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When logging into an LDAP Namespace, the error AAA-SYS-0001 is received.
The error received is:
java.lang.RuntimeException: Expected a single account object.
The LDAP attribute mappings defined in Cognos Configuration, do not match what are in the LDAP Authentication source. An example of this would be using groupofuniquenames when the LDAP server uses groupofnames.
Resolving the problem
Adjust the LDAP attribute mappings object class value in Cognos Configuration. For further information about what these attribute mappings should be, please review the section entitled 'Configure an LDAP Namespace' in the Installation and Configuration Guide.