Hi,
We have Office 365 E3 subscription for our employees. All of our MAC users are missing contacts in their Outlook. Basically, there is no contacts under People or none showing up under the address book icon on the right side of To: when trying send new email. However, there is no such problem on PCs and all the company contacts shows up on all of them.
If user types a company contact in To: of Cc:, it finds the contact!
while the contacts are missing in Outlook, they are accessible through Lync.
Can I get your help in troubleshooting this?