hit Continue and tap Done.
For Payroll Enhanced:
Go to Settings, then select Payroll Settings.
Choose Pay Schedules.
Locate the pay period you want to modify, then click Edit.
Choose the correct date and entered all required data.