Only Admin users can make profile changes like user names.  
Follow these steps to change the user name:
	- Log in to the CRM.
 	- Click the User Menu on the top right corner of the screen.
 	- Click the Settings button.
 	- Look for the User Management section.
 	- Select Users. The Users List View page opens.
 	- Hover over the username of the user you want to change.
 	- Click the Edit icon.
 	- Choose the Change Username option.
 	- Enter the new user name and password. Confirm the password.
 	- Click Save.
 
After saving, you must verify the new user name. 
	- Open the user record with the new user name.
 	- Click the exclamation mark beside the Username field.
 	- Click the Click here links in the tooltip.
 
Note: If you are a 
Standard user, you can request a CRM admin change your username. 
There’s also an alternative way to change a user’s username:
	- Log in to the CRM.
 	- Click the User Menu on the top right corner of the screen.
 	- Click the Settings button.
 	- Look for the User Management section.
 	- Select Users.
 	- Click the user record whose user name you want to change.
 	- Click the More icon on the top right corner of the user record. 
 	- Select the Change Username option.
 	- Enter the new username, password, and confirmed password. 
 	- Click Save.
 
A verification email is sent to the new email address in the Username field. The user must click the verification link in the email to verify the new user name.
Note: The user also needs to change the password.