Why do I see the journal source “Payroll Forward Accrual” on my Account Cert?

This appears for a Medical Center employee or position is funded by Academic or UPG FDM strings. The forward accruals functionality is used by the Medical Center to estimate payroll costs through the end of a financial reporting period, but while these expenses may appear as part of month-end close, they are reversed out with an accounting date of the 1st of the next fiscal period. 

If you see this on an Account Cert, you simply need to verify that the Payroll Actual Accrual journal source expenses are correct.  There is no other action on your end for the Forward Accruals.