Let users sync email contacts with their iPhone or iPad
Office 365 users can synchronize their Outlook Web App contacts with the address book on their iPhone or iPad using the OWA for Devices contact sync feature. It’s already turned on. And as the Office 365 admin, you can turn it off.
Sign in to Office 365 with your work or school account.
In Office 365, select Admin. Or, select the app launcher , and then select Admin.
Go to Service settings> Mobile access.
Do one of the following:
Turn on OWA for Devices contact sync so users can sync their Outlook Web App contacts with the address book on their iPhone or iPad.
Turn off OWA for Devices contact sync to prevent users from syncing their Outlook Web App contacts with the address book on their iPhone or iPad.
What is OWA for Devices contact sync?
OWA for Devices refers to the OWA for iPhone and OWA for iPad apps. With these apps, users can set up their mobile device to synchronize their Outlook Web App contacts with their mobile device’s address book.
Admins can use OWA for Devices contact sync to control whether users can sync their contacts. This feature is already turned on, allowing users to easily maintain their business contacts on several iOS devices. However, if you have privacy concerns and don’t want the contact information for your organization shared to your users’ mobile devices or any services they use for storing data, you can turn OWA for Devices contact sync off.
When you turn OWA for Devices contact sync off, the contents of a user’s Outlook Web App contacts folder won’t be copied to their iOS device address book. Any contact information that was previously synchronized with the user’s mobile devices is also removed. However, the user can change their device’s privacy setting to not allow access to Outlook Web Access. In this case, the data cannot be altered or removed. After you turn OWA for Devices contact sync off, it can take up to eight hours for the change to take effect.
OWA for Devices contact sync controls synchronization only for users who connect to their mailboxes by using the OWA for iPhone or OWA for iPad apps. If you have enabled Exchange ActiveSync in your organization, your users can still sync their contacts. Exchange ActiveSync is offered on many mobile devices and can provide different levels of security for your organization’s data. For information about how to enable and disable Exchange ActiveSync, see Manage how users use email and IM on their phones.