Deleting Personnel Number in Production

Hello Experts,

I have come across an issue where some of our business users have deleted personnel numbers in Prod though PU00 after 30 days of employee being hired.

I would like to know the best practice in terms of deleting a personnel number when an employee is hired in error, Im sure it is ok to delete the employee before it can generate any transactional data( within few hours or so), but there has been argument on this that SAP has provided a standard functionality on deleting PERNR then why cant we use it.

We all know that there is a difference between standard functionality and Best Practice , but how do we come across this hurdle is my current worry.

Any live examples or exprience shared will be appriciated.

Regards,

Regi