3825353 - Why does Concur provide less Economy class results when we do a search by Highest allowed?

When Class-Economy is used for the same search, 61 flight options are returned for the outbound. But when we do a search by Class: Highest allowed or Mixed Class, then SAP Concur provide 23 results. Expect to see same Economy options when using Mixed class.

Not all Economy options are returned when using Highest allowed or Mixed class vs Economy drop down. , KBA , CON-CA , Cross Applications , CON-CA-ADM , Administration , Problem