question

ShaneKing-5196 avatar image
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ShaneKing-5196 asked KaelYao-MSFT commented

OLK2016/19 PST Import to On Prem Exch 2019

I am migrating two clients - one to On-Prem Exchange 2019, the other M365 Hosted Exchange.

What is the process OLK uses when it imports a PST? Does it:

  1. Import the content to the OLK OST regardless of the Exchange Server type then update the mailbox?

  2. Import the content direct to the mailbox, then update the OLK OST?

  3. Or is it environment dependant - e.g. Imports to OST for Exchange 365, firtect to Mailbox for On-Prem?


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KaelYao-MSFT avatar image
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KaelYao-MSFT answered

Hi @Shaneking-5196

The PST file would be first imported to the OST file, then sync with Exchange server.
The Exchange server version doesn't matter.

So it would be scenario 1.


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ShaneKing-5196 answered KaelYao-MSFT commented

Thanks Kael

Is there an event added to the Windows or Application or Office event log that tells us when the sync between the OST and the mailbox has completed - successfully or unsuccessfully? Or is it logged anywhere that I can confirm completion?

My concern is that if I the OST is say 50GB and the connection to M365 or on Prem is slow, we never know if it is ok to close OLK. I ask the question because the client has me using a Spare PC rather than having the users do it (his choice) and I'd like to be sure it has finished with a mailbox before I move onto the next user import

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You may check the sync process on the Outlook status bar or via Connection status>Local Mailbox(right-click Outlook icon on taskbar).

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Thanks KaleYao. I know you guys are very busy, the time to provide a complete answer is very much appreciated.

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Glad to help!

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