Facebook Email field return null (even if the “email” permission is set and accepted)

Question

For some users in our application, the email field returns NULL even if the user has granted the email access to the app. When we check the scope parameter and the validity

Answer 1

@ozba solution is not applicable because facebook now shows an alert message when user has an unconfirmed email address. So, if you're having this problem it's more liking that the user had signed up using phone number.

Some possible reasons:

• No Email address on account (only phone number)
• No confirmed email address on account
• User entered a security checkpoint which required them to reconfirm their email address and they have not yet done so users's email address is unreachable.

Check: https://developers.facebook.com/bugs/298946933534016