diff --git a/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs b/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs
index a56c57a8..c48001bf 100644
--- a/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs
+++ b/src/Infrastructure/BotSharp.Core/Users/Services/UserService.cs
@@ -636,6 +636,8 @@ public class UserService : IUserService
 
         record.Phone = phone;
         record.RegionCode = regionCode;
+        record.UserName = phone;
+        record.FirstName = phone;
 
         var hooks = _services.GetServices<IAuthenticationHook>();
         foreach (var hook in hooks)
diff --git a/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.User.cs b/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.User.cs
index 7b1f66db..1d0e2596 100644
--- a/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.User.cs
+++ b/src/Plugins/BotSharp.Plugin.MongoStorage/Repository/MongoRepository.User.cs
@@ -133,7 +133,9 @@ public partial class MongoRepository
         var filter = Builders<UserDocument>.Filter.Eq(x => x.Id, userId);
         var update = Builders<UserDocument>.Update.Set(x => x.Phone, phone)
             .Set(x => x.UpdatedTime, DateTime.UtcNow)
-            .Set(x => x.RegionCode, regionCode);
+            .Set(x => x.RegionCode, regionCode)
+            .Set(x => x.UserName, phone)
+            .Set(x => x.FirstName, phone);
         _dc.Users.UpdateOne(filter, update);
     }