User Profile Administration - Managing Profiles for others

User Profile Administrators can edit the profiles of other users by doing the following:

1. Go to the user profiles section of the SharePoint Admin Centre
2. Choose the Manage User Profiles option
3. Type in the name of the user whose profile you want to edit and click Find:
   
   
4. Hover over the account name column of the user you want to edit, then click the little arrow to the right and click Edit My Profile:
   

Note: This takes you to edit the profile of the selected user, despite the wording which suggests it will edit your own profile.

5. There are a large number of profile properties that can be set here. Make the changes required, then scroll down to the bottom and click Save and Close:
   

After about 10 minutes you should see the changes reflected in the User Profile. It will also be updated in the People Directory if you changed a property which is shown there.