There is often the case that a female user will have a name change due to change in marital status. Here is the basics of how to change their name in both Active Directory and Office 365.
Active Directory User Changes Name objects
Open Active Directory Users and Computers
Find the user needing the changed name, right click on them and choose the “Rename” option.
Change the user’s name as needed then press Enter then in the window that opens make all the further changes needed and click the “OK” button.
Click on the View menu at the top and check the “Advanced Features” option.
Double click on the users new name to open their Properties. Change the email address if needed in the General tab.
Choose the “Attribute Editor” tab, scroll down the list to “proxyAddress” attribute and double click it. Click on the current SMTP:firstname.lastname@example.org and click the “Remove” button then change it to a smtp:email@example.com then click the “Add” button.
Type in SMTP:firstname.lastname@example.org for the user and then click the “Add” button. Click the “OK” button on this window and the one beneath it.
Make sure to also rename the users Redirected Folder if there is one created via Group Policy
Run a manual sync of the DirSync tool via the Microsoft Forefront Identity Manager console.
Changes to Office 365
Make sure the Windows Azure Active Directory Module for Windows PowerShell is installed properly
Open Windows Azure Active Directory Module for Windows PowerShell as administrator
Type in the following to run signed scripts for Exchange Online:
Type in the following to enter the administrative credentials for Office 365:
$creds = Get-Credential
Enter the Office 365 Administrator credentials then click “OK” button.
Type in the following to connect to Office 365 via PowerShell:
Connect-MsolService -Credential $creds
Type in the following to connect to Exchange Online via Powershell: