# Advanced
URL: /docs/flutter/advanced

***

title: Advanced
description: FeatureBuddy Flutter SDK advanced
----------------------------------------------

## Setting user data

You can set user data by calling the `setUserData` function.

This function can be called from any screen in your app, but ensure you call it after initializing FeatureBuddy with `FeatureBuddyConfig.configure`.

This function takes an object with the following properties:

* `email`: The user's email.
* `userMeta`: The user's metadata. Can be any key-value pairs.

```dart
import 'package:featurebuddy/featurebuddy.dart';

void main() {
  FeatureBuddyConfig.configure(apiKey: 'YOUR_API_KEY_GOES_HERE');
  runApp(const MyApp());
}

Future<void> _setFakeUserData() async {
  try {
    await FeatureBuddyConfig.setUserData(
      email: 'john.doe@example.com',
      userMeta: {
        'first_name': 'John',
        'last_name': 'Doe',
        'subscription_status': 'active',
      },
    );
    if (mounted) {
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('User data set successfully')),
      );
    }
  } catch (e) {
    if (mounted) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Error setting user data: $e')),
      );
    }
  }
}
```