Revaluation for previous periods under the Revalue Open Currency Balances failed with Error = Missing next accounting period

1. Go to Setup > Accounting > Manage Accounting Periods
2. Click on the Period to which you will be posting the Revaluation.
3. Check the Date Range of the Period
4. Make sure that the whole month is included (i.e. March should be from March 1-March31).
5. Hit Save.

NOTE: Currency Revaluation for Previous Periods will be dated as of the Last Day of the month. If the Last Day is not included in the Period then the saving of the transaction will fail with the corresponding error.