enhancement
If the accesses are synchronized with the LDAP, new accesses and contacts may be created.
If the LDAP is misconfigured in such a way that no login can be found for the account, a warning is logged and this data record is skipped.
If the LDAP is misconfigured in such a way that no surname can be found, "null" is written to the contact and the commit fails.
Improvement
A warning is also logged and the user name is used as the surname instead.