Link Multiple Accounts doesn't work! auth/account-exists-with-different-credential

[AntonioVentilii]

If the user first login using google, and then using any other provider (for example github) the result is below... (it can be tested in the demo, same results)

[0xbrayo]

I have been experiencing a related issue with Google and Github providers. When I first login with Github all goes well. When I later login with Google, same email, I get logged in but the two providers are not linked. The Github authentication is replaced with just google in the Firebase console. When I later try to login with Github I am unable but no error is displayed. I have tested with the demo app and I have been able to reproduce the error.

[mahmoudaboalwafa1]

Hello Antonio you should go to authentication and then Settings and select create multiple accounts for each identity provider

[0xbrayo]

Hello Antonio you should go to authentication and then Settings and select create multiple accounts for each identity provider

That doesn't fix the issue, he wants as I do too, to link multiple auth providers to a single account.

[mahmoudaboalwafa1]

@brayo-pip Hello brayo I have been facing this problem and I have selected the option that is in the image and I succeeded I think it is preferable to delete all users and make an update to the cookies

[0xbrayo]

That will make two accounts for each Provider. If I have email example@gmail.com and I sign with Google, I'll have a google entry in firebase console. When I sign in with Github using example@gmail.com that will create a separate entry in the firebase console. But we want to have a single entry with both providers linked. I don't have a screenshot to link right now but I hope you are familiar with what I hope to achieve. The linked entry should show both icons of the linked providers, Google and Github.

[mahmoudaboalwafa1]

I understand you now, you want when a user registers with a Google account, and we assume that there is another button on a site when logging in, and this button registers with a GitHub account, meaning two accounts are added and not a change between a Google account and a GitHub, right

[damencho]

@brayo-pip Hello brayo I have been facing this problem and I have selected the option that is in the image and I succeeded I think it is preferable to delete all users and make an update to the cookies

But this way the faceboook email is missing in the token after login.

[damencho]

The problem is that in case of an error like auth/account-exists-with-different-credential the signInFailure callback is not executed. The case when using a popup the problem is more visible as the popup closes without any notification and you are left with an empty page.

[dbrody]

Is there a fix for this? Ideally the signIfFailure would be called and worst case our callback can try to merge accounts. I would expect this UI to handle this use case by default but since it doesnt what is the recommended fix for this?

[aress31]

Any update on this?

It seems to me that the Link accounts that use the same email is a bit useless as not working as one's would expect and not preventing auth/account-exists-with-different-credential, for instance:

      try {
        const userCredential = await signInWithPopup(auth, provider);

        console.log("userCredential", userCredential);
        const { isNewUser } = getAdditionalUserInfo(userCredential);
        console.log("isNewUser", isNewUser);

        if (isNewUser) {
          await auth.currentUser.delete();
          throw new Error(`${email} is not registered.`);
        } else navigate(`/${auth.currentUser.tenantId}/projects`);
      } catch (error) {
        if (error.code === "auth/account-exists-with-different-credential") {
          const test = OAuthProvider.credentialFromError(error);
          console.log("test", test);
        } else throw error;
      }
    };

I have multiple providers, Google and Microsoft for instance and I would expect this code to work seamlessly regardless of the selected provider.

[doomizz]

Same issue here, on version 6.1.0.
It can result on user being stuck on a white page.
The UI container is present in the DOM, but no content, no loading, nothing.

[pamafe1976]

Im having this same problem while trying to login with Google and Facebook with the same email.
At first login with Facebook works, but one I log with Google, then Facebook login returns firebase_auth/account-exists-with-different-credential