Constant currency business rule

Summary: Need help with constant currency business rule

Content (required):I am new to fccs and have business requirement of constant currency. I have tried translation override and Business rule, both are not working for me. Translation override still showing result using current period rates and business rule give error cannot use restricted member "USD_reporting".

Version (include the version you are using, if applicable): FCCS

Code Snippet (add any code snippets that support your topic, if applicable):