May 27 2020 03:40 AM
Hi,
Hope everyone is safe and well.
We have synced the local active directory to azure by azure ad connect. All usernames in azure active directory is with the initial default domain name, user@organisation.onmicrosoft.com
Now I want to replace/change all the username to user@customdomain.com
Can anyone please advise how can I do that. Just to let you know, I have already verified the custom domain and made it primary domain.
May 27 2020 04:15 AM
Solution
Hi, this is most likely happening because your User Principal Names in your on-premises AD are set to username@domain.local instead of your custom email domain.
If this is the case, what you will need to do it add your custom domain in as an additional UPN suffix in Active Directory domains and trusts, and then change your users UPN's in AD Users and Computers.
Once this is done, AD sync will set the correct UPN in O365. Try this for one or two of your users first to test it out I would say.
Hope this helps.
Jun 03 2020 02:28 PM
@PeterRising
I do apologize for replying late. Sorry I was so busy with the migration activity.
Thank you so much for your feedback.
May 27 2020 04:15 AM
Solution
Hi, this is most likely happening because your User Principal Names in your on-premises AD are set to username@domain.local instead of your custom email domain.
If this is the case, what you will need to do it add your custom domain in as an additional UPN suffix in Active Directory domains and trusts, and then change your users UPN's in AD Users and Computers.
Once this is done, AD sync will set the correct UPN in O365. Try this for one or two of your users first to test it out I would say.
Hope this helps.