Hybrid deployment : Exchange 2010 to Office 365

We have currently started the migration of  Exchange 2010 on-premises to O365 ...but the migration of our mailboxes hasn't started yet.
However, AD has been already replicated to the cloud along with the licences...How do migrate one mailbox from our existing Exchange 2010 SP3 server to Office 365 for testing purposes without affecting other mailboxes ?
Cedric DSystems EngineerAsked:
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Vasil Michev (MVP)Commented:
Which type of migration are you aiming for? Guessing Staged or Hybrid? Both allow you to move the mailboxes in batches, so you can easily do a test run with a user or two.

The licensing part is a bit unclear however, do you mean that you have already applied Exchange license to the cloud user, thus provisioning a mailbox for them?
Cedric DSystems EngineerAuthor Commented:
It is an Hybrid migration with the Exchange certificates that I already imported (sorry for not being clear with the "licences" term). As I stated previously, I wanted to migrate only one user for testing purposes without losing his email and / or affecting other mailboxes but there is different option for it (either from the Active Users or Exchange tab), I'm not sure how to do this-- step by step ?
Vasil Michev (MVP)Commented:
Yeah got confused with the PM, the title here clearly states Hybrid :) To move a single mailbox, you can use the New-MoveRequest cmdlet: https://technet.microsoft.com/en-us/library/dd351123(v=exchg.141).aspx

Here's an example:

New-MoveRequest -Identity user@contoso.com -Remote -RemoteHostName mail.contoso.com -RemoteCredential $OnPremAdmin -TargetDeliveryDomain “Contoso.mail.onmicrosoft.com”

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Cedric DSystems EngineerAuthor Commented:
Thanks a lot for this helpful information. Other than using the PowerShell command line...what will be the process to move the mailbox from Exchange 2010 to O365 ?
Mark GalvinManaging Director / Principal ConsultantCommented:
Don't know if this questions is still active but as long as your Office 365 system is still in migration mode then you can use the Exchange Admin Center to move one mailbox. this MS page details https://support.microsoft.com/en-us/kb/2798131 

Hope that helps

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