diff --git a/src/CMSMicroservice.Application/OtpTokenCQ/Commands/VerifyOtpToken/VerifyOtpTokenCommandHandler.cs b/src/CMSMicroservice.Application/OtpTokenCQ/Commands/VerifyOtpToken/VerifyOtpTokenCommandHandler.cs
index 9d2bc88..ed0e1c6 100644
--- a/src/CMSMicroservice.Application/OtpTokenCQ/Commands/VerifyOtpToken/VerifyOtpTokenCommandHandler.cs
+++ b/src/CMSMicroservice.Application/OtpTokenCQ/Commands/VerifyOtpToken/VerifyOtpTokenCommandHandler.cs
@@ -52,7 +52,10 @@ public class VerifyOtpTokenCommandHandler : IRequestHandler<VerifyOtpTokenComman
 
             var parent = await _context.Users.FirstOrDefaultAsync(u => u.ReferralCode == request.ParentReferralCode, cancellationToken: cancellationToken);
             if (parent == null)
-                return new VerifyOtpTokenResponseDto() { Success = false, Message = "والد وجود ندارد." };
+                return new VerifyOtpTokenResponseDto() { Success = false, Message = "معرف وجود ندارد." };
+
+            if (await _context.Users.CountAsync(x => x.ParentId == parent.Id, cancellationToken: cancellationToken) > 1)
+                return new VerifyOtpTokenResponseDto() { Success = false, Message = "ظرفیت معرف تکمیل است!!" };
 
             user = new User
             {