The primary email is the email address required to sign-in to your account. If the user mistakenly enters a wrong email address and then unable to access the report. However, many a time, while using Facebook, users want to change the primary email address, and configuring the ways– How to Change Primary Email on Facebook? The steps to change the email address on Facebook are hereby given below. Guidelines to Change Primary Email Address of Facebook in iPhone Step 1: The first step is to...