How to trade in Pokémon Scarlet & Violet?
Have a Nintendo Switch Online Membership
You need to have a Nintendo Switch Online membership to trade online.
Before you can start trading online, you need to make sure that you're connected to the internet. You'll know whether you're offline or online by looking at the upper right corner of your screen. The wi-fi icon will glow green if you're connected to the internet. Otherwise, it will stay gray. If you're not connected to the internet yet, press the left shoulder button to go online.
After that, from the Poke Portal screen, select Link Trade then enter the Link Code we sent you to match-up with our trade. Trade over any random Pokemon to receive your order!