The administrator should configure Start of Period as the accrual frequency method on the time off plan. With Start of Period processing, Workday adds the applicable accrual before subtracting time off for the processing period. This sequence ensures the accrued amount is available in the balance when the corresponding public- duty request is evaluated.
That processing order is particularly important for an Accrue-As-You-Go design. The plan is intended to generate accrual in response to the time-off requirement rather than grant workers a conventional fixed entitlement independently of their requests. Processing the accrual first enables the plan balance to fund the qualifying absence before Workday applies the time-off deduction and lower-limit rules.
Under End of Period, Workday subtracts time off before adding the current-period accrual. That order can cause the request to encounter the lower limit or produce unpaid units before the compensating accrual is applied. An accrual-level override is unnecessary when the required processing method applies to the entire plan. Custom Frequency based on hire date defines an anniversary-style recurring accrual and does not correspond to the variable timing and duration of public-duty requests. Start of Period on the plan therefore provides the correct processing sequence.
Reference: Workday Education - Absence for Administrators: Time Off Plans and Components, "Accrual Frequency Method" and "Accrue-As-You-Go"