You can't directly "add" a Switch to your Minecraft account. Instead, you need to link your Nintendo Switch account to your existing Minecraft account. This allows you to play Minecraft on your Switch using your existing account, which includes your progress and purchases.
Here's how to link your accounts:
- Launch Minecraft on your Switch.
- Select "Sign In" from the main menu.
- Choose your preferred sign-in method:
- Microsoft Account: You'll be prompted to enter your Microsoft account credentials.
- Mojang Account: If you have an older Mojang account, you can link it to your Microsoft account.
- Follow the on-screen instructions to complete the linking process.
Once your accounts are linked, you can access your Minecraft worlds, skins, and other content on your Switch.
Note: You may need to create a Microsoft account if you don't already have one.