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Server 2016 Integration with Office 365 / Azure Active directory

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Last Modified: 2019-10-14
I have a Windows Server 2016 Standard Server with a domain with local machines. I would like to integrate this server with existing Office365 users and Azure servers for email and single sign on. Is it better to use the Essentials Office365 integration or the Azure active Directory integration or the AADConnect?
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CERTIFIED EXPERT
Distinguished Expert 2018
Commented:
IF you are running essentials then use the essentials connector.  Running AADConnect is not supported.

If you are *considering* the choice between installing the essentials experience role and installing AADConnect, I recommend AADConnect.  The experience role is gone in 2019 so I would not invest time in setting up a new infrastructure using deprecated technology.
Dave WalshOwner

Author

Commented:
I have already configured the Essentials on the server but that doesn't mean I couldn't redo the server since it hasn't been deployed. Are there advantages to the AADConnect over the Essentials?
CERTIFIED EXPERT
Distinguished Expert 2018

Commented:
Yes. Quite a few.  The essentials team wrote that connector before AADConnect existed. But the code is a decade old and not nearly as robust as AADConnect is.  From error habdly to better filtering to writeback options, AADConnect is simply better.
Dave WalshOwner

Author

Commented:
I have a large number of users on the Office365 already, will the AADConnect sync all of those users to the active directory or do they have to be created in Active directory first?
CERTIFIED EXPERT
Distinguished Expert 2018

Commented:
AADConnect wil not create users in AD. It isn't bidirectional. Nor will the essentials connector.  That is by design. Single source of authority and all that.

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