# Customize the Launch a Game on Facebook Use Case



This document shows you how to customize the **Launch a Game on Facebook** use case you added to your app during the [app creation process](https://developers.facebook.com/documentation/development/create-an-app).

## Use case customization

Under **Launch a game on Facebook** use case, you can see that the following have been added to your use case:

* **Facebook Login for Gaming**
* **Instant Games**
* The `gaming_profile` permission
* The `gaming_user_picture` permission

Click the **Customize** button to the right of **Launch a game on Facebook** to customize the following items for your use case:

* **Details** – Add a tagline, description, images and icons, game preview videos, and more
* **Localize** – Translate your game content in up to 104 languages
* **Web hosting** – Upload your game client code directly to Facebook instead of hosting it on your own servers
* **Login settings** – Add more permissions to ask users for access
* **Feedback** – Get all feedback submitted from players within the last 90 days

## Facebook Login for Gaming

### Settings

Facebook Login for Gaming allows you to control oAuth settings, and add a deauthorization callback URL and redirect URI validator.

### Quickstart

The Facebook Login for Gaming quickstart allows you to quickly implement Facebook Login for Gaming in your app.

## Permissions

You will see a list of permissions that are available in the Instant Games use case with a full description and requirements for each.

* `email` – Can be added if your app needs a person's email address
* `gaming_profile` – Automatically added and can not be removed
* `gaming_user_locale`  – Can be added if your app needs a person's locale
* `gaming_user_picture` – Automatically added and can not be removed

After you add a permission to your app, you can see the status for that permission:

* Ready for live mode – This permission has been approved in App Review
* Ready to Testing – You can test API calls to endpoints that require this permission
* Verification Required – This permission has not yet been approved in App Review

You can also see the number of successful API calls you have made to endpoints that require each permission.

## Next Steps

Now that you have successfully customized your Launch a game on Facebook use case, you can [add additional use cases](https://developers.facebook.com/documentation/development/create-an-app/instant-games-use-case/additional-uses-cases) or [update the settings for your app](https://developers.facebook.com/documentation/development/create-an-app/app-dashboard/basic-settings) in the app Dashboard.

## See Also

To learn more about the concepts, endpoints, and permissions mentioned in this document, please visit the following guides:

- [Facebook Login for Gaming](https://developers.facebook.com/docs/development/create-an-app/facebook-login-for-games-use-case)

- [Instant Games](https://developers.facebook.com/docs/games/build/instant-games)

- [Permissions Reference](https://developers.facebook.com/docs/permissions)