Administrators can update attributes for a group of users for example if a department is given a new title or change of location. You will need access to Management Console and User Management. Please note that these attributes may be used in Audience Groups.
Go to User management and select View advanced search settings. Under the Attributes tab, select the common attribute for the group of users e.g. Department - IN - Human Resources.
Select Search which will provide a list of users - using the tick box, select the users you would like to edit and select create a new selection.
Select View selected users on the right hand side to confirm that you have the correct list of users, once confirmed you can select Edit attributes.
Under the edit user attribute, use the drop down to select the attribute you want to update e.g. Department and on the open field on the right, update the attribute and select Update selected users