Follow the procedure below to have your personal Outlook contacts available across other apps on your phone. This will sync only your personal contacts (not the Global Address List). It make take a few minutes for synchronization to complete, even after new contacts are added or updated later.
In iOS, any changes made in the Contacts App will not be available in the Outlook for Mobile App. The sync is one-way, from Outlook to the native Contacts app, so your contacts should be edited within Outlook (desktop, OWA or the Outlook app).
1. Open Outlook for Mobile App and select the Photo icon.
2. Select the Gear icon.
3. Under “Mail Accounts” select Office 365 with your email address below it.
4. Switch toggle on for Save Contacts.
1. Open the Outlook for Mobile App and select the hamburger icon.
2. Select the Gear icon.
3. Under “Accounts” select Office 365 with your email address above it.
4. Switch toggle on for Sync contacts.