Connecting Skype for Business Online with on-premise Exchange 2016

Currently we have a client who is essentially using Office 365 purely for the Office licences rather than for email. They just put in an on-premise Exchange 2016 server over the summer but one of the users would like to be able to use Skype for Business online but have it synchronize with her local Exchange profile for contacts.

Their Office 365 is currently still setup with a *****@***** account as they don't route email or anything else through it. It doesn't really make sense to me to hybridize the deployment as it is literally only one user who would ever use the Skype service, and they have no intentions in the foreseeable future to have any sort of mail delivery performed to Office 365.

What I'm wondering is if there is another way to have continuous synchronization of her contacts between the Office 365 account and her local account? And if the only option is to hybridize the deployment, can this be done to only allow for Skype for Business not email?
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Tyler BrooksNetwork and Security ConsultantAsked:
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Jose Gabriel Ortega CCEO J0rt3g4 Consulting ServicesCommented:
Office365 (For Office, and nothing more) (if they have mail and Skype for business) they are actually throwing away their money.
If they have Exchange 2016 in-house, this means that they are 2 different environments.

And using the O365 Skype for business Syncronizing the On-premises contacts... simply is not possible at least you do scripts to get the contacts and connect to o365 to synchronize "ONE-WAY" the contact.

Simply you can't get 2 whole differents infrastructures synchronized if they aren't connected (hybrid).

I'd say that if they like to throw their money they can also deploy an on-premises Skype for business haha :)

Well to be serious about this, it's your duty to fix and teach your client's infrastructure to use what they need to, this decision is based on the knowledge of the client and their people.

I'd suggest here a migration of all their emails and domains to o365 and evangelize their infrastructure to use and pay what they really need (in o365)...
why is this?
Because they are asking you "cloud features" into On-prem that they aren't really possible if you have 2 separate systems. You should have seen that coming and going forward will keep coming.

So there are 2 infrastructures, they need to keep 1 (o365) or on-prem, and depending on the level of controls that they want of their data and own infrastructure (including administrators and people as part of that infrastructure) you need to give them the reasons relying on the knowledge of your client to take one over the other. Prepare the project and Execute it. I mean you have an opportunity of a project with them because of this requirement.

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