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BryceContento's avatar
BryceContento
Copper Contributor
Nov 17, 2021

Tenant to Tenant Migration from Existing Hybrid Model

Our company was recently acquired, and the desire is to migrate our tenant into theirs.   - we are in a Hybrid deployment (1 remaining OnPrem Exchange server** and using AzureAD Sync) - we are a r...
exchange
hybrid
migration
On-Premises
BryceContento's avatar
BryceContento
Copper Contributor
Nov 18, 2021

VasilMichev Appreciate the reply.

 

Yes, I was planning on stripping out the hybrid model first. I don't see any continuing need at this point.

 

The EndState:

- Company1.com domain moved to Company2's tenant

- Company1's users and data are migrated into Company2's tenant and associated with Company1.com

- all Company1's mailboxes are in ExO within Company2's tenant

- decommission Company1's last OnPremEX

- Company1's local AD sync's with Company1.com in AAD in Company2's tenant

- Company1's users and local resources continue to authenticate as always (against Company1's local AD)

 

If we simply move our existing domain into Company2's tenant then migrate the users in Company1 (my company) into Company2's tenant (including all of their data) and associate them with my domain there, am I able to continue to use Company1's local AD to manage and maintain users by just pointing AD Sync to the domain within the new tenant? AND will the local AD for Company1 continue to function for local authentication as it currently is?

VasilMichev's avatar
VasilMichev
MVP
Nov 18, 2021
Yes, though "just pointing ADSync" usually means you need to reinstall/reconfigure. But yeah, it's doable. Or you can just go the extra mile and consolidate both ADs.
  • BryceContento's avatar
    BryceContento
    Copper Contributor
    Nov 18, 2021

    thanks VasilMichev 

     

    re-setting up sync isn't a big deal and we aren't ready to consolidate. I think this is the plan of attack we'll take. 

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