When connecting to the Office365 users in the Contact app template, it is pulling my personal address book, and not our corporate global address book. I have set the global address book as the default in Outlook.
Contacts App works differently from the Outlook client.
The Contact App uses Office 365 Outlook connection API response as the data source, and the Office365 Outlook function should be built based on the Microsoft Graph API, specially, for the contact, it documented as below:
If you are looking for the Global Address List, currently there is no direct way to get the people list, to workaorund this ,you may take a try with the following two function using Office365 Users connection:
Let me know if you have any further concern.