Y-Comm

The Y-Comm (Japanese: ＹＹ通信 YY Communication) is a feature introduced in Generation VIII which is used for trading Pokémon and Link Battles over local wireless or on the internet through Nintendo Switch Online. It is the successor to the C-Gear, Player Search System, and Festival Plaza interfaces from previous games.

In the overworld, stamps will appear on the left side of the screen with the names of players making a request. Upon opening the menu with the Y Button, the player can view a list of requests, including requests to join a Max Raid Battle.

Profile
The player can set their player icon.

Search Stamps
The player can search for stamps.

Name origin
According to Shigeru Ohmori, its Japanese name, YY Communication, is a pun on ワイワイ waiwai, meaning "to have fun, everyone excited together." It also references the use of the Y Button to access the interface as well as it being used to access Wi-Fi functionality.