Merging two AD domains into a single 365 and using Azure AD connect

Shekhar Kembavi 5 Reputation points
2023-02-01T13:04:09.0133333+00:00

I would like to know if this senior is possible and what is the best approach.

Domain A - Has its own AD + AD Connect + Exchange In Hybrid With O365 and half of the mailbox are in O365

Acquired Domain B - Has its own AD + Exchange and the company wants its AD accounts and mailbox to be migrated to Domain A's O365 tenant.

Is this possible?

There is no trust or communication between Domain A & Domain B

Thanks

SK

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  1. Aholic Liang-MSFT 13,741 Reputation points Microsoft Vendor
    2023-02-02T07:25:30.6633333+00:00

    Hi @Shekhar Kembavi ，

    Yes, you can merge two AD domains into one 365 tenant with Azure AD Connect .

    Here is a similar thread about the important steps of merging company mailbox domains for your reference:Forest and Exchange Online Migration, Company Merge - Microsoft Q&A

    (kindly note: You can skip the step where AD B reverse-synchronizes to A)

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