Facebook deep integration was one of the most notable features of Windows Phone ever since the first device arrived in the market. This however is going to change as Microsoft has been forced to kill Facebook integration in several services and platforms, including Windows Phone, Windows 8, and Outlook.com.

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Microsoft blames the updated Graph API of Facebook as the reason for shutting down Facebook Connect – its name for the integration across its services.

“Facebook’s Graph API is the tool that we use to connect your Microsoft account to Facebook. It brings contact information from your Facebook friends into Outlook.comand the Windows People app, keeps those contacts up-to-date, and provides options in apps and services like Photo Gallery, Movie Maker, and OneDrive.com to share to Facebook. We collectively refer to these features as Facebook Connect,” noted Microsoft in a post.

In a detailed post, the company has listed some of the services that will be hit by the unavailability of the Facebook integration which include Outlook.com, Windows Phone, and Windows (8 and 8.1).

If users have already connected their Facebook account to Outlook.com, the Facebook contacts will no longer be updated with information from the social network. A new user, on the other hand, will not be able to connect Facebook contacts to the Outlook.com account. Facebook events will be also no longer automatically synced to the Calendar on Outlook.com, Windows, Windows Phone and Office 365. The Windows 8 Photo Gallery and Movie Maker app users will be no longer able to publish images and videos directly to Facebook.

The Outlook Social Connector (OSC) in Outlook 2013 will no longer connect to Facebook. Microsoft notes that users will no notice an “Invalid user name or password” error in the OSC connection dialog.

For Office 365 Outlook Web app users, Facebook contacts will no longer be synchronized to the Office 365 account, if a Facebook account was previously connected.