Access Manager 7.1 legacy mode has the following incompatibilities in the core authentication module from Access Manager 6 2005Q1:
Organization Authentication Modules are removed in legacy mode.
The presentation of the “Administrator Authentication Configuration” and “Organization Authentication Configuration” has changed. In the Access Manager 7.1 Console, the drop-down list has ldapService selected by default. In the Access Manager 6 2005Q1 Console, the Edit button was provided, and the LDAP module was not selected by default.