Currently running 4 locations, separate IT depts at each. We use office 365 company wide working from the same domain/url and are running a single domain at one of the offices. Currently one of the admins is looking at adding Active Directory Synch: https://portal.office.com/AdvancedSetup/SetupExchange?scenarioType=DirSyncSetup to his local ADDS.
He then switched up too AD Connect:
https://azure.microsoft.com/en-us/documentation/articles/active-directory-aadconnect-prerequisites/
and wants to add this to his domain (the same domain name we all use for office 365) to take advantage of the SSO mechanism.
My fear, and it may be unfounded, is that as soon as he adds the domain that all users are working with in 365 into the Azure ADFS everyone that is not a member on his local ADFS will lose the ability to connect to office 365 without the use of a proxy server and a VPN.
Has anyone had any experience adding multiple locations not bound by single domain into Azure directory synch? 3 of the offices are currently running workgroups and are not domain joined.
Thanks!