diff --git a/adminfront/src/features/users/UserDetailPage.tsx b/adminfront/src/features/users/UserDetailPage.tsx
index 38144170..35ff6068 100644
--- a/adminfront/src/features/users/UserDetailPage.tsx
+++ b/adminfront/src/features/users/UserDetailPage.tsx
@@ -95,7 +95,7 @@ import { resolvePersonalTenant } from "./utils/personalTenant";
 
 type UserFormValues = Omit<UserUpdateRequest, "metadata"> & {
   email: string;
-  metadata: Record<string, Record<string, string | number | boolean>> & {
+  metadata: Record<string, Record<string, string | number | boolean | string[]> | string[] | undefined> & {
     sub_email?: string[];
   };
 };
@@ -768,6 +768,7 @@ function UserDetailPage() {
     // Filter out undefined/null/empty strings from metadata
     const cleanMetadata = Object.fromEntries(
       Object.entries(data.metadata).map(([tenantId, fields]) => {
+        if (!fields || Array.isArray(fields)) return [tenantId, fields];
         const cleanFields = Object.fromEntries(
           Object.entries(fields).filter(
             ([_, v]) => v !== undefined && v !== null && v !== "",
@@ -786,7 +787,9 @@ function UserDetailPage() {
     
     // Parse sub_email
     let sub_email: string[] = [];
-    if (typeof rawSubEmail === "string" && rawSubEmail.trim() !== "") {
+    if (Array.isArray(rawSubEmail)) {
+      sub_email = rawSubEmail.filter(e => typeof e === 'string' && e.includes("@"));
+    } else if (typeof rawSubEmail === "string" && rawSubEmail.trim() !== "") {
       sub_email = rawSubEmail
         .split(/[;,\n\r\t]/)
         .map((e) => e.trim())
@@ -982,13 +985,13 @@ function UserDetailPage() {
                 <Mail size={14} className="text-primary/70" />
                 {user.email}
               </div>
-              {user.metadata?.sub_email &&
+              {Boolean(user.metadata?.sub_email &&
                 Array.isArray(user.metadata.sub_email) &&
-                user.metadata.sub_email.length > 0 && (
+                user.metadata.sub_email.length > 0) && (
                   <div className="flex items-center gap-1.5 bg-background px-2.5 py-1 rounded-full border">
                     <Mail size={14} className="text-primary/40" />
                     <span className="text-[10px] font-bold">
-                      +{user.metadata.sub_email.length}
+                      +{Array.isArray(user.metadata?.sub_email) ? user.metadata.sub_email.length : 0}
                     </span>
                   </div>
                 )}