diff --git a/src/phi/async_ldap/model.py b/src/phi/async_ldap/model.py
index 4671cea..80d9615 100644
--- a/src/phi/async_ldap/model.py
+++ b/src/phi/async_ldap/model.py
@@ -257,7 +257,7 @@ class User(Hackers):
         async with self.client.connect(is_async=True) as conn:
             res = await conn.search(self.dn, 0)
             if len(res) > 0:
-                raise PhiUserExists
+                raise PhiEntryExists(self.dn)
         _sn = sn if sn is not None else self.name
         _cn = cn if cn is not None else self.name
         self._entry = await create_new_(self, uid=self.name, mail=mail, sn=_sn, cn=_cn)
@@ -267,7 +267,7 @@ class User(Hackers):
             res = await conn.search(self.dn, 0)
         alog.debug("[%s] sync -> res: %s", self.name, res)
         if len(res) == 0:
-            raise PhiUserDoesNotExist(self.dn)
+            raise PhiEntryDoesNotExist(self.dn)
         for k, v in res[0].items():
             if not k == "dn":
                 self._entry[k] = v
@@ -280,7 +280,7 @@ class User(Hackers):
                     del self._entry[key]
                 self._entry[key] = value
             except KeyError:
-                raise PhiAttributeMissing
+                raise PhiAttributeMissing(self.dn, key)
             await self._entry.modify()
 
     async def remove(self):
@@ -289,19 +289,29 @@ class User(Hackers):
             try:
                 await self._entry.delete()
             except NoSuchObjectError:
-                raise PhiUserDoesNotExist
+                raise PhiEntryDoesNotExist(self.dn)
 
 
-class PhiUserExists(Exception):
-    pass
+class PhiEntryExists(Exception):
+    def __init__(self, dn):
+        self.dn = dn
 
 
-class PhiUserDoesNotExist(Exception):
-    pass
+class PhiEntryDoesNotExist(Exception):
+    def __init__(self, dn):
+        self.dn = dn
 
 
 class PhiAttributeMissing(Exception):
-    pass
+    def __init__(self, dn, attr):
+        self.dn = dn
+        self.attr = attr
+
+
+class PhiUnauthorized(Exception):
+    def __init__(self, user, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.user = user
 
 
 class Service(Robots):