I have tried to find documentation on the auto complete property of the DNLookup control type, but with no success...
I am guessing that the auto complete functionality would start to search the vault for objects matching what is being typed when the "autocomplete min character input" threshold is reached. But this is not working for me... I have monitored the LDAP trace and it confirms that no query is being executed.
This is the version of the UA we are using: Identity Manager Roles Based Provisioning Module Version 4.5.0 Build Revision 42199