diff --git a/management/univention-directory-manager-modules/modules/univention/admin/uldap.py b/management/univention-directory-manager-modules/modules/univention/admin/uldap.py
index 689d756..fd0f594 100644
--- a/management/univention-directory-manager-modules/modules/univention/admin/uldap.py
+++ b/management/univention-directory-manager-modules/modules/univention/admin/uldap.py
@@ -85,7 +85,8 @@ def _err2str(err):
 	msgs = []
 	for iarg in err.args:
 		if isinstance(iarg, dict):
-			msg = ': '.join([str(m) for m in (iarg.get('desc'), iarg.get('info')) if m])
+			matched = 'matched %s' % (iarg['matched'],) if 'matched' in iarg else ''
+			msg = ': '.join([str(m) for m in (iarg.get('desc'), iarg.get('info'), matched) if m])
 		else:
 			msg = str(iarg)
 		if msg:
@@ -358,7 +359,7 @@ def search(self, filter='(objectClass=*)', base='', scope='sub', attr=[], unique
 		try:
 			return self.lo.search(filter, base, scope, attr, unique, required, timeout, sizelimit)
 		except ldap.NO_SUCH_OBJECT as msg:
-			raise univention.admin.uexceptions.noObject(_err2str(msg))
+			raise univention.admin.uexceptions.noObject(base, _err2str(msg))
 		except ldap.INAPPROPRIATE_MATCHING as msg:
 			raise univention.admin.uexceptions.insufficientInformation(_err2str(msg))
 		except (ldap.TIMEOUT, ldap.TIMELIMIT_EXCEEDED) as msg:
@@ -374,7 +375,7 @@ def searchDn(self, filter='(objectClass=*)', base='', scope='sub', unique=False,
 		try:
 			return self.lo.searchDn(filter, base, scope, unique, required, timeout, sizelimit)
 		except ldap.NO_SUCH_OBJECT as msg:
-			raise univention.admin.uexceptions.noObject(_err2str(msg))
+			raise univention.admin.uexceptions.noObject(base, _err2str(msg))
 		except ldap.INAPPROPRIATE_MATCHING as msg:
 			raise univention.admin.uexceptions.insufficientInformation(_err2str(msg))
 		except (ldap.TIMEOUT, ldap.TIMELIMIT_EXCEEDED) as msg:
@@ -407,6 +408,9 @@ def add(self, dn, al, exceptions=False):
 		except ldap.INSUFFICIENT_ACCESS as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'add dn=%s err=%s' % (dn, msg))
 			raise univention.admin.uexceptions.permissionDenied
+		except ldap.NO_SUCH_OBJECT as msg:
+			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'add dn=%s err=%s' % (dn, msg))
+			raise univention.admin.uexceptions.noObject(dn, _err2str(msg))
 		except ldap.LDAPError as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'add dn=%s err=%s' % (dn, msg))
 			raise univention.admin.uexceptions.ldapError(_err2str(msg), original_exception=msg)
@@ -424,7 +428,7 @@ def modify(self, dn, changes, exceptions=False, ignore_license=0):
 			return self.lo.modify(dn, changes)
 		except ldap.NO_SUCH_OBJECT as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'mod dn=%s err=%s' % (dn, msg))
-			raise univention.admin.uexceptions.noObject(dn)
+			raise univention.admin.uexceptions.noObject(dn, _err2str(msg))
 		except ldap.INSUFFICIENT_ACCESS as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'mod dn=%s err=%s' % (dn, msg))
 			raise univention.admin.uexceptions.permissionDenied
@@ -433,8 +437,8 @@ def modify(self, dn, changes, exceptions=False, ignore_license=0):
 			raise univention.admin.uexceptions.ldapError(_err2str(msg), original_exception=msg)
 
 	def rename(self, dn, newdn, move_childs=0, ignore_license=False):
-		if not move_childs == 0:
-			raise univention.admin.uexceptions.noObject(_("Moving children is not supported."))
+		if move_childs:
+			raise univention.admin.uexceptions.noObject(dn, _("Moving children is not supported."))
 		self._validateLicense()
 		if not self.allow_modify and not ignore_license:
 			univention.debug.debug(univention.debug.ADMIN, univention.debug.WARN, 'move dn: %s' % dn)
@@ -445,7 +449,7 @@ def rename(self, dn, newdn, move_childs=0, ignore_license=False):
 			return self.lo.rename(dn, newdn)
 		except ldap.NO_SUCH_OBJECT as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'ren dn=%s err=%s' % (dn, msg))
-			raise univention.admin.uexceptions.noObject(dn)
+			raise univention.admin.uexceptions.noObject(dn, _err2str(msg))
 		except ldap.INSUFFICIENT_ACCESS as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'ren dn=%s err=%s' % (dn, msg))
 			raise univention.admin.uexceptions.permissionDenied
@@ -465,7 +469,7 @@ def delete(self, dn, exceptions=False):
 			return self.lo.delete(dn)
 		except ldap.NO_SUCH_OBJECT as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'del dn=%s err=%s' % (dn, msg))
-			raise univention.admin.uexceptions.noObject(dn)
+			raise univention.admin.uexceptions.noObject(dn, _err2str(msg))
 		except ldap.INSUFFICIENT_ACCESS as msg:
 			univention.debug.debug(univention.debug.LDAP, univention.debug.ALL, 'del dn=%s err=%s' % (dn, msg))
 			raise univention.admin.uexceptions.permissionDenied