How to configure Exchange ActiveSync in BlackBerry UEM?

I’m trying to set up Exchange ActiveSync in the BlackBerry UEM but all I can see in their documentations are about “gatekeeping”. I don’t get it. Can someone help?

This should help you get started: https://docs.blackberry.com/en/endpoint-management/blackberry-uem/12_11/administration/email-calendar-contacts/ake1373983849466