Xbox One owners will not be able to identify themselves by their real names via Xbox Live when the system launches this November.
A Microsoft rep has confirmed that the implementation of new functionality to allow gamers to use their real names on Xbox Live has been 'postponed'.
"While real identities continue to be part of our plans for the experience on Xbox One, at launch, customers will continue to search for friends using their Gamertags," the rep told Kotaku.
"Our teams are working hard to deliver a quality experience for Xbox One. This means prioritizing some features and sometimes postponing others for a later update," they added.
Microsoft has previously stated that Xbox One players would have the option to identify themselves on Xbox Live by either their Gamertags or real names.
But a recent video demonstration of Xbox One's Friends app showed friends listed by their Gamertags only.
PS4 players will be encouraged to attach their real names to their PSN accounts on the console, which has an all-new interface that places a heavy focus on deeply integrated social interaction.