--- git/ucs/services/univention-ad-connector/conffiles/etc/univention/connector/ad/mapping	2018-09-21 14:39:12.995959275 +0200
+++ git/ucs/services/univention-ad-connector/conffiles/etc/univention/connector/ad/mapping.new	2019-03-14 11:40:58.621228313 +0100
@@ -277,6 +277,11 @@
 							ldap_attribute='displayName',
 							con_attribute='displayName',
 						),
+					'employeeNumber': univention.connector.attribute (
+							ucs_attribute='employeeNumber',
+							ldap_attribute='employeeNumber',
+							con_attribute='employeeNumber',
+						),
 			},
 
 		),