Forum Discussion
Cutover and Staged migrations.
Staged migration is NOT supported on 2010+. And yes, both cutover and staged require profile reconfiguration. This is one of the main reasons people prefer to use Hybrid instead, where possible.
Impersonation is only needed when you are using some EWS-based migration tool. None of the Microsoft supported methods requires this, so it's for third-party tools.
There is no restriction in the number of mailboxes you can migrate via staged migration, certainly not any restrictions for under 2000 mailboxes.
Staged migration is NOT supported on 2010+. And yes, both cutover and staged require profile reconfiguration. This is one of the main reasons people prefer to use Hybrid instead, where possible.
Impersonation is only needed when you are using some EWS-based migration tool. None of the Microsoft supported methods requires this, so it's for third-party tools.
There is no restriction in the number of mailboxes you can migrate via staged migration, certainly not any restrictions for under 2000 mailboxes.
Thanks Vasil. I have one more question on this. Why is it that staged migrations are not supported on 2010, 2013 or 2016. I cant seem to find a good reason why. I see the notice in this document here but it doesn't say why.
https://docs.microsoft.com/en-us/exchange/mailbox-migration/what-to-know-about-a-staged-migration
Thanks,
Robert
To put it bluntly, because Microsoft decided so :) You do have the option to do minimal Hybrid with those Exchange versions, which gives you all the benefits of a staged migration, and more: https://blogs.technet.microsoft.com/exchange/2016/06/24/hcw-improvement-the-minimal-hybrid-configuration-option/
