diff --git a/src/api/adminUsers.ts b/src/api/adminUsers.ts
index ef47cda..abd4863 100644
--- a/src/api/adminUsers.ts
+++ b/src/api/adminUsers.ts
@@ -142,7 +142,7 @@ export interface UserDetailResponse {
   promo_offer_discount_source: string | null;
   promo_offer_discount_expires_at: string | null;
   recent_transactions: UserTransactionItem[];
-  remnawave_uuid: string | null;
+  remnawave_id: number | null;
 }
 
 export interface UserPanelInfo {
@@ -271,7 +271,7 @@ export interface UserAvailableTariffsResponse {
 
 // Sync types
 export interface PanelUserInfo {
-  uuid: string | null;
+  id: number;
   short_uuid: string | null;
   username: string | null;
   status: string | null;
@@ -295,7 +295,7 @@ export interface SyncToPanelResponse {
   success: boolean;
   message: string;
   action: string;
-  panel_uuid: string | null;
+  panel_user_id: number | null;
   changes: Record<string, unknown>;
   errors: string[];
 }
@@ -303,7 +303,7 @@ export interface SyncToPanelResponse {
 export interface PanelSyncStatusResponse {
   user_id: number;
   telegram_id: number;
-  remnawave_uuid: string | null;
+  remnawave_id: number | null;
   subscription_id: number | null;
   subscription_tariff_name: string | null;
   last_sync: string | null;
diff --git a/src/components/admin/userDetail/SyncTab.tsx b/src/components/admin/userDetail/SyncTab.tsx
index d88565d..f508926 100644
--- a/src/components/admin/userDetail/SyncTab.tsx
+++ b/src/components/admin/userDetail/SyncTab.tsx
@@ -151,16 +151,16 @@ export function SyncTab({
         </div>
       )}
 
-      {/* UUID info */}
+      {/* Panel identity */}
       <div className="rounded-xl bg-dark-800/50 p-4">
         {syncStatus?.subscription_tariff_name && (
           <div className="mb-2 text-xs text-dark-500">{syncStatus.subscription_tariff_name}</div>
         )}
-        <div className="mb-1 text-sm text-dark-400">Remnawave UUID</div>
+        <div className="mb-1 text-sm text-dark-400">Remnawave ID</div>
         <div className="break-all font-mono text-sm text-dark-100">
-          {syncStatus?.remnawave_uuid ||
-            user.remnawave_uuid ||
-            t('admin.users.detail.sync.notLinked')}
+          {/* Remnawave 3.0.0 identifies a panel user by a numeric id, so 0 is not
+              a valid id but ?? would still render it — check for null explicitly. */}
+          {syncStatus?.remnawave_id ?? user.remnawave_id ?? t('admin.users.detail.sync.notLinked')}
         </div>
       </div>
 
diff --git a/src/locales/ru.json b/src/locales/ru.json
index 0e1e6a1..080e88f 100644
--- a/src/locales/ru.json
+++ b/src/locales/ru.json
@@ -2580,7 +2580,7 @@
         "Traffic Daily Check Enabled": "Ежедневная проверка",
         "Traffic Daily Check Time": "Время проверки",
         "Traffic Daily Threshold Gb": "Порог в день (ГБ)",
-        "Traffic Excluded User Uuids": "Исключённые UUID",
+        "Traffic Excluded User Ids": "Исключённые ID пользователей панели",
         "Traffic Fast Check Enabled": "Быстрая проверка",
         "Traffic Fast Check Interval Minutes": "Интервал (мин)",
         "Traffic Fast Check Threshold Gb": "Порог (ГБ)",