Currency Thresholds
The Currency for Payments option in Ledger Setup (LES) determines whether payments can be made in the transaction currency or fourth currency values.
If you have chosen to select payments using one of these transaction currency values, you can include, or exclude, selected currencies from a Payment Run or Payment Collection Run. Similarly, if you have chosen to produce payments only in base currency, you can include or exclude transactions that reference a transaction currency from a payment run or payment collection run.
See Selecting Transactions by Currency.