# “URL is blocked” error message when connecting to Facebook in using CData Connect Server

**URL:** <https://community.cdata.com/t/url-is-blocked-error-message-when-connecting-to-facebook-in-using-cdata-connect-server/420>\
**Category:** Editions\
**Tags:** article, oauth, connect-server, facebook\
**Created:** [September 26, 2023, 2:59pm UTC](https://community.cdata.com/t/url-is-blocked-error-message-when-connecting-to-facebook-in-using-cdata-connect-server/420 "2023-09-26T14:59:23Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Arsilda\_D](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@Arsilda\_D](https://community.cdata.com/u/Arsilda_D)\
**Post date:** [September 26, 2023, 2:59pm UTC](https://community.cdata.com/t/url-is-blocked-error-message-when-connecting-to-facebook-in-using-cdata-connect-server/420/1 "2023-09-26T14:59:23Z")

</div>

![e760a69c-4f56-4abe-aea9-b62a7344a37a.png](https://us1.discourse-cdn.com/cdata/original/1X/dd02bac11f9ce10bc3495cbe3caa67c6b8992ae4.png)

In order to enable Connect Server to communicate with the Facebook API during the sign-in process, the authorization server (OAuth) will redirect the user to the Connect Server redirect URL, which by default is: [https://oauth.cdata.com/oauth/](https://oauth.cdata.com/oauth/).

This URL must correspond to the callback URL specified in the application configuration, as illustrated in the accompanying screenshot.

 ![f63468ce-054b-4255-aedb-2998cbcf5fc2.png](https://us1.discourse-cdn.com/cdata/original/1X/b0590636b15a70d38d9d886d1d475cef4f495a1a.png)

You will have the option to enter this value in the Meta for Developers section of your Facebook login → Settings page.