Some Pages not working on mobile – Office 365 Site
Due to security settings and the way to keep the site secure. Some feature’s are not available on mobile. Meaning you’ll need to go directly to Office.com or the use the links below to use these features.
Manage my users – mystaff.microsoft.com
Manage my account – https://myaccount.microsoft.com/?ref=MeControl
for more assistance contact the help desk.