Forum Discussion
Unified GAL with AADConnect
- They will not, as they'll be getting the on-premises GAL.
As for free/busy sharing, org relationships are the way to go: https://docs.microsoft.com/en-us/exchange/sharing/sharing
VasilMichev, thanks for your reply.
Could you please clarify "move users to a single tenant"?
The suggested solution is a single O365 tenant with two domains (cars.com and bikes.com) as bikes.com will keep its domain. Cars.com is already configured as an Exchange hybrid and now they want to merge bikes.com into the already existing tenant.
To get a unified GAL, will an AADConnect write-back sync suffice or does bikes.com also need to be an Exchange hybrid?
Thanks, Douglas- Writeback doesnt cover recipient objects, so objects created directly in O365 will not be visible on-premises. The only way to see all recipients across both domains will be when using an O365 account and only if both domains are in a single tenant. Or you can use third-part "galsync" products to create matching entries on-premises. PowerShell is also an option, if you feel up to it.
OK, but both domains (forests) will join the same tenant ("cars.com" already is with a majority of their mailboxes in EOL) and optionally "bikes.com" will be configured as a hybrid. Without a 3rd party tool, will on-prem users from each forest not be able to see users from the other forest in GAL?
