Set-PnPUserProfileProperty : This operation requires you to be managing your own data or have administrator privileges

[alan-hu]

Found another issue #277 but my issue looks different in term of error message, so I am not sure if they are the same or different.

I have a cloud only account with active SPO Admin role,

To reproduce, run the following:
Connect-PnPOnline -Url https://my-tenant-admin-site.sharepoint.com -credential (get-credential)
Set-PnPUserProfileProperty -Account someone-else-in-my-org-upn -Property "custom-property-name" -Value "this is a single-line-of-text"

This custom user profile property is a string type of user profile property that is editable but hidden from users' Edit Profile screen.

And we received the following error:
Set-PnPUserProfileProperty : This operation requires you to be managing your own data or have administrator privileges.
At line:1 char:1
+ Set-PnPUserProfileProperty -Account xxx.yyy@zzz -Property ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : WriteError: (:) [Set-PnPUserProfileProperty], ServerException
+ FullyQualifiedErrorId : EXCEPTION,PnP.PowerShell.Commands.UserProfiles.SetUserProfileProperty
`