Managed user with different domain

Hi Pamela, 

Welcome to Box Community and glad to assist! 

Box Administrators should be able to modify their managed user's account details. 

To edit a managed user:

1. Go to Admin Console > Users and Groups.
2. Click the Managed Users tab.
3. Click the user name.
4. Make any desired changes. See the Managed Users Tab section of Users & Groups Settings for details. Click Edit () in each section to make changes to the user account. (If the section is collapsed, hover over the section header or click  to expand the section and see the Edit button.)
5. Click Save.

If an error occurs, kindly open a new case and a member of our team will get in touch. 

Thanks for posting!