Index: ucs-school-import/modules/ucsschool/importer/models/import_user.py
===================================================================
--- ucs-school-import/modules/ucsschool/importer/models/import_user.py	(Revision 71928)
+++ ucs-school-import/modules/ucsschool/importer/models/import_user.py	(Arbeitskopie)
@@ -664,6 +664,8 @@
 			all_fields = dict()
 		all_fields.update(self.to_dict().copy())
 		all_fields.update(self.udm_properties)
+		if "username" not in all_fields:
+			all_fields["username"] = all_fields["name"]
 		all_fields.update(kwargs)
 
 		prop = uadmin_property("_replace")