Forum Discussion
Office 365 \ Exchange Hybrid Multiple Forest Domains. Reduce 2 AD accounts into 1 AD account.
Company A have an Exchange 2016 / Office 365 hybrid setup. This has been in place now for about 4 years. All mailboxes are migrated to Office 365. The admin of these mailboxes is still done via the l...
Some form of soft/hard-matching should do the trick, although it's probably easier to just collapse the two domains/forests into a single one. Here's a sample article describing the hard-match method: https://blogs.technet.microsoft.com/praveenkumar/2014/04/11/how-to-do-hard-match-in-dirsync/
Be advised that this HardMatch might no longer work as from newer AAD Connect versions the default source anchor for matching up accounts is the ms-ds-consistency-guid :) 😊https://blogs.technet.microsoft.com/latam/2018/03/27/using-the-consistencyguid/