R12 Primary Ledger (INR), Secondary Ledger (USD) REVALUATION

Proposed Setup:

1)  Primary Ledger (INR)

2)  Secondary Ledger (USD)

3)  Subledgers (mainly AP) will process transactions in various currencies - though mainly INR which get posted to Primary Ledger in INR

4)  Secondary Ledger (USD) receives translated transactions at the daily rates - so accumulated USD balances are based on actual rates.  This good for P&L Accounts.  However for certain Balance Sheet accounts - especially CASH, a REVALUATION is required.

5)  Periodic REVALUATION of certain accounts in the Secondary Ledger is required for US GAAP

6)  How will the REVALUATION of the Secondary Ledger balances know the Daily Rates to compare against the period-end rate in order to calculate the REVALUATION adjustment?