How do we change Administrator Email to someone else for the main account and get rid of that old one without losing data and such

Question

How do we change the Administrator Email to someone else for the main account and get rid of that old one without losing data and such

Answer 1

Hi MandyLynn,

I wanted to follow up on the migration of your Administrator account to ensure the transition was successful. To summarize, preserving the exact data footprint (OneDrive, Exchange, Teams) requires changing the User Principal Name (UPN) in the Microsoft 365 Admin Center by creating a new alias and promoting it to the Primary SMTP address. This method effectively transfers the identity and ObjectId to the new user without requiring data migration tools. Conversely, if you opted to separate the historical data from the new identity, converting the previous account to a Shared Mailbox and provisioning a new user is the standard procedure to ensure data integrity and security. Please confirm if the directory changes have replicated successfully or if you require further assistance with the specific Admin Center settings.

If the issue has been successfully resolved, please consider accepting the answer as it helps other people sharing the same question benefit too. Thank you!

VP

Answer 2

Hi Mandy,

To change the Administrator's login email to a new individual while strictly preserving the associated ObjectId, OneDrive data, Exchange mailbox contents, and Teams history, you must modify the User Principal Name (UPN) and Primary Email Address within the Microsoft 365 identity framework. This process allows the identity to persist while swapping the authentication keys and display attributes.

To execute this, log in to the Microsoft 365 Admin Center using a Global Administrator account. Navigate to Users and select Active users. Locate and click on the specific Administrator account you wish to modify to open the properties flyout. Under the Account tab, find the Username / Email section and select Manage username. You must first add the new email address (the "someone else") as a new alias. Once added, select the ... (ellipses) next to this new email and choose Change to primary email. This action rewrites the UserPrincipalName attribute in Azure Active Directory, making the new email the mandatory login credential. Once the primary status is confirmed, you can delete the old email alias to "get rid of it" completely. Ensure you also update the Display Name in the Account tab to reflect the new person's actual name.

Please note that while this method creates a seamless transition without data loss, the new administrator will inherit the entire activity history of the previous user. If your intent is to maintain the data for archival purposes but provide the new administrator with a fresh, empty account, the industry standard "best practice" is to convert the old user account to a Shared Mailbox (via the Mail tab in the Admin Center) and then create a completely new user account for the incoming administrator. The Shared Mailbox approach preserves the old data without license costs and allows the new admin to access it via delegation, avoiding the security risk of a new employee inheriting a "dirty" profile with potentially sensitive personal history from the former admin.

I hope you've found something useful here. If it helps you get more insight into the issue, it's appreciated to accept the answer. Should you have more questions, feel free to leave a message. Have a nice day!

VP

Answer 3

To change the administrator email for the main account without losing data, you can follow these steps based on the type of billing account you have:

1. For an MOSP (Microsoft Online Subscription Program) account:
   • Update your contact email address by following the instructions in the Microsoft 365 admin center. You can select Update contact info when updating your billing account.
2. For an MCA (Microsoft Customer Agreement) billing account:
   • You can give the new email address permissions on your account. This means you would need to add the new email as a user with appropriate permissions.
3. Removing the old email:
   • After adding the new email address and ensuring it has the necessary permissions, you can remove the old email address from the account settings. However, ensure that the new email is fully set up and operational before removing the old one to avoid any disruption.

By following these steps, you can change the administrator email while retaining access to all data associated with the account.