Hi,
If payment has not made to employee's account then you can reverse the posting document. After that run the payroll once again if you have done the changes. Due this payroll run, system will update the cost center at cluster table level. After this run the payroll posting which will take the new updated cost center for posting.
If you have changed it from last payroll period then it will be posted as a adjusted for the last payroll period from previous cost center to current new cost center and you need to do the forced posting from previous payroll period.
Regards, Sankarsan