diff --git a/src/Simplex/Messaging/Agent.hs b/src/Simplex/Messaging/Agent.hs
index 7417b823a..61f9d5da1 100644
--- a/src/Simplex/Messaging/Agent.hs
+++ b/src/Simplex/Messaging/Agent.hs
@@ -2067,12 +2067,10 @@ sendNtfConnCommands c cmd = do
   ns <- asks ntfSupervisor
   connIds <- liftIO $ S.toList <$> getSubscriptions c
   rs <- lift $ withStoreBatch' c (\db -> map (getConnData db) connIds)
-  let (connIds', errs) = enabledNtfConns (zip connIds rs)
+  let (connIds', cErrs) = enabledNtfConns (zip connIds rs)
   forM_ (L.nonEmpty connIds') $ \connIds'' ->
     atomically $ writeTBQueue (ntfSubQ ns) (cmd, connIds'')
-  -- TODO [batch ntf] notify ERRS
-  forM_ errs $ \(connId, e) ->
-    atomically $ writeTBQueue (subQ c) ("", connId, AEvt SAEConn $ ERR e)
+  unless (null cErrs) $ atomically $ writeTBQueue (subQ c) ("", "", AEvt SAENone $ ERRS cErrs)
   where
     enabledNtfConns :: [(ConnId, Either AgentErrorType (Maybe (ConnData, ConnectionMode)))] -> ([ConnId], [(ConnId, AgentErrorType)])
     enabledNtfConns = foldr addEnabledConn ([], [])
diff --git a/src/Simplex/Messaging/Agent/NtfSubSupervisor.hs b/src/Simplex/Messaging/Agent/NtfSubSupervisor.hs
index c45a3184a..ad1acae5a 100644
--- a/src/Simplex/Messaging/Agent/NtfSubSupervisor.hs
+++ b/src/Simplex/Messaging/Agent/NtfSubSupervisor.hs
@@ -5,6 +5,7 @@
 {-# LANGUAGE OverloadedLists #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE TupleSections #-}
 {-# OPTIONS_GHC -fno-warn-ambiguous-fields #-}
 
 module Simplex.Messaging.Agent.NtfSubSupervisor
@@ -23,7 +24,7 @@ import Control.Monad
 import Control.Monad.Reader
 import Control.Monad.Trans.Except
 import Data.Bifunctor (first)
-import Data.Either (rights)
+import Data.Either (partitionEithers)
 import Data.Foldable (foldr')
 import Data.List.NonEmpty (NonEmpty (..))
 import qualified Data.List.NonEmpty as L
@@ -66,13 +67,18 @@ runNtfSupervisor c = do
       notifyErr e
     notifyErr e = notifyInternalError' c $ "runNtfSupervisor error " <> show e
 
--- TODO [batch ntf] notify ERRS
+partitionErrs :: (a -> ConnId) -> [a] -> [Either AgentErrorType b] -> ([(ConnId, AgentErrorType)], [b])
+partitionErrs f xs = partitionEithers . zipWith (\x -> first (f x,)) xs
+{-# INLINE partitionErrs #-}
+
 processNtfCmd :: AgentClient -> (NtfSupervisorCommand, NonEmpty ConnId) -> AM ()
 processNtfCmd c (cmd, connIds) = do
   logInfo $ "processNtfCmd - cmd = " <> tshow cmd
+  let connIds' = L.toList connIds
   case cmd of
     NSCCreate -> do
-      rqSubActions <- lift $ rights <$> withStoreBatch c (\db -> map (getQueueSub db) (L.toList connIds))
+      (cErrs, rqSubActions) <- lift $ partitionErrs id connIds' <$> (withStoreBatch c $ \db -> map (getQueueSub db) connIds')
+      notifyErrs c cErrs
       logInfo $ "processNtfCmd, NSCCreate - length rqSubs = " <> tshow (length rqSubActions)
       let (ns, rs, css, cns) = partitionQueueSubActions rqSubActions
       createNewSubs ns
@@ -93,7 +99,8 @@ processNtfCmd c (cmd, connIds) = do
         createNewSubs rqs = do
           withTokenServer $ \ntfServer -> do
             let newSubs = map (rqToNewSub ntfServer) rqs
-            void $ lift $ withStoreBatch c (\db -> map (storeNewSub db) newSubs)
+            (cErrs, _) <- lift $ partitionErrs ntfSubConnId newSubs <$> (withStoreBatch c $ \db -> map (storeNewSub db) newSubs)
+            notifyErrs c cErrs
             kickSMPWorkers rqs
           where
             rqToNewSub :: NtfServer -> RcvQueue -> NtfSubscription
@@ -104,7 +111,8 @@ processNtfCmd c (cmd, connIds) = do
         resetSubs rqSubs = do
           withTokenServer $ \ntfServer -> do
             let subsToReset = map (toResetSub ntfServer) rqSubs
-            lift $ void $ withStoreBatch' c (\db -> map (\sub -> supervisorUpdateNtfSub db sub (NSASMP NSASmpKey)) subsToReset)
+            (cErrs, _) <- lift $ partitionErrs ntfSubConnId subsToReset <$> (withStoreBatch' c $ \db -> map (storeResetSub db) subsToReset)
+            notifyErrs c cErrs
             let rqs = map fst rqSubs
             kickSMPWorkers rqs
           where
@@ -112,6 +120,9 @@ processNtfCmd c (cmd, connIds) = do
             toResetSub ntfServer (rq, sub) =
               let RcvQueue {server = smpServer} = rq
                in sub {smpServer, ntfQueueId = Nothing, ntfServer, ntfSubId = Nothing, ntfSubStatus = NASNew}
+            storeResetSub :: DB.Connection -> NtfSubscription -> IO ()
+            storeResetSub db sub = supervisorUpdateNtfSub db sub (NSASMP NSASmpKey)
+        ntfSubConnId NtfSubscription {connId} = connId
         partitionQueueSubActions ::
           [(RcvQueue, Maybe NtfSupervisorSub)] ->
           ( [RcvQueue], -- new subs
@@ -146,13 +157,19 @@ processNtfCmd c (cmd, connIds) = do
                         NSANtf _ -> (ns, rs, css, subNtfServer : cns)
                 reset = (ns, (rq, sub) : rs, css, cns)
     NSCSmpDelete -> do
-      rqs <- lift $ rights <$> withStoreBatch c (\db -> map (fmap (first storeError) . getPrimaryRcvQueue db) (L.toList connIds))
+      (cErrs, rqs) <- lift $ partitionErrs id connIds' <$> (withStoreBatch c $ \db -> map (getQueue db) connIds')
       logInfo $ "processNtfCmd, NSCSmpDelete - length rqs = " <> tshow (length rqs)
-      lift $ void $ withStoreBatch' c (\db -> map (\rq -> supervisorUpdateNtfAction db (qConnId rq) (NSASMP NSASmpDelete)) rqs)
+      (cErrs', _) <- lift $ partitionErrs qConnId rqs <$> (withStoreBatch' c $ \db -> map (updateAction db) rqs)
+      notifyErrs c (cErrs <> cErrs')
       kickSMPWorkers rqs
+      where
+        getQueue :: DB.Connection -> ConnId -> IO (Either AgentErrorType RcvQueue)
+        getQueue db connId = first storeError <$> getPrimaryRcvQueue db connId
+        updateAction :: DB.Connection -> RcvQueue -> IO ()
+        updateAction db rq = supervisorUpdateNtfAction db (qConnId rq) (NSASMP NSASmpDelete)
     NSCNtfWorker ntfServer -> lift . void $ getNtfNTFWorker True c ntfServer
     NSCNtfSMPWorker smpServer -> lift . void $ getNtfSMPWorker True c smpServer
-    NSCDeleteSub -> void $ lift $ withStoreBatch' c $ \db -> map (deleteNtfSubscription' db) (L.toList connIds)
+    NSCDeleteSub -> void $ lift $ withStoreBatch' c $ \db -> map (deleteNtfSubscription' db) connIds'
   where
     kickSMPWorkers :: [RcvQueue] -> AM ()
     kickSMPWorkers rqs = do
@@ -343,6 +360,10 @@ notifyInternalError' :: MonadIO m => AgentClient -> String -> m ()
 notifyInternalError' AgentClient {subQ} internalErrStr = atomically $ writeTBQueue subQ ("", "", AEvt SAEConn $ ERR $ INTERNAL internalErrStr)
 {-# INLINE notifyInternalError' #-}
 
+notifyErrs :: MonadIO m => AgentClient -> [(ConnId, AgentErrorType)] -> m ()
+notifyErrs AgentClient {subQ} connErrs = unless (null connErrs) $ atomically $ writeTBQueue subQ ("", "", AEvt SAENone $ ERRS connErrs)
+{-# INLINE notifyErrs #-}
+
 getNtfToken :: AM' (Maybe NtfToken)
 getNtfToken = do
   tkn <- asks $ ntfTkn . ntfSupervisor
diff --git a/src/Simplex/Messaging/Agent/Protocol.hs b/src/Simplex/Messaging/Agent/Protocol.hs
index bfa6e46b0..635bb1aee 100644
--- a/src/Simplex/Messaging/Agent/Protocol.hs
+++ b/src/Simplex/Messaging/Agent/Protocol.hs
@@ -366,6 +366,7 @@ data AEvent (e :: AEntity) where
   OK :: AEvent AEConn
   JOINED :: SndQueueSecured -> AEvent AEConn
   ERR :: AgentErrorType -> AEvent AEConn
+  ERRS :: [(ConnId, AgentErrorType)] -> AEvent AENone
   SUSPENDED :: AEvent AENone
   RFPROG :: Int64 -> Int64 -> AEvent AERcvFile
   RFDONE :: FilePath -> AEvent AERcvFile
@@ -436,6 +437,7 @@ data AEventTag (e :: AEntity) where
   OK_ :: AEventTag AEConn
   JOINED_ :: AEventTag AEConn
   ERR_ :: AEventTag AEConn
+  ERRS_ :: AEventTag AENone
   SUSPENDED_ :: AEventTag AENone
   -- XFTP commands and responses
   RFDONE_ :: AEventTag AERcvFile
@@ -490,6 +492,7 @@ aEventTag = \case
   OK -> OK_
   JOINED _ -> JOINED_
   ERR _ -> ERR_
+  ERRS _ -> ERRS_
   SUSPENDED -> SUSPENDED_
   RFPROG {} -> RFPROG_
   RFDONE {} -> RFDONE_