diff --git a/src/Handler/Users.hs b/src/Handler/Users.hs
index 3f3f6660d..890f6fce7 100644
--- a/src/Handler/Users.hs
+++ b/src/Handler/Users.hs
@@ -44,7 +44,7 @@ import Data.Aeson hiding (Result(..))
 
 -- import Handler.Users.Add as Handler.Users
 
-import qualified Data.Conduit.List as C
+-- import qualified Data.Conduit.List as C
 
 import qualified Data.HashSet as HashSet
 
@@ -424,7 +424,8 @@ postUsersR = do
 
   formResult allUsersRes $ \case
     AllUsersLdapSync -> do
-      runDBJobs . runConduit $ selectSource [] [] .| C.mapM_ (queueDBJob . JobSynchroniseLdapUser . entityKey)
+      -- runDBJobs . runConduit $ selectSource [] [] .| C.mapM_ (queueDBJob . JobSynchroniseLdapUser . entityKey) -- to slow to execute directly
+      queueJob' JobSynchroniseLdapAll
       addMessageI Success MsgSynchroniseLdapAllUsersQueued
       redirect UsersR
     AllUsersAvsSync -> do
diff --git a/src/Jobs/Handler/SynchroniseLdap.hs b/src/Jobs/Handler/SynchroniseLdap.hs
index c0fc5758a..2b14ace76 100644
--- a/src/Jobs/Handler/SynchroniseLdap.hs
+++ b/src/Jobs/Handler/SynchroniseLdap.hs
@@ -3,7 +3,9 @@
 -- SPDX-License-Identifier: AGPL-3.0-or-later
 
 module Jobs.Handler.SynchroniseLdap
-  ( dispatchJobSynchroniseLdap, dispatchJobSynchroniseLdapUser
+  ( dispatchJobSynchroniseLdap
+  , dispatchJobSynchroniseLdapUser
+  , dispatchJobSynchroniseLdapAll
   , SynchroniseLdapException(..)
   ) where
 
@@ -49,7 +51,7 @@ dispatchJobSynchroniseLdapUser jUser = JobHandlerException $ do
     Just ldapPool ->
       runDB . void . runMaybeT . handleExc $ do
         user@User{userIdent,userLdapPrimaryKey} <- MaybeT $ get jUser
-        let upsertIdent = maybe userIdent CI.mk userLdapPrimaryKey 
+        let upsertIdent = maybe userIdent CI.mk userLdapPrimaryKey
         $logInfoS "SynchroniseLdap" [st|Synchronising #{upsertIdent}|]
 
         reTestAfter <- getsYesod $ view _appLdapReTestFailover
@@ -62,3 +64,6 @@ dispatchJobSynchroniseLdapUser jUser = JobHandlerException $ do
     handleExc
       = catchMPlus (Proxy @CampusUserException)
       . catchMPlus (Proxy @CampusUserConversionException)
+
+dispatchJobSynchroniseLdapAll :: JobHandler UniWorX
+dispatchJobSynchroniseLdapAll = JobHandlerAtomic . runConduit $ selectSource [] [] .| C.mapM_ (queueDBJob . JobSynchroniseLdapUser . entityKey)
\ No newline at end of file
diff --git a/src/Jobs/Types.hs b/src/Jobs/Types.hs
index 24bb89c3a..77e27c963 100644
--- a/src/Jobs/Types.hs
+++ b/src/Jobs/Types.hs
@@ -97,6 +97,7 @@ data Job
                               , jIteration :: Natural
                               }
   | JobSynchroniseLdapUser    { jUser :: UserId }
+  | JobSynchroniseLdapAll
   | JobSynchroniseAvs         { jNumIterations
                               , jEpoch
                               , jIteration :: Natural
@@ -350,6 +351,7 @@ jobNoQueueSame = \case
   JobDeleteTransactionLogIPs{}        -> Just JobNoQueueSame
   JobSynchroniseLdap{}                -> Just JobNoQueueSame
   JobSynchroniseLdapUser{}            -> Just JobNoQueueSame
+  JobSynchroniseLdapAll{}             -> Just JobNoQueueSameTag
   JobSynchroniseAvs{}                 -> Just JobNoQueueSame
   -- JobSynchroniseAvsUser{}             -> Just JobNoQueueSame
   -- JobSynchroniseAvsId{}               -> Just JobNoQueueSame