Sync the native
iOS apps on your mobile device with your Yahoo personal info. It can take
several minutes for the synced information to show up.
1.
Tap Settings on
your device.
2.
Tap Accounts &
Passwords.
3.
Tap Add Account.
4.
Tap Yahoo.
5.
Enter your email address and
tap Next.
6.
Enter your password and tap Sign
in.
7.
Slide the "Mail,"
"Contacts," and "Calendars" sliders on.
For more information: Yahoo Mail Customer Service
Number |Yahoo Customer Service Number