Linking to a Nintendo Account | Nintendo Switch Support | Nintendo
How to Create a Nintendo Account and Link It to a Nintendo Switch
How to Claim Your Nintendo Switch Username | Digital Trends
Linking to a Nintendo Account | Nintendo Switch Support | Nintendo
Can't link 3DS Nintendo Network ID?? This is the message literally on a Switch, not a PC or smart device. Trying to add funds to the eshop before it closes. : r/3DS
Nintendo Support: Can I Check Which Nintendo Account Is Linked to My Nintendo Switch User Profile?