Error Message: E-Mail Address You Entered Is Already Registered

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The information in this article can help you when creating a Nintendo Account, an error appears that says the e-mail address is already registered.

An email address can only be linked to one Nintendo Account.

What to do

Are you are trying to create a new Nintendo Account or make changes to an existing Nintendo Account (update email, link NNID)? Create new Nintendo Account Update Existing Nintendo Account
This means that the email address you've provided is already associated to an existing Nintendo Account. You will need to log in to the existing Nintendo Account, instead of trying to create a new one.

To log in to a My Nintendo account:
1. Go to the Nintendo Account website.
2. Enter your email address and password and click Sign in.
  - If you don't remember the password, click Forgot your password? to request an email to reset your password.
Which information are you trying to update in your Nintendo Account? Email address Nintendo Network ID (NNID)
This means that the email address you've provided is already associated to a different Nintendo Account. The same email address cannot be added to multiple accounts.
If you receive this message when trying to link a Nintendo Network ID (NNID) to a Nintendo Account, it is likely that your email address is currently linked to multiple NNID's.

Please change the email address on your NNID to one that has not been registered to additional accounts, then try again.
- For step-by-step instructions on changing the email address on your NNID, please read Change Nintendo Network ID Information (Email Address, Gender, Region, Etc).