Forum Discussion
Impacts of changing default domain in Office 365 tenancy?
A client of mine has decided to change their company name and default email domain, an I have a few questions about what this impacts. Can I simply add the new domain to my current Office365 te...
Adding my input here.
1. This one is in conjunction to Dean's response, the actual domain URL used for onedrive/sharepoint cannot be changed currently. You can add as many e-mail domains as you wish, you can even change your primary domain via exchange policy so it auto updates the e-mail where it comes from. Making the domain primary may even do that as well, I do it via Exchange thou because Hybrid, so depends on if your hybrid or not how that goes.
2. you can add new domain and make it primary. However you will have to run a script to change everyone's UPN logins. Something like Set-MsolUserPrincipalName -NewUserPrincipalName user@newdomain.org -UserPrincipalName user@olddomain.org
3. Yes
4. OneDrive will not change existing folder, however, new setups going forward will use the new Organization name if you change it. And if you remove and readd onedrive the default will update to OneDrive - Orgname
5. Nope, and If your talking about the URL to the notebook, see number 1. Maybe someday but right now not possible to change that URL.
1. This one is in conjunction to Dean's response, the actual domain URL used for onedrive/sharepoint cannot be changed currently. You can add as many e-mail domains as you wish, you can even change your primary domain via exchange policy so it auto updates the e-mail where it comes from. Making the domain primary may even do that as well, I do it via Exchange thou because Hybrid, so depends on if your hybrid or not how that goes.
2. you can add new domain and make it primary. However you will have to run a script to change everyone's UPN logins. Something like Set-MsolUserPrincipalName -NewUserPrincipalName user@newdomain.org -UserPrincipalName user@olddomain.org
3. Yes
4. OneDrive will not change existing folder, however, new setups going forward will use the new Organization name if you change it. And if you remove and readd onedrive the default will update to OneDrive - Orgname
5. Nope, and If your talking about the URL to the notebook, see number 1. Maybe someday but right now not possible to change that URL.
Do I have to use a script to change everyone's UPN login, even if I'm using 100% cloud hosted Office 365 (i.e. non-hybrid)? Or if when I make the new domain the default, will that automatically trigger all Office 365 users' UPN logins to use the new domain credentials?
- Not 100% sure, never had a 100% Cloud tenant to mess with. You'll find out after changing it quickly if you'll need it or not :). Because when you change it via on-prem you have to use the script I would suspect you have to change it using the script on cloud only as well.
- You can also change the domain for all the users in bulk using the bulk edit options in the users list in the Admin Portal...of course, this approach changes the domain, not the UPN...if you need to change also the UPN then you have to use PowerShell, but the process is quite straightforward
- Changing the default will only change the UPN for new users created in future - you will need to change the UPN for your existing users, as others have mentioned.
