https://userapps.support.sap.com/sap/support/knowledge/en/3745699
3745699 - Exchange Rate Replication Error : "Query result not unique; BO CER_EXCHANGE_RATE, Node...
Exchange rate replication from S/4 to sales cloud fails for specific currency pairs. Error message: "Query result not unique; BO CER_EXCHANGE_RATE, Node ROOT,...
exchange rate