diff --git a/client-web/src/modules/chats/presentation/components/GroupSettings.tsx b/client-web/src/modules/chats/presentation/components/GroupSettings.tsx
index f6d3cba..6b7e496 100644
--- a/client-web/src/modules/chats/presentation/components/GroupSettings.tsx
+++ b/client-web/src/modules/chats/presentation/components/GroupSettings.tsx
@@ -76,9 +76,10 @@ export default function GroupSettings({ chat, onClose, onGoToMessage }: GroupSet
 
   const fileInputRef = useRef<HTMLInputElement>(null);
   const searchInputRef = useRef<HTMLInputElement>(null);
+  const getSearchedUserId = (u: UserPresence & { userId?: string }) => u.id || u.userId || '';
 
   // Keep local state in sync with chat prop
-  useEffect(() => {
+  useEffect(() => { 
     setGroupName(chat.name || '');
     setGroupDesc(chat.description || '');
   }, [chat.name, chat.description]);
@@ -95,7 +96,10 @@ export default function GroupSettings({ chat, onClose, onGoToMessage }: GroupSet
         const results = await UserApi.searchUsers(searchQuery);
         // Filter out users already in the group
         const memberIds = new Set(chat.members.map((m) => m.user.id));
-        setSearchResults(results.filter((u) => !memberIds.has(u.id)));
+        setSearchResults(results.filter((u) => {
+          const candidateId = getSearchedUserId(u as UserPresence & { userId?: string });
+          return !!candidateId && !memberIds.has(candidateId);
+        }));
       } catch (e) {
         console.error(e);
       } finally {
@@ -565,10 +569,13 @@ export default function GroupSettings({ chat, onClose, onGoToMessage }: GroupSet
                       <Loader2 size={16} className="text-zinc-500 animate-spin" />
                     </div>
                   )}
-                  {searchResults.map((u) => (
+                  {searchResults.map((u) => {
+                    const candidateId = getSearchedUserId(u as UserPresence & { userId?: string });
+                    if (!candidateId) return null;
+                    return (
                     <button
-                      key={u.id}
-                      onClick={() => handleAddMember(u.id)}
+                      key={candidateId}
+                      onClick={() => handleAddMember(candidateId)}
                       className="flex items-center gap-3 w-full px-3 py-2 rounded-xl hover:bg-surface-hover transition-colors"
                     >
                       <Avatar 
@@ -583,7 +590,8 @@ export default function GroupSettings({ chat, onClose, onGoToMessage }: GroupSet
                       </div>
                       <UserPlus size={14} className="text-knot-400 flex-shrink-0" />
                     </button>
-                  ))}
+                    );
+                  })}
                   {searchQuery.trim() && !isSearching && searchResults.length === 0 && (
                     <p className="text-xs text-zinc-500 text-center py-2">{t('usersNotFound')}</p>
                   )}