---
title: Troubleshooting
description: The following table lists situations that you could encounter with the Facebook Login Integration Kit, along with possible solutions.
component: facebook
page_id: facebook:facebook_login_integration_kit:pf_facebook_cic_troubleshooting
canonical_url: https://docs.pingidentity.com/integrations/facebook/facebook_login_integration_kit/pf_facebook_cic_troubleshooting.html
revdate: June 11, 2024
---

# Troubleshooting

The following table lists situations that you could encounter with the Facebook Login Integration Kit, along with possible solutions.

| Problem                                                                                                                                                                              | Possible Cause/Solution                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Users see the following error:```none
Feature Unavailable: Facebook Login is currently unavailable for this app, since this app does not have Advanced public_profile permission
``` | If you created your app on the Facebook developer site before February 2021, you need to manually request Advanced Access for the public\_profile permission.1) Sign on to the [Facebook developer apps](https://developers.facebook.com/apps) page.

2) Select the app you created in [Creating an app in Facebook](pf_facebook_cic_creating_an_app_in_facebook.html).

3) Go to **App Review > Permissions and Features**.

4) On the **public\_profile** row, click **Get Advanced Access**.

   ![vdr1623878597743](_images/vdr1623878597743.jpg)

5) Select the **I agree** check box. Click **Confirm**.

6) Confirm your password. Click **Submit**. |
| When attempting to sign on, the following error occurs:```none
Can't Load URL: The domain of this URL isn't included in the app's domains.
```                                       | For information on how to resolve this issue, see [Facebook CIC can't load URL method error](https://support.pingidentity.com/s/article/Facebook-CIC-cant-load-URL-method-error) in the Ping Identity Knowledge Base.                                                                                                                                                                                                                                                                                                                                                                                                                                       |
| The sign-on hyperlink in your application does not reach the PingFederate endpoint, and you are running the PingFederate server behind a reverse proxy.                              | Extend the existing proxy rules within your network to allow network traffic to the following endpoint:```
https://pf_host:pf_port/ext/facebook-authn/
```                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| The user is redirected to the **Unauthorized Redirect URL** in your adapter instance configuration with an `error_msg` parameter appended to the URL.                                | * During authentication, the user did not agree to the requested permissions, or

* There is an invalid permission configured in the adapter instance.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| The `HTTP Error 400 - Bad Request` error message occurs.                                                                                                                             | The user attempted to access the site URL endpoint directly from the browser.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |