Workday evaluates the pay period end date on a payroll result to determine the fringe rate to apply as part of a fringe benefit journal.
Example – 05/25/2023 - 06/24/2023 Academic Monthly
Fiscal Period Posting = Jul - FY2023-2024
Fringe Rate Applied = FY2022-2023 (because the pay period end date is 6/24/2023, which is in FY2022-2023)
This behavior is similar to Oracle where the expenditure item date (which was typically the pay period end date) was used to determine the fringe rate to apply during the burdening process.