SAP Message 6E020 - Order was not converted due to error during rate calculation

Diagnosis
INCLUDE TRLO_EMU_ORDER_KEY OBJECT DOKU ID TX
The order cannot be converted, since an error has occurred whilecalculating or determining the exchange rate.

System Response
Processing is terminated.

Procedure
Check the Customizing settings for currency translation. The systemcannot determine the exchange rate between the original currency of theloan and the euro.
Translation ratios
Exchange rates