diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 50a5096..2b41d38 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,15 +4,9 @@
     <option name="autoReloadType" value="ALL" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="3fefb2c4-b6f9-466b-a523-53352e8d6f95" name="更改" comment=":sparkles: Auth config to limit auth steps">
+    <list default="true" id="3fefb2c4-b6f9-466b-a523-53352e8d6f95" name="更改" comment=":recycle: Single table to store auth preferences">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pkg/internal/database/migrator.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/database/migrator.go" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pkg/internal/models/accounts.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/models/accounts.go" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pkg/internal/models/preferences.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/models/preferences.go" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pkg/internal/server/api/index.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/server/api/index.go" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pkg/internal/server/api/preferences_api.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/server/api/preferences_api.go" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pkg/internal/services/preferences.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/services/preferences.go" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/pkg/internal/services/ticket.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/services/ticket.go" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pkg/internal/grpc/notifier.go" beforeDir="false" afterPath="$PROJECT_DIR$/pkg/internal/grpc/notifier.go" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -159,7 +153,6 @@
     </option>
   </component>
   <component name="VcsManagerConfiguration">
-    <MESSAGE value=":sparkles: Bots aka. automated accounts" />
     <MESSAGE value=":sparkles: Return affiliated to and automated by in userinfo grpc call" />
     <MESSAGE value=":sparkles: Pagination bots api" />
     <MESSAGE value=":bug: Fix query issue" />
@@ -184,7 +177,8 @@
     <MESSAGE value=":sparkles: Realm avatar, banner and access policy" />
     <MESSAGE value=":sparkles: Account deletion" />
     <MESSAGE value=":sparkles: Auth config to limit auth steps" />
-    <option name="LAST_COMMIT_MESSAGE" value=":sparkles: Auth config to limit auth steps" />
+    <MESSAGE value=":recycle: Single table to store auth preferences" />
+    <option name="LAST_COMMIT_MESSAGE" value=":recycle: Single table to store auth preferences" />
   </component>
   <component name="VgoProject">
     <settings-migrated>true</settings-migrated>
diff --git a/pkg/internal/grpc/notifier.go b/pkg/internal/grpc/notifier.go
index 07d8f99..7e076cb 100644
--- a/pkg/internal/grpc/notifier.go
+++ b/pkg/internal/grpc/notifier.go
@@ -3,6 +3,7 @@ package grpc
 import (
 	"context"
 	"fmt"
+	"github.com/rs/zerolog/log"
 
 	"git.solsynth.dev/hydrogen/passport/pkg/internal/database"
 	jsoniter "github.com/json-iterator/go"
@@ -37,6 +38,8 @@ func (v *Server) NotifyUser(_ context.Context, in *proto.NotifyUserRequest) (*pr
 		AccountID:   user.ID,
 	}
 
+	log.Debug().Str("topic", notification.Topic).Uint("uid", notification.AccountID).Msg("Notifying user...")
+
 	if notification.IsRealtime {
 		if err := services.PushNotification(notification); err != nil {
 			return nil, err
@@ -64,8 +67,13 @@ func (v *Server) NotifyUserBatch(_ context.Context, in *proto.NotifyUserBatchReq
 	var metadata map[string]any
 	_ = jsoniter.Unmarshal(in.GetNotify().GetMetadata(), &metadata)
 
+	var checklist = make(map[uint]bool, len(users))
 	var notifications []models.Notification
 	for _, user := range users {
+		if checklist[user.ID] {
+			continue
+		}
+
 		notification := models.Notification{
 			Topic:       in.GetNotify().GetTopic(),
 			Title:       in.GetNotify().GetTitle(),
@@ -79,10 +87,13 @@ func (v *Server) NotifyUserBatch(_ context.Context, in *proto.NotifyUserBatchReq
 			Account:     user,
 			AccountID:   user.ID,
 		}
+		checklist[user.ID] = true
 
 		notifications = append(notifications, notification)
 	}
 
+	log.Debug().Str("topic", notifications[0].Topic).Any("uid", lo.Keys(checklist)).Msg("Notifying users...")
+
 	if in.GetNotify().GetIsRealtime() {
 		services.PushNotificationBatch(notifications)
 	} else {
@@ -105,8 +116,13 @@ func (v *Server) NotifyAllUser(_ context.Context, in *proto.NotifyRequest) (*pro
 	var metadata map[string]any
 	_ = jsoniter.Unmarshal(in.GetMetadata(), &metadata)
 
+	var checklist = make(map[uint]bool, len(users))
 	var notifications []models.Notification
 	for _, user := range users {
+		if checklist[user.ID] {
+			continue
+		}
+
 		notification := models.Notification{
 			Topic:       in.GetTopic(),
 			Title:       in.GetTitle(),
@@ -120,10 +136,13 @@ func (v *Server) NotifyAllUser(_ context.Context, in *proto.NotifyRequest) (*pro
 			Account:     user,
 			AccountID:   user.ID,
 		}
+		checklist[user.ID] = true
 
 		notifications = append(notifications, notification)
 	}
 
+	log.Debug().Str("topic", notifications[0].Topic).Any("uid", lo.Keys(checklist)).Msg("Notifying users...")
+
 	if in.GetIsRealtime() {
 		services.PushNotificationBatch(notifications)
 	} else {