The Period has not ended Alert (Modal) is displayed once Create Superannuation File is selected if the Period End Date the file is being created for is in the future. This alert is to warn you that if you continue, any pay run processed after this date will need to be submitted in a separate superannuation file.

To resolve this Alert, select Yes to continue creating the Superannuation File or select No and wait until the period end date is in the past.