Sage 200 UKI

I am trying to query "Nominal_code_financial_year" from the Sage API but get the below error; DataSource.Error: Web.Contents failed to get contents from ' api.columbus.sage.com/.../Nominal_code_financial_year (404): Not Found Details: DataSourceKind…

Is it possible to create quotation on Sage 200 Extra API (via Postman)? I have no exposure/experience on Sage 200 so I'm relying on Sage docs which unfortunately not the best out there. I can get quotes according to https://developer.columbus.sage.com…