I have another Stack Overflow account linked to my Facebook account. I believed the first account I signed up was Stack Exchange.

When I tried to log in to Stack Overflow today, it said the account didn’t exist. I tried the account recovery, and it said my email could not be found in the record.

My Facebook account is still showing the account is active:

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  • my original account: stackoverflow.com/users/11929921/cheng-hui-yuan
    – Nova
    Jun 8, 2022 at 6:16
  • 3
    I can't speak to how it happened to be the way it is, but you can use the contact us button at the bottom of the page, then a staff member will sort it our for you if you provide them with the details (only they have the power). I thought Facebook/Google logins were part of the OpenID system which has been discontinued - but don't quote me on that.
    – W.O.
    Jun 8, 2022 at 6:29
  • 3
    @JiminyCricket. no, Google and Facebook are the only login providers left, all the rest have been abandoned. Jun 8, 2022 at 7:01
  • 3
    @NovaCheng just to make sure, use a browser to log in, not the android or iOS app. They are both not maintained anymore so their login naturally broken. Jun 8, 2022 at 7:02

1 Answer 1


I contacted the SO support. After providing some info, they helped me to merge my old and new account. I can now use my new credentials to access the original account.

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