Questions about GattLocalCharacteristicParameters and creating Characteristics

Question

Hello, I'm creating a custom characteristic with the code below:

GattLocalCharacteristicParameters scanStateCharacteristicsParameters = new GattLocalCharacteristicParameters  
        {  
            CharacteristicProperties = GattCharacteristicProperties.Read | GattCharacteristicProperties.WriteWithoutResponse | GattCharacteristicProperties.Notify,  
            WriteProtectionLevel = GattProtectionLevel.Plain,  
            ReadProtectionLevel = GattProtectionLevel.Plain  
        };  
  
            scanStateCharacteristicsParameters.UserDescription = "Scan State";  
  
            GattLocalCharacteristicResult result =  
               await ServiceProvider.Service.CreateCharacteristicAsync(  
                   CustomCharacteristicUuids.WifiScanStateCharacteristicGuid,  
                   scanStateCharacteristicsParameters);  

According to the documentation(https://learn.microsoft.com/en-us/windows/uwp/devices-sensors/gatt-server), when a characteristic is marked as notify, a type descriptor (Client Characteristic Configuration) is created automatically. But on the client the only descriptor that is available is the Characteristic User Description.
Does anyone know what's going on?