On my Account Certification, I see amounts posted to 5004: Employee Benefits, Fringe Benefits Wages Employee (SC0086) with a Journal Source of "Allocation" and the Operational Transaction is "Employee Recognition Awards Fringe Rate Assessment . . . "

Most likely these are related to a taxable gift.  To verify, you can run the Details for Account Certification report for the impacted worktags and find transactions that originally posted to Spend Category: Employee Recognition Awards Cash & Non-Cash taxable (SC0564). These amounts are often related to gift cards that are taxable to employees and therefore, the expenses are assessed the wage fringe rate.  This does not occur until month-end close, which is why you’re seeing it now on your Account Certification.