Having users with no emails set in Intercom service

Question

I'm using intercom SDK and implement [Intercom registerUserWithEmail:...]; methods after user logs in or registers, also every launch i call:

- (void)applicationDidBecomeActive:(UIApplication *)application {

    NSString *userEmail = [Utilities getUserEmail];
    if (lastUsedEmail) {
        [Intercom registerUserWithEmail: userEmail];
    }else
    {
        [Intercom registerUnidentifiedUser];
    }
}

Here is how it looks like in intercom web service:

Why these email fields are Unknown for particular users?

Answer 1

Have you checked that registerUnidentifiedUser is not called? If it's called - that's the source of those email-less users.