diff --git a/go/chao-sdk-core/internal/conversation_msg/conversation_notification.go b/go/chao-sdk-core/internal/conversation_msg/conversation_notification.go
index 11cc42d..84305e6 100644
--- a/go/chao-sdk-core/internal/conversation_msg/conversation_notification.go
+++ b/go/chao-sdk-core/internal/conversation_msg/conversation_notification.go
@@ -73,7 +73,7 @@ func (c *Conversation) doNotificationNew(c2v common.Cmd2Value) {
 		}
 
 		syncFunctions := []func(c context.Context) error{
-			c.group.SyncAllJoinedGroupsAndMembers, c.friend.IncrSyncFriends,
+			c.group.SyncAllJoinedGroupsAndMembers, c.friend.IncrSyncFriends, c.SyncAllConversations,
 		}
 
 		for _, syncFunc := range syncFunctions {
@@ -92,7 +92,6 @@ func (c *Conversation) doNotificationNew(c2v common.Cmd2Value) {
 	case constant.MsgSyncEnd:
 		log.ZDebug(ctx, "MsgSyncEnd", "time", time.Since(c.startTime).Milliseconds())
 		defer c.ConversationListener().OnSyncServerFinish()
-		go c.SyncAllConversations(ctx)
 	}
 
 	for conversationID, msgs := range allMsg {
diff --git a/go/chao-sdk-core/internal/conversation_msg/sync.go b/go/chao-sdk-core/internal/conversation_msg/sync.go
index b2a2896..ec87f67 100644
--- a/go/chao-sdk-core/internal/conversation_msg/sync.go
+++ b/go/chao-sdk-core/internal/conversation_msg/sync.go
@@ -26,7 +26,7 @@ import (
 	"github.com/openimsdk/tools/log"
 )
 
-func (c *Conversation) SyncConversationsAndTriggerCallback(ctx context.Context, conversationsOnServer []*model_struct.LocalConversation) error {
+func (c *Conversation) SyncConversationsAndTriggerCallback(ctx context.Context, conversationsOnServer []*model_struct.LocalConversation, skipNotice bool) error {
 	conversationsOnLocal, err := c.db.GetAllConversations(ctx)
 	if err != nil {
 		return err
@@ -39,7 +39,7 @@ func (c *Conversation) SyncConversationsAndTriggerCallback(ctx context.Context,
 			c.doUpdateConversation(common.Cmd2Value{Value: common.UpdateConNode{ConID: server.ConversationID, Action: constant.ConChange, Args: []string{server.ConversationID}}})
 		}
 		return nil
-	}, true); err != nil {
+	}, true, skipNotice); err != nil {
 		return err
 	}
 	return nil
@@ -50,7 +50,7 @@ func (c *Conversation) SyncConversations(ctx context.Context, conversationIDs []
 	if err != nil {
 		return err
 	}
-	return c.SyncConversationsAndTriggerCallback(ctx, conversationsOnServer)
+	return c.SyncConversationsAndTriggerCallback(ctx, conversationsOnServer, false)
 }
 
 func (c *Conversation) SyncAllConversations(ctx context.Context) error {
@@ -60,7 +60,7 @@ func (c *Conversation) SyncAllConversations(ctx context.Context) error {
 		return err
 	}
 	log.ZDebug(ctx, "get server cost time", "cost time", time.Since(ccTime), "conversation on server", conversationsOnServer)
-	return c.SyncConversationsAndTriggerCallback(ctx, conversationsOnServer)
+	return c.SyncConversationsAndTriggerCallback(ctx, conversationsOnServer, true)
 }
 
 func (c *Conversation) SyncAllConversationHashReadSeqs(ctx context.Context) error {
diff --git a/go/chao-sdk-core/pkg/syncer/syncer.go b/go/chao-sdk-core/pkg/syncer/syncer.go
index d002276..a2ac0aa 100644
--- a/go/chao-sdk-core/pkg/syncer/syncer.go
+++ b/go/chao-sdk-core/pkg/syncer/syncer.go
@@ -243,9 +243,13 @@ func (s *Syncer[T, RESP, V]) Sync(ctx context.Context, serverData []T, localData
 		}
 	}()
 	skipDeletion := false
+	skipNotice := false
 	if len(skipDeletionAndNotice) > 0 {
 		skipDeletion = skipDeletionAndNotice[0]
 	}
+	if len(skipDeletionAndNotice) > 1 {
+		skipNotice = skipDeletionAndNotice[1]
+	}
 
 	// If both server and local data are empty, log and return.
 	if len(serverData) == 0 && len(localData) == 0 {
@@ -271,9 +275,11 @@ func (s *Syncer[T, RESP, V]) Sync(ctx context.Context, serverData []T, localData
 				log.ZError(ctx, "sync insert failed", err, "type", s.ts, "server", server, "local", local)
 				return err
 			}
-			if err := s.onNotice(ctx, Insert, server, local, notice); err != nil {
-				log.ZError(ctx, "sync notice insert failed", err, "type", s.ts, "server", server, "local", local)
-				return err
+			if !skipNotice {
+				if err := s.onNotice(ctx, Insert, server, local, notice); err != nil {
+					log.ZError(ctx, "sync notice insert failed", err, "type", s.ts, "server", server, "local", local)
+					return err
+				}
 			}
 			continue
 		}
@@ -283,9 +289,11 @@ func (s *Syncer[T, RESP, V]) Sync(ctx context.Context, serverData []T, localData
 
 		// If the local and server items are equal, notify and continue.
 		if s.eq(server, local) {
-			if err := s.onNotice(ctx, Unchanged, local, server, notice); err != nil {
-				log.ZError(ctx, "sync notice unchanged failed", err, "type", s.ts, "server", server, "local", local)
-				return err
+			if !skipNotice {
+				if err := s.onNotice(ctx, Unchanged, local, server, notice); err != nil {
+					log.ZError(ctx, "sync notice unchanged failed", err, "type", s.ts, "server", server, "local", local)
+					return err
+				}
 			}
 			continue
 		}
@@ -296,9 +304,11 @@ func (s *Syncer[T, RESP, V]) Sync(ctx context.Context, serverData []T, localData
 			log.ZError(ctx, "sync update failed", err, "type", s.ts, "server", server, "local", local)
 			return err
 		}
-		if err := s.onNotice(ctx, Update, server, local, notice); err != nil {
-			log.ZError(ctx, "sync notice update failed", err, "type", s.ts, "server", server, "local", local)
-			return err
+		if !skipNotice {
+			if err := s.onNotice(ctx, Update, server, local, notice); err != nil {
+				log.ZError(ctx, "sync notice update failed", err, "type", s.ts, "server", server, "local", local)
+				return err
+			}
 		}
 	}
 
@@ -315,9 +325,11 @@ func (s *Syncer[T, RESP, V]) Sync(ctx context.Context, serverData []T, localData
 			return err
 		}
 		var server T
-		if err := s.onNotice(ctx, Delete, server, local, notice); err != nil {
-			log.ZError(ctx, "sync notice delete failed", err, "type", s.ts, "local", local)
-			return err
+		if !skipNotice {
+			if err := s.onNotice(ctx, Delete, server, local, notice); err != nil {
+				log.ZError(ctx, "sync notice delete failed", err, "type", s.ts, "local", local)
+				return err
+			}
 		}
 	}
 	return nil