Cash Management Reconciliation

Dear All,

We implemented Cash Management and using since 18 months. We have 5 different bank accounts. But due to some internal issues we did not use Cash Management module for one of the bank account. But we keep uploading bank statement file and also there are eligible book transactions not reconciled since 18 months. We are maintaining manual reconciliation for that one bank account.

But for Auditors we are submitting manual reconciliation sheets since 18 months. Now we want to purge all bank statement lines and book transactions for that one bank account except few un reconciled items in manual sheet.

Can you please provide if any solution or work around available for current scenario?