Sometimes Approving Driver Payables will Lock when when more than one user tries to approve at the same time.
Likely because it has been invoiced.
GL could be locked (GL locks once a month on the 4th) and will not allow for Driver pay to be altered. Users can edit prior to the 4th and after the 4th each month. (or use memo charges to allow for corrections)
To Fix
Navigate to the company, then the office.
Click Accounting
Click Approve Driver Payables
Click the Unlock button (for locked payables)
Check GL eff. date and see if conflicting with cut-off date
