Forum Discussion
HCW8064 The HCW has completed, but was not able to perform the OAuth portion of your Hybrid
Yes you are correct in your assessment of what OAuth does in the context of Hybrid. Whilst the lack of OAuth will not prevent you from migrating mailboxes to the cloud, I would urge you to try and get it working as per - https://docs.microsoft.com/en-us/exchange/configure-oauth-authentication-between-exchange-and-exchange-online-organizations-exchange-2013-help?redirectedfrom=MSDN
Especially if you are using Teams and wish your users to have the full possible functionality whilst they still have an on-premises mailbox.
Thanks for the reply.
Since I have a two-node dag, should the procedure described in the microsoft article to enable OAth be done on both servers?
No mailboxes will remain on the servers on premises, it will be used only for management.
Also the dag will be deleted and only one server will remain.
thank you
Regards
How many mailboxes do you have, and how quickly do you anticipate being able to complete your mailbox moves? If it's a short time period, you could possibly skip this step.
If you did that, I'd encourage you to thoroughly test cross premise mail flow and free busy using a test migrated mailbox to ensure that things are going to work for you as required whilst you are migrating and have mailboxes both on-premises and in the cloud.
Thanks for the reply.
There are about 500 mailboxes to migrate and I think it will take about 2 weeks.
I wanted to understand if the procedure to enable OAth (article microsoft https://docs.microsoft.com/en-us/exchange/configure-oauth-authentication-between-exchange-and-exchange-online-organizations-exchange-2013-help ) must be performed on both nodes of the DAG.
Also from what I understand OAth is only for mailboxes that are on premises and not for those on o365, correct?Thank you
Regards
