ajdratch
asked on
Office 365 change login from onmicrosoft.com to domain.com
I am setting up a client on Office 365. I'm doing the express migration. All the accounts have sync’d.
I started migrating a couple of accounts and the migration works. Their mailbox is created and they have all their aliases assigned to their account.
The problem is the login user name is username@domaincom.onmicro
Their primary SMTP address is user@domain.com. It shows this is the primary address on-prem and when I look at their mailboxes in Exchange Admin Center online.
I need to figure out how to get this to change so their primary email address is also their login address before I can migrate any more users.
I started migrating a couple of accounts and the migration works. Their mailbox is created and they have all their aliases assigned to their account.
The problem is the login user name is username@domaincom.onmicro
Their primary SMTP address is user@domain.com. It shows this is the primary address on-prem and when I look at their mailboxes in Exchange Admin Center online.
I need to figure out how to get this to change so their primary email address is also their login address before I can migrate any more users.
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ASKER
I had the option for "Cutover" or "Express Migration." I choose Express Migration.
I did install AAD connection tool and it is running now. The only change i made to the default was specifying the OU to sync.
I can sync and migrate accounts and they will pick up all the user's email addresses but it will not change the username to match the Primary Address. The username is still user@domaincom.onmicrosoft
The Windows domain is domain.net. They do not own that so it is not getting migrated to Office 365. The user's principal name firstname@domain.net. Their primary email address is firstname Lastname@domain.com
I did install AAD connection tool and it is running now. The only change i made to the default was specifying the OU to sync.
I can sync and migrate accounts and they will pick up all the user's email addresses but it will not change the username to match the Primary Address. The username is still user@domaincom.onmicrosoft
The Windows domain is domain.net. They do not own that so it is not getting migrated to Office 365. The user's principal name firstname@domain.net. Their primary email address is firstname Lastname@domain.com
ASKER
I changed the UPN to match the email address in Attribute editor, ran the sync and it updated the login name.
This did work for users who were already sync'd.
I was on the phone with Office 365 support for over an hour and it was obvious they did not have any ideas.
Thanks so much
This did work for users who were already sync'd.
I was on the phone with Office 365 support for over an hour and it was obvious they did not have any ideas.
Thanks so much
Welcome ..
What is the value of the on-premises userPrincipalName attribute? If it's populated with the same domain.com suffix, it should be correctly synced to O365.