Custom Matchmaking is a Game Mode in Fortnite: Battle Royale. It can be used to play any game mode of Fortnite: Battle Royale but only with those who use the same code. Only those who requested access to the feature from Epic Games, when being a popular streamer/YouTuber etc. can host a Custom Matchmaking Lobby.
It's widely known by content creators for fashion shows, hide-and-seek, and other custom Game Modes where it is not possible in Creative. In competitive, professionals use this for scrims (simulating a Tournament match). Third party tournament organizers use this to host tournaments not in the Compete tab.
How to Unlock[]
To get Custom Matchmaking, you must have at least 1000 followers/subscribers on any social media platform, (Twitch, Twitter, TikTok, YouTube, etc.). Then you must contact Epic Games for access to it.
Functionality[]
The host of a custom matchmaking game will put in any code that they want. Anyone can join this private game if they have the right code. Only the host can start the match/ end it.