You cannot use the LDAP naming services to create automount path names that are identical, with the exception of case results in nonunique path names. The directory server does not allow creation of entries if the naming attribute is defined with case-sensitive syntax, and an entry already exists with the same name, but a different case.
For example, /home/foo and /home/Foo paths cannot coexist.
If entry attr=foo,dc=mycompany,dc=com exists, the server does not allow the creation of attr=Foo,dc=mycompany,dc=com. A corollary of this problem is when LDAP naming services are used, automount path names have to be unique, regardless of their case.