Hide last name?

Hi Both,

I am afraid the surname is populated by the SSO flow from the Microsoft Account or the Office 365 account and is a required field. As a result you can update it all you like in the "Personal Information" section, as suggested above, however on next login it will reset back to the information on your respective profile.

We do not currently support the concept of nicknames, if you would like to see that in a future version of the community please feel free to submit it in our idea's space and we will of course consider it, if enough users ask for it.

Microsoft Account users can change their name in the Microsoft Account Profile page.

Note when you do so the update in the community is not always immediate, although you can force it by clicking this link.