How to delete payroll result of last month for all employees

Hi,

Imagine I have 1000 employees and the payroll has run for last month, for example month 5th. I would to delete the payroll result just for last month(5th) for whole employees. Is there ant report / transaction for this issue?

I know report RPUDEL20 which I can select whole employees but there is possibility just to tick last month result one by one for all employees or just delete whole payroll results for them by pressing F6. This couldn't solve my issue.

Thanks,

Omid