I need to move 300 users to Exchange Online but our domain functional level is at Windows 2000 native. I'd like to move users to Exchange Online first (without SSO), then (perhaps two months later) raise our domain functional level and use DirSync
with WAAD so users will have SSO.
Can I set up WAAD now with our domain name (e.g. ourcompany.com) without SSO, then implement DirSync once we have our new domain controllers online? Will there be any problems migrating to SSO after running Exchange Online without SSO using the same domain? How would I execute the change over to SSO? thx.