Global Contact list is not real time sync on office365 and Outlook, office365 need time to rebuild the list and wait for outlook to connect, you can try to manual update the contact list on outlook. Click File tab, Click on Account Settings, and then click Download Address Book. In the Offline Address Book dialogRead More
Open browser http://portal.office.com
Go to your iPhone or iPad’s Settings > scroll down and tap Accounts & Passwords > Add Account. Note: If you’re on iOS 10, go to Mail > Accounts >Add Account. Note: Tap Configure manually if you need to enter server settings. Enter the password associated with your email account. Tap Sign in or Next.