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Editorial Team
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Editorial Team
Asked: May 24, 20262026-05-24T16:48:05+00:00 2026-05-24T16:48:05+00:00

I set up Devise to log in with a username instead of email address

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I set up Devise to log in with a username instead of email address because a significant number of our users share the same email address with their spouse. It is a unique market that we serve. But each spouse needs separate accounts to record personality instrument results.

The database no longer requires a unique email address so it will accept the same email addy for two accounts. However, Devise is still requiring a unique email address for each account. Is there a setting or a work around that i can use to change this?

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  1. Editorial Team
    Editorial Team
    2026-05-24T16:48:06+00:00Added an answer on May 24, 2026 at 4:48 pm

    Look in the config/initializers/devise.rb. You can change the default authentication key, which by default is :email to be anything you want, for example:

    config.authentication_keys = [ :username ]

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