The email address is already in use by another account

[bitlab-code]

Hi

Version info

firebase-functions: ^0.6.3
firebase-admin: ^5.2.1

Were you able to successfully deploy your functions?

Yes

Expected behavior

I'm trying to insert two user with same email address but with different phone number.
When configure sign-in methods I setup only phone number as authentication provider (Email/password disabled) and I allowed multiple accounts with the same email address.

@katowulf same error of #101 but probably different causes

The snipped code of the function (onWrite) trigger from location /USERS in the Database:

    const auth = admin.auth();
    /* ... */
    if (!event.data.previous.exists()) {
      const userData = event.data.current.val();
      console.log(`A new user was created: ${uid}. Now syncing in Auth...`, userData);
      return auth.createUser({
        uid: uid,
        email: userData.email,
        phoneNumber: userData.phone,
        disabled: false
      }).then(userRecord => {
        console.log(`Done. Created new user in Auth: ${uid}`, userRecord);
        return Promise.resolve(uid);
      }).catch(error => {
        console.error(`Error Creating new user in Auth: ${uid}`, error);
        sendEmail.logEmail(/* ... */);
        return Promise.reject(`${error}`);
      });
    } 

All ok when I enter the first user. The error occurs on the second (with the same email)

the log

Error Creating new user in Auth: -Ku_GnJvedvEbtfgn0xP { Error: The email address is already in use by another account.
    at FirebaseAuthError.Error (native)
    at FirebaseAuthError.FirebaseError [as constructor] (/user_code/node_modules/firebase-admin/lib/utils/error.js:39:28)
    at new FirebaseAuthError (/user_code/node_modules/firebase-admin/lib/utils/error.js:104:23)
    at Function.FirebaseAuthError.fromServerError (/user_code/node_modules/firebase-admin/lib/utils/error.js:128:16)
    at /user_code/node_modules/firebase-admin/lib/auth/auth-api-request.js:399:45
    at process._tickDomainCallback (internal/process/next_tick.js:135:7)
  errorInfo: 
   { code: 'auth/email-already-exists',
     message: 'The email address is already in use by another account.' } }

[laurenzlong]

This is a firebase-admin issue, can you file in https://github.com/firebase/firebase-admin-node?