Here we would like to draw your attention to PSA08 transaction code in SAP. As we know it is being used in the SAP CA-JVA (Joint Venture und Production Sharing Accounting in CA) component which is coming under CA module (Cross Application).PSA08 is a transaction code used for PSA Currency & Exchange Rate Types in SAP.
It comes under the package GJPSA.
Transaction PSA08 technical data table
|Purpose||PSA Currency & Exchange Rate Types|