Nintendo is ending support for account logins and creation through Twitter or Facebook (via Eurogamer). Starting October 25th, you’ll have to log in using your Nintendo account username and password or through your linked Google or Apple account.
If you’re asked to sign in again once the new policy goes into effect, simply enter the email address or username associated with your Nintendo account to sign in. You can also use your Google or Apple account (given that you’ve previously linked them to your Nintendo account).
As of 10/25/2022, it will no longer be possible to sign in to a Nintendo Account using a Facebook or Twitter account. We apologize for any inconvenience.
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More info on signing in from 10/25/2022:https://t.co/hxcwFP1O9s