I use OpenLDAP and would like to upgrade to 389DS

In OpenLDAP a field entryUUID exists what I use on my Apple calendar server. It has the format of the GUID XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.

In 389DS I have only found the nsUniqueID field with XXXXXXX -XXXXXXXX-XXXXXXXX-XXXXXXXX Format. If there is an attribute in 389DS for using the GUID Format?

Thank you for your help

Sincerely yours

Oliver