QuickBooks’ payroll services allows you to run payrolls and e-file federals etc and this is considered one of the most effective ways to pay employees used by businesses. But while updating these payroll services you might encounter several errors. QuickBooks Payroll Update Error 15243 is one of them. QuickBooks Error 15243 arrives when QuickBooks file copy services stop working due to some reasons. This error flashes on the screen with a message – “Error 15243-The update of payroll is not able to complete successfully. The QuickBooks FCS service is damaged”.